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jeremybenn |
/* gnu_java_math_GMP.c -- Native MPI implemenetation over GNU MP
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Copyright (C) 2006 Free Software Foundation, Inc.
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This file is a part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or (at
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your option) any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
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USA
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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#include <limits.h>
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#include <stdio.h>
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#include <stdlib.h>
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif /* HAVE_CONFIG_H */
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#include "gnu_java_math_GMP.h"
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#include <jcl.h>
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#if defined(HAVE_GMP_H)
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#include <gmp.h>
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#endif /* defined(HAVE_GMP_H) */
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#if defined(WITH_GNU_MP)
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#else
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#warning GNU MP not available or wanted!
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#warning Invocation of natXXX() methods will raise an exception
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#endif
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/*
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* This is the implementation of the native BigInteger$NativeMPI methods which
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* use the GNU MP (GMP) library.
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*
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* In all the Java non-statically declared native methods, the second argument,
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* an instance of jobject, refers to the current NativeMPI instance; i.e.
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* "this" in Java parlance. The corresponding allocated data structure
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* representing the GMP's counter-part is pointed-to by the pointer stored in a
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* transient java field named "native_ptr". The first thing these methods do is
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* (a) access that field with a JNI GetObjectField() call to obtain the
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* reference to the gnu.classpath.Pointer subclass instance, then (b) obtain
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* the native GMP pointer (an mpz_ptr), in order to perform their job; e.g.
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*
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* JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr))
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*
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* For static methods the second argument, an instance of jclass, is almost
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* always unused --except when initializing the library, which is the only time
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* we get hold of the native pointer field.
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*
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* This code was written and tested with GNU MP version 4.1.2. More recent
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* versions of that library offer more operations; e.g. in the implementation
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* of the method Java_java_math_BigInteger_00024NativeMPI_natFlipBit, mpz_combit()
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* should be used with GNU MP versions later than 4.2. As a consequence, this
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* code should be reviewed, from time to time, to use newer features of the GNU
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* MP library.
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*/
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static jfieldID native_ptr;
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#ifdef DEBUG
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#define TRACE(msg) fprintf (stderr, "%s(%s:%d) -- %s\n", __FUNCTION__, __FILE__, __LINE__, msg)
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#else
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#define TRACE(msg)
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#endif
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#define throw_config_exception(env) JCL_ThrowException (env, "java/lang/Error", "GNU MP was not specified/found by configure")
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/*
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* Initialize the native library. Specifically this method:
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*
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* a. Pass NULLs to the mp_set_memory_functions implying that GMP should use
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* malloc, realloc and free for memory allocation, and if they fail GMP
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* will print a message to the standard error output and terminates the
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* program.
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* b. Find out and store the reference to the NativeMPI class's 'native_ptr'
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* field. This is done so later in the method invocations we can access that
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* field and acquire the native value associated with that Pointer instance.
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*/
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JNIEXPORT void JNICALL
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Java_gnu_java_math_GMP_natInitializeLibrary (JNIEnv *env,
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jclass nativeMPI)
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{
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#if defined(WITH_GNU_MP)
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TRACE("Loading GMP-based BigInteger native library");
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mp_set_memory_functions (NULL, NULL, NULL);
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native_ptr = (*env)->GetFieldID (env, nativeMPI, "native_ptr",
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"Lgnu/classpath/Pointer;");
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TRACE("Loaded GMP-based BigInteger native library");
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#else /* !defined(WITH_GNU_MP) */
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(void) nativeMPI;
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throw_config_exception(env);
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#endif /* defined(WITH_GNU_MP) */
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}
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/*
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* Allocate and initialize the data structure for an instance of a NativeMPI.
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*
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* @param this an instance of NativeMPI.
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*/
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JNIEXPORT void JNICALL
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Java_gnu_java_math_GMP_natInitialize(JNIEnv *env, jobject this)
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{
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#if defined(WITH_GNU_MP)
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mpz_ptr _this;
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TRACE("begin");
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_this = (mpz_ptr)JCL_malloc (env, sizeof (mpz_t));
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/* initialize --GMP sets the value to zero. */
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mpz_init (_this);
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/* instantiate the Pointer instance for this NativeMPI. */
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jobject native_ptr_fld = JCL_NewRawDataObject (env, _this);
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/* ... and assign it to the native_ptr field. */
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(*env)->SetObjectField (env, this, native_ptr, native_ptr_fld);
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TRACE("end");
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#else /* !defined(WITH_GNU_MP) */
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(void) this;
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throw_config_exception(env);
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#endif /* defined(WITH_GNU_MP) */
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}
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/*
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* Clear and free the data structure for an instance of a NativeMPI.
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*
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* @param this an instance of NativeMPI.
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*/
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JNIEXPORT void JNICALL
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Java_gnu_java_math_GMP_natFinalize(JNIEnv *env, jobject this)
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{
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#if defined(WITH_GNU_MP)
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mpz_ptr _this;
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TRACE("begin");
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_this = (mpz_ptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
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if (_this != NULL)
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{
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mpz_clear (_this);
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free (_this);
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_this = NULL;
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}
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else
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{
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TRACE("WARNING: Already cleared + freed");
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}
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TRACE("end");
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#else /* !defined(WITH_GNU_MP) */
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(void) this;
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throw_config_exception(env);
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#endif /* defined(WITH_GNU_MP) */
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}
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/*
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* @param this an instance of NativeMPI. On exit, this will have a value of n.
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* @param n a Java long primitive value.
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*/
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JNIEXPORT void JNICALL
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Java_gnu_java_math_GMP_natFromLong(JNIEnv *env, jobject this,
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jlong n)
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{
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#if defined(WITH_GNU_MP)
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mpz_ptr _this;
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TRACE("begin");
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_this = (mpz_ptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
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/* the size of jlong (64-bit) is either the same as a long, or that of a long long.
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* if it's the former, we use as is. */
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if (sizeof (jlong) == sizeof (long))
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{
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mpz_set_si (_this, (signed long)n);
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}
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else
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{
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/* ...otherwise, we operate on the two halves of the long long, each half
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* being 32-bit wide. for simplicity, we work with positive
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* values negating, if necessary, the final outcome.
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*/
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const int isnegative = n < 0 ? 1 : 0;
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if (isnegative)
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{
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n = -n;
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}
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mpz_set_ui (_this, (unsigned long)(((unsigned long long)n) >> 32));
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mpz_mul_2exp (_this, _this, 32); /* shift left by 32 bits */
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mpz_add_ui (_this, _this, (unsigned long)n);
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if (isnegative)
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{
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mpz_neg (_this, _this);
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}
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}
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TRACE("end");
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#else /* !defined(WITH_GNU_MP) */
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(void) n;
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(void) r;
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throw_config_exception(env);
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#endif /* defined(WITH_GNU_MP) */
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}
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/*
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* @param this an instance of NativeMPI. On exit, this will have the same
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* value as x.
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* @param x an instance of a NativeMPI's Pointer.
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*/
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JNIEXPORT void JNICALL
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Java_gnu_java_math_GMP_natFromBI(JNIEnv *env, jobject this,
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jobject x)
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{
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#if defined(WITH_GNU_MP)
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mpz_ptr _this;
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mpz_srcptr _x;
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TRACE("begin");
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_this = (mpz_ptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
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_x = (mpz_srcptr)JCL_GetRawData (env, x);
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mpz_set (_this, _x);
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TRACE("end");
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#else /* !defined(WITH_GNU_MP) */
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(void) this;
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(void) x;
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throw_config_exception(env);
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#endif /* defined(WITH_GNU_MP) */
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}
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/*
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* @param this an instance of NativeMPI. On exit, this will have the value
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* represented by the v Java byte array (in 2's complement with most
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* significant byte at index position 0). The sign is implied by the
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* value of the most significant byte.
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* @param v a Java byte array containing the byte representation, in 2's
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* complement of the signed value to assign to this.
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*/
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JNIEXPORT void JNICALL
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Java_gnu_java_math_GMP_natFromByteArray(JNIEnv *env,
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jobject this,
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jbyteArray v)
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{
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#if defined(WITH_GNU_MP)
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mpz_ptr _this;
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jbyte *_v;
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unsigned long b;
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int vlength, isnegative, i;
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TRACE("begin");
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_this = (mpz_ptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
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_v = (*env)->GetByteArrayElements (env, v, NULL);
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vlength = (*env)->GetArrayLength (env, v);
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b = (unsigned long)(_v[0] & 0xFF);
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isnegative = (b > 0x7F) ? 1 : 0;
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mpz_set_ui (_this, 0);
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for (i = 0; i < vlength; i++)
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{
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mpz_mul_2exp (_this, _this, 8); /* shift left 8 positions. */
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b = (unsigned long)(_v[i] & 0xFF);
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b = (isnegative) ? ~b : b;
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mpz_add_ui (_this, _this, (unsigned long)(b & 0xFF));
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283 |
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}
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284 |
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(*env)->ReleaseByteArrayElements (env, v, _v, JNI_ABORT);
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285 |
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if (isnegative)
|
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{
|
287 |
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mpz_add_ui (_this, _this, 1);
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mpz_neg (_this, _this);
|
289 |
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}
|
290 |
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TRACE("end");
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291 |
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#else /* !defined(WITH_GNU_MP) */
|
292 |
|
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(void) this;
|
293 |
|
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(void) v;
|
294 |
|
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throw_config_exception(env);
|
295 |
|
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#endif /* defined(WITH_GNU_MP) */
|
296 |
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}
|
297 |
|
|
|
298 |
|
|
/*
|
299 |
|
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* @param this an instance of NativeMPI. On exit, this will have the value
|
300 |
|
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* represented by the s Java string.
|
301 |
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|
* @param s a Java string containing, a possibly signed, value to assign to
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302 |
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* this.
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303 |
|
|
* @param rdx the base in which the symbols, in s, are represented.
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304 |
|
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* @return 0 if the entire string is a valid number in base rdx. Otherwise it
|
305 |
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* returns -1.
|
306 |
|
|
*
|
307 |
|
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* Implementation note:
|
308 |
|
|
* While the GMP library is more tolerant in what it accepts as parameter values
|
309 |
|
|
* for conversions from strings, the BigInteger code, which calls this method,
|
310 |
|
|
* ensures that the contract described in the RI's documentation is respected;
|
311 |
|
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* e.g. no white spaces in the middle, limited valid radix values, etc...
|
312 |
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*/
|
313 |
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|
JNIEXPORT jint JNICALL
|
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|
|
Java_gnu_java_math_GMP_natFromString(JNIEnv *env,
|
315 |
|
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jobject this, jstring s,
|
316 |
|
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jint rdx)
|
317 |
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{
|
318 |
|
|
#if defined(WITH_GNU_MP)
|
319 |
|
|
mpz_ptr _this;
|
320 |
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const char *_s;
|
321 |
|
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int result;
|
322 |
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|
323 |
|
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TRACE("begin");
|
324 |
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_this = (mpz_ptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
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_s = (*env)->GetStringUTFChars (env, s, NULL);
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result = mpz_set_str (_this, _s, (int)rdx);
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JCL_free_cstring (env, s, _s);
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TRACE("end");
|
329 |
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return (result);
|
330 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
331 |
|
|
(void) this;
|
332 |
|
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(void) s;
|
333 |
|
|
(void) rdx;
|
334 |
|
|
throw_config_exception(env);
|
335 |
|
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return (-1);
|
336 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
337 |
|
|
}
|
338 |
|
|
|
339 |
|
|
/*
|
340 |
|
|
* @param this an instance of NativeMPI. On exit, this will have the value
|
341 |
|
|
* represented by the m Java byte array (most significant byte at
|
342 |
|
|
* index position 0). It will be positive, or negative, depending on
|
343 |
|
|
* the value of isnegative.
|
344 |
|
|
* @param m a Java byte array containing the byte representation of the
|
345 |
|
|
* absolute value (most significant byte being at index position 0)
|
346 |
|
|
* to assign to this.
|
347 |
|
|
* @param isnegative true if this should be negative and false if it should
|
348 |
|
|
* be positive.
|
349 |
|
|
*/
|
350 |
|
|
JNIEXPORT void JNICALL
|
351 |
|
|
Java_gnu_java_math_GMP_natFromSignedMagnitude(JNIEnv *env,
|
352 |
|
|
jobject this,
|
353 |
|
|
jbyteArray m,
|
354 |
|
|
jboolean isnegative)
|
355 |
|
|
{
|
356 |
|
|
#if defined(WITH_GNU_MP)
|
357 |
|
|
mpz_ptr _this;
|
358 |
|
|
jbyte *_m;
|
359 |
|
|
int mlength, i;
|
360 |
|
|
|
361 |
|
|
TRACE("begin");
|
362 |
|
|
_this = (mpz_ptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
|
363 |
|
|
_m = (*env)->GetByteArrayElements (env, m, NULL);
|
364 |
|
|
mlength = (*env)->GetArrayLength (env, m);
|
365 |
|
|
mpz_set_ui (_this, 0);
|
366 |
|
|
for (i = 0; i < mlength; i++)
|
367 |
|
|
{
|
368 |
|
|
mpz_mul_2exp (_this, _this, 8);
|
369 |
|
|
mpz_add_ui (_this, _this, (unsigned long)(_m[i] & 0xFF));
|
370 |
|
|
}
|
371 |
|
|
(*env)->ReleaseByteArrayElements (env, m, _m, JNI_ABORT);
|
372 |
|
|
if (isnegative == JNI_TRUE)
|
373 |
|
|
{
|
374 |
|
|
mpz_neg (_this, _this);
|
375 |
|
|
}
|
376 |
|
|
TRACE("end");
|
377 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
378 |
|
|
(void) this;
|
379 |
|
|
(void) m;
|
380 |
|
|
(void) isnegative;
|
381 |
|
|
throw_config_exception(env);
|
382 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
383 |
|
|
}
|
384 |
|
|
|
385 |
|
|
/*
|
386 |
|
|
* @param this an instance of NativeMPI.
|
387 |
|
|
* @param n the base in which to represent this.
|
388 |
|
|
* @return the Java string representing the value of this in base n.
|
389 |
|
|
*/
|
390 |
|
|
JNIEXPORT jstring JNICALL
|
391 |
|
|
Java_gnu_java_math_GMP_natToString(JNIEnv *env, jobject this,
|
392 |
|
|
jint n)
|
393 |
|
|
{
|
394 |
|
|
#if defined(WITH_GNU_MP)
|
395 |
|
|
mpz_srcptr _this;
|
396 |
|
|
char *cstr;
|
397 |
|
|
jstring result;
|
398 |
|
|
|
399 |
|
|
TRACE("begin");
|
400 |
|
|
_this = (mpz_srcptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
|
401 |
|
|
cstr = mpz_get_str (NULL, (int)n, _this);
|
402 |
|
|
result = (*env)->NewStringUTF (env, cstr);
|
403 |
|
|
free (cstr);
|
404 |
|
|
TRACE("end");
|
405 |
|
|
return (result);
|
406 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
407 |
|
|
(void) this;
|
408 |
|
|
(void) n;
|
409 |
|
|
throw_config_exception(env);
|
410 |
|
|
return (NULL);
|
411 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
412 |
|
|
}
|
413 |
|
|
|
414 |
|
|
/*
|
415 |
|
|
* @param this a non-ZERO instance of NativeMPI.
|
416 |
|
|
*
|
417 |
|
|
* output:
|
418 |
|
|
* @param r a Java byte array which shall contain the byte representation of
|
419 |
|
|
* this.
|
420 |
|
|
*/
|
421 |
|
|
JNIEXPORT void JNICALL
|
422 |
|
|
Java_gnu_java_math_GMP_natToByteArray(JNIEnv *env,
|
423 |
|
|
jobject this,
|
424 |
|
|
jbyteArray r)
|
425 |
|
|
{
|
426 |
|
|
#if defined(WITH_GNU_MP)
|
427 |
|
|
mpz_srcptr _this;
|
428 |
|
|
mpz_t _w; /* a temporary work mpi */
|
429 |
|
|
jbyte *_r;
|
430 |
|
|
int rlength, sign, i;
|
431 |
|
|
unsigned long b;
|
432 |
|
|
|
433 |
|
|
TRACE("begin");
|
434 |
|
|
_this = (mpz_srcptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
|
435 |
|
|
_r = (*env)->GetByteArrayElements (env, r, NULL);
|
436 |
|
|
rlength = (*env)->GetArrayLength (env, r);
|
437 |
|
|
mpz_init (_w);
|
438 |
|
|
/* if this is negative set w to its 2's complement otherwise use as is. */
|
439 |
|
|
sign = mpz_sgn (_this);
|
440 |
|
|
if (sign == 1)
|
441 |
|
|
{
|
442 |
|
|
mpz_set (_w, _this);
|
443 |
|
|
}
|
444 |
|
|
else
|
445 |
|
|
{
|
446 |
|
|
mpz_neg (_w, _this);
|
447 |
|
|
mpz_sub_ui (_w, _w, 1);
|
448 |
|
|
}
|
449 |
|
|
/* _w SHOULD be >= 0.
|
450 |
|
|
* start filling the array starting from the least significant byte. */
|
451 |
|
|
for (i = rlength; --i >= 0; )
|
452 |
|
|
{
|
453 |
|
|
b = mpz_tdiv_q_ui (_w, _w, 256);
|
454 |
|
|
b = (sign == -1) ? ~b : b;
|
455 |
|
|
_r[i] = (unsigned long)(b & 0xFF);
|
456 |
|
|
}
|
457 |
|
|
(*env)->ReleaseByteArrayElements (env, r, _r, JNI_COMMIT);
|
458 |
|
|
/* if _w > 0 the byte array was short. */
|
459 |
|
|
if (mpz_cmp_ui (_w, 0) > 0)
|
460 |
|
|
{
|
461 |
|
|
TRACE("WARNING: byte array is too short");
|
462 |
|
|
}
|
463 |
|
|
mpz_clear (_w);
|
464 |
|
|
TRACE("end");
|
465 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
466 |
|
|
(void) this;
|
467 |
|
|
(void) r;
|
468 |
|
|
throw_config_exception(env);
|
469 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
470 |
|
|
}
|
471 |
|
|
|
472 |
|
|
/*
|
473 |
|
|
* @param this an instance of NativeMPI.
|
474 |
|
|
* @return the "int" value (least significant 32 bits) of the absolute value
|
475 |
|
|
* of this NativeMPI. The calling code MUST handle the sign. We do
|
476 |
|
|
* this so we can use the same method when computing the "long" value
|
477 |
|
|
* as well.
|
478 |
|
|
*/
|
479 |
|
|
JNIEXPORT jint JNICALL
|
480 |
|
|
Java_gnu_java_math_GMP_natAbsIntValue(JNIEnv *env,
|
481 |
|
|
jobject this)
|
482 |
|
|
{
|
483 |
|
|
#if defined(WITH_GNU_MP)
|
484 |
|
|
mpz_srcptr _this;
|
485 |
|
|
|
486 |
|
|
TRACE("begin");
|
487 |
|
|
_this = (mpz_srcptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
|
488 |
|
|
TRACE("end");
|
489 |
|
|
return ((jint)mpz_get_ui (_this));
|
490 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
491 |
|
|
(void) s;
|
492 |
|
|
throw_config_exception(env);
|
493 |
|
|
return (-1);
|
494 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
495 |
|
|
}
|
496 |
|
|
|
497 |
|
|
/*
|
498 |
|
|
* @param this an instance of NativeMPI.
|
499 |
|
|
* @return the, eventually truncated, double value of this NativeMPI.
|
500 |
|
|
*/
|
501 |
|
|
JNIEXPORT jdouble JNICALL
|
502 |
|
|
Java_gnu_java_math_GMP_natDoubleValue(JNIEnv *env,
|
503 |
|
|
jobject this)
|
504 |
|
|
{
|
505 |
|
|
#if defined(WITH_GNU_MP)
|
506 |
|
|
mpz_srcptr _this;
|
507 |
|
|
|
508 |
|
|
TRACE("begin");
|
509 |
|
|
_this = (mpz_srcptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
|
510 |
|
|
TRACE("end");
|
511 |
|
|
return ((jdouble)mpz_get_d (_this));
|
512 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
513 |
|
|
(void) this;
|
514 |
|
|
throw_config_exception(env);
|
515 |
|
|
return (0.0);
|
516 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
517 |
|
|
}
|
518 |
|
|
|
519 |
|
|
/*
|
520 |
|
|
* @param this a NativeMPI instance.
|
521 |
|
|
* @param x an instance of NativeMPI's Pointer.
|
522 |
|
|
* @return -1, 0, +1 if x is respectively less than, equal to, or greater
|
523 |
|
|
* than y.
|
524 |
|
|
*/
|
525 |
|
|
JNIEXPORT jint JNICALL
|
526 |
|
|
Java_gnu_java_math_GMP_natCompare(JNIEnv *env, jobject this,
|
527 |
|
|
jobject x)
|
528 |
|
|
{
|
529 |
|
|
#if defined(WITH_GNU_MP)
|
530 |
|
|
mpz_ptr _this, _x;
|
531 |
|
|
int res;
|
532 |
|
|
|
533 |
|
|
TRACE("begin");
|
534 |
|
|
_this = (mpz_ptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
|
535 |
|
|
_x = (mpz_ptr)JCL_GetRawData (env, x);
|
536 |
|
|
res = mpz_cmp (_this, _x);
|
537 |
|
|
TRACE("end");
|
538 |
|
|
if (res == 0)
|
539 |
|
|
return ((jint)0);
|
540 |
|
|
else if (res < 0)
|
541 |
|
|
return ((jint)-1);
|
542 |
|
|
else
|
543 |
|
|
return ((jint)1);
|
544 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
545 |
|
|
(void) x;
|
546 |
|
|
(void) y;
|
547 |
|
|
throw_config_exception(env);
|
548 |
|
|
return (0);
|
549 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
550 |
|
|
}
|
551 |
|
|
|
552 |
|
|
/*
|
553 |
|
|
* @param this an instance of NativeMPI.
|
554 |
|
|
* @param x an instance of NativeMPI's Pointer.
|
555 |
|
|
*
|
556 |
|
|
* output:
|
557 |
|
|
* @param r a NativeMPI's Pointer such that r = this + x.
|
558 |
|
|
*/
|
559 |
|
|
JNIEXPORT void JNICALL
|
560 |
|
|
Java_gnu_java_math_GMP_natAdd(JNIEnv *env, jobject this,
|
561 |
|
|
jobject x, jobject r)
|
562 |
|
|
{
|
563 |
|
|
#if defined(WITH_GNU_MP)
|
564 |
|
|
mpz_srcptr _this, _x;
|
565 |
|
|
mpz_ptr _r;
|
566 |
|
|
|
567 |
|
|
TRACE("begin");
|
568 |
|
|
_this = (mpz_srcptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
|
569 |
|
|
_x = (mpz_srcptr)JCL_GetRawData (env, x);
|
570 |
|
|
_r = (mpz_ptr)JCL_GetRawData (env, r);
|
571 |
|
|
mpz_add (_r, _this, _x);
|
572 |
|
|
TRACE("end");
|
573 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
574 |
|
|
(void) this;
|
575 |
|
|
(void) x;
|
576 |
|
|
(void) r;
|
577 |
|
|
throw_config_exception(env);
|
578 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
579 |
|
|
}
|
580 |
|
|
|
581 |
|
|
/*
|
582 |
|
|
* @param this an instance of NativeMPI.
|
583 |
|
|
* @param x an instance of NativeMPI's Pointer.
|
584 |
|
|
*
|
585 |
|
|
* output:
|
586 |
|
|
* @param r a NativeMPI's Pointer such that r = this - x.
|
587 |
|
|
*/
|
588 |
|
|
JNIEXPORT void JNICALL
|
589 |
|
|
Java_gnu_java_math_GMP_natSubtract(JNIEnv *env, jobject this,
|
590 |
|
|
jobject x, jobject r)
|
591 |
|
|
{
|
592 |
|
|
#if defined(WITH_GNU_MP)
|
593 |
|
|
mpz_srcptr _this, _x;
|
594 |
|
|
mpz_ptr _r;
|
595 |
|
|
|
596 |
|
|
TRACE("begin");
|
597 |
|
|
_this = (mpz_srcptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
|
598 |
|
|
_x = (mpz_srcptr)JCL_GetRawData (env, x);
|
599 |
|
|
_r = (mpz_ptr)JCL_GetRawData (env, r);
|
600 |
|
|
mpz_sub (_r, _this, _x);
|
601 |
|
|
TRACE("end");
|
602 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
603 |
|
|
(void) this;
|
604 |
|
|
(void) x;
|
605 |
|
|
(void) r;
|
606 |
|
|
throw_config_exception(env);
|
607 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
608 |
|
|
}
|
609 |
|
|
|
610 |
|
|
/*
|
611 |
|
|
* @param this an instance of NativeMPI.
|
612 |
|
|
* @param x an instance of NativeMPI's Pointer.
|
613 |
|
|
*
|
614 |
|
|
* output:
|
615 |
|
|
* @param r a NativeMPI's Pointer such that r = this * x.
|
616 |
|
|
*/
|
617 |
|
|
JNIEXPORT void JNICALL
|
618 |
|
|
Java_gnu_java_math_GMP_natMultiply(JNIEnv *env, jobject this,
|
619 |
|
|
jobject x, jobject r)
|
620 |
|
|
{
|
621 |
|
|
#if defined(WITH_GNU_MP)
|
622 |
|
|
mpz_srcptr _this, _x;
|
623 |
|
|
mpz_ptr _r;
|
624 |
|
|
|
625 |
|
|
TRACE("begin");
|
626 |
|
|
_this = (mpz_srcptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
|
627 |
|
|
_x = (mpz_srcptr)JCL_GetRawData (env, x);
|
628 |
|
|
_r = (mpz_ptr)JCL_GetRawData (env, r);
|
629 |
|
|
mpz_mul (_r, _this, _x);
|
630 |
|
|
TRACE("end");
|
631 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
632 |
|
|
(void) this;
|
633 |
|
|
(void) x;
|
634 |
|
|
(void) r;
|
635 |
|
|
throw_config_exception(env);
|
636 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
637 |
|
|
}
|
638 |
|
|
|
639 |
|
|
/*
|
640 |
|
|
* @param this an instance of NativeMPI.
|
641 |
|
|
* @param x an instance of NativeMPI's Pointer.
|
642 |
|
|
*
|
643 |
|
|
* output:
|
644 |
|
|
* @param r a NativeMPI's Pointer such that r = this div x.
|
645 |
|
|
*/
|
646 |
|
|
JNIEXPORT void JNICALL
|
647 |
|
|
Java_gnu_java_math_GMP_natQuotient(JNIEnv *env, jobject this,
|
648 |
|
|
jobject x, jobject r)
|
649 |
|
|
{
|
650 |
|
|
#if defined(WITH_GNU_MP)
|
651 |
|
|
mpz_srcptr _this, _x;
|
652 |
|
|
mpz_ptr _r;
|
653 |
|
|
|
654 |
|
|
TRACE("begin");
|
655 |
|
|
_this = (mpz_srcptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
|
656 |
|
|
_x = (mpz_srcptr)JCL_GetRawData (env, x);
|
657 |
|
|
_r = (mpz_ptr)JCL_GetRawData (env, r);
|
658 |
|
|
mpz_tdiv_q (_r, _this, _x);
|
659 |
|
|
TRACE("end");
|
660 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
661 |
|
|
(void) this;
|
662 |
|
|
(void) x;
|
663 |
|
|
(void) r;
|
664 |
|
|
throw_config_exception(env);
|
665 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
666 |
|
|
}
|
667 |
|
|
|
668 |
|
|
/*
|
669 |
|
|
* @param this an instance of NativeMPI.
|
670 |
|
|
* @param x an instance of NativeMPI's Pointer.
|
671 |
|
|
*
|
672 |
|
|
* output:
|
673 |
|
|
* @param r a NativeMPI's Pointer such that r = this mod x.
|
674 |
|
|
*/
|
675 |
|
|
JNIEXPORT void JNICALL
|
676 |
|
|
Java_gnu_java_math_GMP_natRemainder(JNIEnv *env, jobject this,
|
677 |
|
|
jobject x, jobject r)
|
678 |
|
|
{
|
679 |
|
|
#if defined(WITH_GNU_MP)
|
680 |
|
|
mpz_srcptr _this, _x;
|
681 |
|
|
mpz_ptr _r;
|
682 |
|
|
|
683 |
|
|
TRACE("begin");
|
684 |
|
|
_this = (mpz_srcptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
|
685 |
|
|
_x = (mpz_srcptr)JCL_GetRawData (env, x);
|
686 |
|
|
_r = (mpz_ptr)JCL_GetRawData (env, r);
|
687 |
|
|
mpz_tdiv_r (_r, _this, _x);
|
688 |
|
|
TRACE("end");
|
689 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
690 |
|
|
(void) this;
|
691 |
|
|
(void) x;
|
692 |
|
|
(void) r;
|
693 |
|
|
throw_config_exception(env);
|
694 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
695 |
|
|
}
|
696 |
|
|
|
697 |
|
|
/*
|
698 |
|
|
* @param this an instance of NativeMPI.
|
699 |
|
|
* @param x an instance of NativeMPI's Pointer.
|
700 |
|
|
*
|
701 |
|
|
* output:
|
702 |
|
|
* @param q a NativeMPI's Pointer such that q = this div x.
|
703 |
|
|
* @param r a NativeMPI's Pointer such that r = this mod x.
|
704 |
|
|
*/
|
705 |
|
|
JNIEXPORT void JNICALL
|
706 |
|
|
Java_gnu_java_math_GMP_natQuotientAndRemainder(JNIEnv *env,
|
707 |
|
|
jobject this,
|
708 |
|
|
jobject x,
|
709 |
|
|
jobject q,
|
710 |
|
|
jobject r)
|
711 |
|
|
{
|
712 |
|
|
#if defined(WITH_GNU_MP)
|
713 |
|
|
mpz_srcptr _this, _x;
|
714 |
|
|
mpz_ptr _q, _r;
|
715 |
|
|
|
716 |
|
|
TRACE("begin");
|
717 |
|
|
_this = (mpz_srcptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
|
718 |
|
|
_x = (mpz_srcptr)JCL_GetRawData (env, x);
|
719 |
|
|
_q = (mpz_ptr)JCL_GetRawData (env, q);
|
720 |
|
|
_r = (mpz_ptr)JCL_GetRawData (env, r);
|
721 |
|
|
mpz_tdiv_qr (_q, _r, _this, _x);
|
722 |
|
|
TRACE("end");
|
723 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
724 |
|
|
(void) this;
|
725 |
|
|
(void) x;
|
726 |
|
|
(void) q;
|
727 |
|
|
(void) r;
|
728 |
|
|
throw_config_exception(env);
|
729 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
730 |
|
|
}
|
731 |
|
|
|
732 |
|
|
/*
|
733 |
|
|
* @param this an instance of NativeMPI.
|
734 |
|
|
* @param x an instance of NativeMPI's Pointer.
|
735 |
|
|
*
|
736 |
|
|
* output:
|
737 |
|
|
* @param r a NativeMPI's Pointer such that r = this mod x.
|
738 |
|
|
*/
|
739 |
|
|
JNIEXPORT void JNICALL
|
740 |
|
|
Java_gnu_java_math_GMP_natModulo(JNIEnv *env, jobject this,
|
741 |
|
|
jobject x, jobject r)
|
742 |
|
|
{
|
743 |
|
|
#if defined(WITH_GNU_MP)
|
744 |
|
|
mpz_srcptr _this, _x;
|
745 |
|
|
mpz_ptr _r;
|
746 |
|
|
|
747 |
|
|
TRACE("begin");
|
748 |
|
|
_this = (mpz_srcptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
|
749 |
|
|
_x = (mpz_srcptr)JCL_GetRawData (env, x);
|
750 |
|
|
_r = (mpz_ptr)JCL_GetRawData (env, r);
|
751 |
|
|
mpz_mod (_r, _this, _x);
|
752 |
|
|
TRACE("end");
|
753 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
754 |
|
|
(void) this;
|
755 |
|
|
(void) x;
|
756 |
|
|
(void) r;
|
757 |
|
|
throw_config_exception(env);
|
758 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
759 |
|
|
}
|
760 |
|
|
|
761 |
|
|
/*
|
762 |
|
|
* @param this an instance of NativeMPI.
|
763 |
|
|
* @param n a non-negative number to raise this to.
|
764 |
|
|
*
|
765 |
|
|
* output:
|
766 |
|
|
* @param r a NativeMPI's Pointer such that r = this ** n.
|
767 |
|
|
*/
|
768 |
|
|
JNIEXPORT void JNICALL
|
769 |
|
|
Java_gnu_java_math_GMP_natPow(JNIEnv *env, jobject this,
|
770 |
|
|
jint n, jobject r)
|
771 |
|
|
{
|
772 |
|
|
#if defined(WITH_GNU_MP)
|
773 |
|
|
mpz_srcptr _this;
|
774 |
|
|
mpz_ptr _r;
|
775 |
|
|
|
776 |
|
|
TRACE("begin");
|
777 |
|
|
_this = (mpz_srcptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
|
778 |
|
|
_r = (mpz_ptr)JCL_GetRawData (env, r);
|
779 |
|
|
mpz_pow_ui (_r, _this, (unsigned long)n);
|
780 |
|
|
TRACE("end");
|
781 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
782 |
|
|
(void) this;
|
783 |
|
|
(void) n;
|
784 |
|
|
(void) r;
|
785 |
|
|
throw_config_exception(env);
|
786 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
787 |
|
|
}
|
788 |
|
|
|
789 |
|
|
/*
|
790 |
|
|
* @param this an instance of NativeMPI.
|
791 |
|
|
* @param e an instance of NativeMPI's Pointer.
|
792 |
|
|
* @param m another instance of NativeMPI's Pointer.
|
793 |
|
|
*
|
794 |
|
|
* output:
|
795 |
|
|
* @param r a NativeMPI's Pointer such that r = (this**e) mod m.
|
796 |
|
|
*
|
797 |
|
|
* @throws java.lang.ArithmeticException if e is negative and (1 / this) mod m
|
798 |
|
|
* has no multiplicative inverse.
|
799 |
|
|
*/
|
800 |
|
|
JNIEXPORT void JNICALL
|
801 |
|
|
Java_gnu_java_math_GMP_natModPow(JNIEnv *env, jobject this,
|
802 |
|
|
jobject e, jobject m,
|
803 |
|
|
jobject r)
|
804 |
|
|
{
|
805 |
|
|
#if defined(WITH_GNU_MP)
|
806 |
|
|
mpz_srcptr _this, _e, _m;
|
807 |
|
|
mpz_ptr _r;
|
808 |
|
|
|
809 |
|
|
TRACE("begin");
|
810 |
|
|
_this = (mpz_srcptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
|
811 |
|
|
_e = (mpz_srcptr)JCL_GetRawData (env, e);
|
812 |
|
|
_m = (mpz_srcptr)JCL_GetRawData (env, m);
|
813 |
|
|
_r = (mpz_ptr)JCL_GetRawData (env, r);
|
814 |
|
|
/* the documentation of mpz_powm(rop, b, e, m) states that it: "Set rop to
|
815 |
|
|
* (b raised to e) modulo m. Negative e is supported if an inverse b^-1 mod m
|
816 |
|
|
* exists.... If an inverse doesn't exist then a divide by zero is raised."
|
817 |
|
|
* to work around this case we use the same code as in the pure java class;
|
818 |
|
|
* i.e.:
|
819 |
|
|
* if (e.isNegative())
|
820 |
|
|
* return this.modInverse(m).modPow(e.negate(), m); */
|
821 |
|
|
if (mpz_sgn (_e) == -1)
|
822 |
|
|
{
|
823 |
|
|
mpz_t _w; /* a temporary work mpi */
|
824 |
|
|
const int res = mpz_invert (_r, _this, _m);
|
825 |
|
|
if (res == 0)
|
826 |
|
|
{
|
827 |
|
|
JCL_ThrowException (env, "java/lang/ArithmeticException",
|
828 |
|
|
"No multiplicative inverse modulo the designated number exists");
|
829 |
|
|
}
|
830 |
|
|
mpz_init (_w);
|
831 |
|
|
mpz_neg (_w, _e);
|
832 |
|
|
mpz_powm (_r, _r, _w, _m);
|
833 |
|
|
mpz_clear (_w);
|
834 |
|
|
}
|
835 |
|
|
else
|
836 |
|
|
{
|
837 |
|
|
mpz_powm (_r, _this, _e, _m);
|
838 |
|
|
}
|
839 |
|
|
|
840 |
|
|
while (mpz_sgn (_r) == -1)
|
841 |
|
|
{
|
842 |
|
|
mpz_add (_r, _r, _m);
|
843 |
|
|
}
|
844 |
|
|
TRACE("end");
|
845 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
846 |
|
|
(void) this;
|
847 |
|
|
(void) e;
|
848 |
|
|
(void) m;
|
849 |
|
|
(void) r;
|
850 |
|
|
throw_config_exception(env);
|
851 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
852 |
|
|
}
|
853 |
|
|
|
854 |
|
|
/*
|
855 |
|
|
* @param this an instance of NativeMPI.
|
856 |
|
|
* @param m an instance of NativeMPI's Pointer.
|
857 |
|
|
*
|
858 |
|
|
* output:
|
859 |
|
|
* @param r a NativeMPI's Pointer such that r = (1 / this) mod m.
|
860 |
|
|
* @throws java.lang.ArithmeticException if (1 / this) mod m has no
|
861 |
|
|
* multiplicative inverse.
|
862 |
|
|
*/
|
863 |
|
|
JNIEXPORT void JNICALL
|
864 |
|
|
Java_gnu_java_math_GMP_natModInverse(JNIEnv *env,
|
865 |
|
|
jobject this,
|
866 |
|
|
jobject m, jobject r)
|
867 |
|
|
{
|
868 |
|
|
#if defined(WITH_GNU_MP)
|
869 |
|
|
mpz_srcptr _this, _m;
|
870 |
|
|
mpz_ptr _r;
|
871 |
|
|
int res;
|
872 |
|
|
|
873 |
|
|
TRACE("begin");
|
874 |
|
|
_this = (mpz_srcptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
|
875 |
|
|
_m = (mpz_srcptr)JCL_GetRawData (env, m);
|
876 |
|
|
_r = (mpz_ptr)JCL_GetRawData (env, r);
|
877 |
|
|
res = mpz_invert (_r, _this, _m);
|
878 |
|
|
if (res == 0)
|
879 |
|
|
{
|
880 |
|
|
JCL_ThrowException (env, "java/lang/ArithmeticException",
|
881 |
|
|
"No multiplicative inverse modulo the designated number exists");
|
882 |
|
|
}
|
883 |
|
|
|
884 |
|
|
while (mpz_sgn (_r) == -1)
|
885 |
|
|
{
|
886 |
|
|
mpz_add (_r, _r, _m);
|
887 |
|
|
}
|
888 |
|
|
TRACE("end");
|
889 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
890 |
|
|
(void) this;
|
891 |
|
|
(void) x;
|
892 |
|
|
(void) r;
|
893 |
|
|
throw_config_exception(env);
|
894 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
895 |
|
|
}
|
896 |
|
|
|
897 |
|
|
/*
|
898 |
|
|
* @param this an instance of NativeMPI.
|
899 |
|
|
* @param x an instance of NativeMPI's Pointer.
|
900 |
|
|
*
|
901 |
|
|
* output:
|
902 |
|
|
* @param r a NativeMPI's Pointer such that r is the GCD of this and x.
|
903 |
|
|
*/
|
904 |
|
|
JNIEXPORT void JNICALL
|
905 |
|
|
Java_gnu_java_math_GMP_natGCD(JNIEnv *env, jobject this,
|
906 |
|
|
jobject x, jobject r)
|
907 |
|
|
{
|
908 |
|
|
#if defined(WITH_GNU_MP)
|
909 |
|
|
mpz_srcptr _this, _x;
|
910 |
|
|
mpz_ptr _r;
|
911 |
|
|
|
912 |
|
|
TRACE("begin");
|
913 |
|
|
_this = (mpz_srcptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
|
914 |
|
|
_x = (mpz_srcptr)JCL_GetRawData (env, x);
|
915 |
|
|
_r = (mpz_ptr)JCL_GetRawData (env, r);
|
916 |
|
|
mpz_gcd (_r, _this, _x);
|
917 |
|
|
TRACE("end");
|
918 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
919 |
|
|
(void) this;
|
920 |
|
|
(void) x;
|
921 |
|
|
(void) r;
|
922 |
|
|
throw_config_exception(env);
|
923 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
924 |
|
|
}
|
925 |
|
|
|
926 |
|
|
/*
|
927 |
|
|
* @param this an instance of NativeMPI.
|
928 |
|
|
* @param n number of Miller-Rabin tests to conduct.
|
929 |
|
|
* @return 2 if this is definitely prime. Returns 1 if this is probably prime
|
930 |
|
|
* (without being certain). Finally, returns 0 if this is definitely
|
931 |
|
|
* composite.
|
932 |
|
|
*/
|
933 |
|
|
JNIEXPORT jint JNICALL
|
934 |
|
|
Java_gnu_java_math_GMP_natTestPrimality(JNIEnv *env,
|
935 |
|
|
jobject this, jint n)
|
936 |
|
|
{
|
937 |
|
|
#if defined(WITH_GNU_MP)
|
938 |
|
|
mpz_srcptr _this;
|
939 |
|
|
|
940 |
|
|
TRACE("begin");
|
941 |
|
|
_this = (mpz_srcptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
|
942 |
|
|
TRACE("end");
|
943 |
|
|
return ((jint)mpz_probab_prime_p (_this, (int)n));
|
944 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
945 |
|
|
(void) this;
|
946 |
|
|
(void) n;
|
947 |
|
|
throw_config_exception(env);
|
948 |
|
|
return (0);
|
949 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
950 |
|
|
}
|
951 |
|
|
|
952 |
|
|
/*
|
953 |
|
|
* @param this an instance of NativeMPI.
|
954 |
|
|
* @param n the non-negative number of positions to shift right this by.
|
955 |
|
|
*
|
956 |
|
|
* output:
|
957 |
|
|
* @param r a NativeMPI's Pointer such that r = this * 2**n.
|
958 |
|
|
*/
|
959 |
|
|
JNIEXPORT void JNICALL
|
960 |
|
|
Java_gnu_java_math_GMP_natShiftLeft(JNIEnv *env, jobject this,
|
961 |
|
|
jint n, jobject r)
|
962 |
|
|
{
|
963 |
|
|
#if defined(WITH_GNU_MP)
|
964 |
|
|
mpz_srcptr _this;
|
965 |
|
|
mpz_ptr _r;
|
966 |
|
|
|
967 |
|
|
TRACE("begin");
|
968 |
|
|
_this = (mpz_srcptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
|
969 |
|
|
_r = (mpz_ptr)JCL_GetRawData (env, r);
|
970 |
|
|
mpz_mul_2exp (_r, _this, (unsigned long)n);
|
971 |
|
|
TRACE("end");
|
972 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
973 |
|
|
(void) this;
|
974 |
|
|
(void) n;
|
975 |
|
|
(void) r;
|
976 |
|
|
throw_config_exception(env);
|
977 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
978 |
|
|
}
|
979 |
|
|
|
980 |
|
|
/*
|
981 |
|
|
* @param this an instance of NativeMPI.
|
982 |
|
|
* @param n the non-negative number of positions to shift left this by.
|
983 |
|
|
*
|
984 |
|
|
* output:
|
985 |
|
|
* @param r a NativeMPI's Pointer such that r = floor(this / 2**n).
|
986 |
|
|
*/
|
987 |
|
|
JNIEXPORT void JNICALL
|
988 |
|
|
Java_gnu_java_math_GMP_natShiftRight(JNIEnv *env,
|
989 |
|
|
jobject this, jint n,
|
990 |
|
|
jobject r)
|
991 |
|
|
{
|
992 |
|
|
#if defined(WITH_GNU_MP)
|
993 |
|
|
mpz_srcptr _this;
|
994 |
|
|
mpz_ptr _r;
|
995 |
|
|
|
996 |
|
|
TRACE("begin");
|
997 |
|
|
_this = (mpz_srcptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
|
998 |
|
|
_r = (mpz_ptr)JCL_GetRawData (env, r);
|
999 |
|
|
mpz_fdiv_q_2exp (_r, _this, (unsigned long)n);
|
1000 |
|
|
TRACE("end");
|
1001 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
1002 |
|
|
(void) this;
|
1003 |
|
|
(void) n;
|
1004 |
|
|
(void) r;
|
1005 |
|
|
throw_config_exception(env);
|
1006 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
1007 |
|
|
}
|
1008 |
|
|
|
1009 |
|
|
/*
|
1010 |
|
|
* @param this an instance of NativeMPI.
|
1011 |
|
|
* @return the 0-based index of the lowest significant bit set (to 1) in this.
|
1012 |
|
|
*/
|
1013 |
|
|
JNIEXPORT jint JNICALL
|
1014 |
|
|
Java_gnu_java_math_GMP_natLowestSetBit(JNIEnv *env,
|
1015 |
|
|
jobject this)
|
1016 |
|
|
{
|
1017 |
|
|
#if defined(WITH_GNU_MP)
|
1018 |
|
|
mpz_srcptr _this;
|
1019 |
|
|
|
1020 |
|
|
TRACE("begin");
|
1021 |
|
|
_this = (mpz_srcptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
|
1022 |
|
|
TRACE("end");
|
1023 |
|
|
return ((jint)mpz_scan1 (_this, 0));
|
1024 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
1025 |
|
|
(void) this;
|
1026 |
|
|
throw_config_exception(env);
|
1027 |
|
|
return (-1);
|
1028 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
1029 |
|
|
}
|
1030 |
|
|
|
1031 |
|
|
/*
|
1032 |
|
|
* @param this an instance of NativeMPI.
|
1033 |
|
|
*
|
1034 |
|
|
* output:
|
1035 |
|
|
* @param r a NativeMPI's Pointer such that r = abs(x).
|
1036 |
|
|
*/
|
1037 |
|
|
JNIEXPORT void JNICALL
|
1038 |
|
|
Java_gnu_java_math_GMP_natAbs(JNIEnv *env, jobject this,
|
1039 |
|
|
jobject r)
|
1040 |
|
|
{
|
1041 |
|
|
#if defined(WITH_GNU_MP)
|
1042 |
|
|
mpz_srcptr _this;
|
1043 |
|
|
mpz_ptr _r;
|
1044 |
|
|
|
1045 |
|
|
TRACE("begin");
|
1046 |
|
|
_this = (mpz_srcptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
|
1047 |
|
|
_r = (mpz_ptr)JCL_GetRawData (env, r);
|
1048 |
|
|
mpz_abs (_r, _this);
|
1049 |
|
|
TRACE("end");
|
1050 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
1051 |
|
|
(void) this;
|
1052 |
|
|
(void) r;
|
1053 |
|
|
throw_config_exception(env);
|
1054 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
1055 |
|
|
}
|
1056 |
|
|
|
1057 |
|
|
/*
|
1058 |
|
|
* @param this an instance of NativeMPI.
|
1059 |
|
|
*
|
1060 |
|
|
* output:
|
1061 |
|
|
* @param r a NativeMPI's Pointer such that r = -x.
|
1062 |
|
|
*/
|
1063 |
|
|
JNIEXPORT void JNICALL
|
1064 |
|
|
Java_gnu_java_math_GMP_natNegate(JNIEnv *env, jobject this,
|
1065 |
|
|
jobject r)
|
1066 |
|
|
{
|
1067 |
|
|
#if defined(WITH_GNU_MP)
|
1068 |
|
|
mpz_srcptr _this;
|
1069 |
|
|
mpz_ptr _r;
|
1070 |
|
|
|
1071 |
|
|
TRACE("begin");
|
1072 |
|
|
_this = (mpz_srcptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
|
1073 |
|
|
_r = (mpz_ptr)JCL_GetRawData (env, r);
|
1074 |
|
|
mpz_neg (_r, _this);
|
1075 |
|
|
TRACE("end");
|
1076 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
1077 |
|
|
(void) this;
|
1078 |
|
|
(void) r;
|
1079 |
|
|
throw_config_exception(env);
|
1080 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
1081 |
|
|
}
|
1082 |
|
|
|
1083 |
|
|
/*
|
1084 |
|
|
* @param this an instance of NativeMPI.
|
1085 |
|
|
* @return the number of bits needed to represent this.
|
1086 |
|
|
*/
|
1087 |
|
|
JNIEXPORT jint JNICALL
|
1088 |
|
|
Java_gnu_java_math_GMP_natBitLength(JNIEnv *env, jobject this)
|
1089 |
|
|
{
|
1090 |
|
|
#if defined(WITH_GNU_MP)
|
1091 |
|
|
mpz_srcptr _this;
|
1092 |
|
|
|
1093 |
|
|
TRACE("begin");
|
1094 |
|
|
_this = (mpz_srcptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
|
1095 |
|
|
TRACE("end");
|
1096 |
|
|
return ((jint)mpz_sizeinbase (_this, 2));
|
1097 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
1098 |
|
|
(void) this;
|
1099 |
|
|
throw_config_exception(env);
|
1100 |
|
|
return (-1);
|
1101 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
1102 |
|
|
}
|
1103 |
|
|
|
1104 |
|
|
/*
|
1105 |
|
|
* @param this an instance of NativeMPI. It MUST be >= ZERO.
|
1106 |
|
|
* @return the number of bits set (to 1) in this.
|
1107 |
|
|
*/
|
1108 |
|
|
JNIEXPORT jint JNICALL
|
1109 |
|
|
Java_gnu_java_math_GMP_natSetBitCount(JNIEnv *env,
|
1110 |
|
|
jobject this)
|
1111 |
|
|
{
|
1112 |
|
|
#if defined(WITH_GNU_MP)
|
1113 |
|
|
mpz_srcptr _this;
|
1114 |
|
|
mpz_ptr _bi;
|
1115 |
|
|
unsigned long res = 0;
|
1116 |
|
|
|
1117 |
|
|
TRACE("begin");
|
1118 |
|
|
_this = (mpz_srcptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
|
1119 |
|
|
switch (mpz_sgn (_this))
|
1120 |
|
|
{
|
1121 |
|
|
case -1:
|
1122 |
|
|
/* initialize --GMP sets the value to zero. */
|
1123 |
|
|
_bi = (mpz_ptr)JCL_malloc (env, sizeof (mpz_t));
|
1124 |
|
|
mpz_init (_bi);
|
1125 |
|
|
mpz_neg (_bi, _this);
|
1126 |
|
|
res = mpz_popcount (_bi);
|
1127 |
|
|
mpz_clear (_bi);
|
1128 |
|
|
free (_bi);
|
1129 |
|
|
break;
|
1130 |
|
|
case 0:
|
1131 |
|
|
res = 0;
|
1132 |
|
|
break;
|
1133 |
|
|
case 1:
|
1134 |
|
|
res = mpz_popcount (_this);
|
1135 |
|
|
default:
|
1136 |
|
|
JCL_ThrowException (env, "java/lang/Error",
|
1137 |
|
|
"Unexpected sign value for a native MPI");
|
1138 |
|
|
}
|
1139 |
|
|
TRACE("end");
|
1140 |
|
|
return ((jint)res);
|
1141 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
1142 |
|
|
(void) this;
|
1143 |
|
|
throw_config_exception(env);
|
1144 |
|
|
return (ULONG_MAX);
|
1145 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
1146 |
|
|
}
|
1147 |
|
|
|
1148 |
|
|
/*
|
1149 |
|
|
* @param this an instance of NativeMPI.
|
1150 |
|
|
* @param x an instance of NativeMPI's Pointer.
|
1151 |
|
|
*
|
1152 |
|
|
* output:
|
1153 |
|
|
* @param r a NativeMPI's Pointer such that r = this ^ x.
|
1154 |
|
|
*/
|
1155 |
|
|
JNIEXPORT void JNICALL
|
1156 |
|
|
Java_gnu_java_math_GMP_natXor(JNIEnv *env, jobject this,
|
1157 |
|
|
jobject x, jobject r)
|
1158 |
|
|
{
|
1159 |
|
|
#if defined(WITH_GNU_MP)
|
1160 |
|
|
mpz_srcptr _this, _x;
|
1161 |
|
|
mpz_ptr _r;
|
1162 |
|
|
|
1163 |
|
|
TRACE("begin");
|
1164 |
|
|
_this = (mpz_srcptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
|
1165 |
|
|
_x = (mpz_srcptr)JCL_GetRawData (env, x);
|
1166 |
|
|
_r = (mpz_ptr)JCL_GetRawData (env, r);
|
1167 |
|
|
mpz_xor (_r, _this, _x);
|
1168 |
|
|
TRACE("end");
|
1169 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
1170 |
|
|
(void) this;
|
1171 |
|
|
(void) x;
|
1172 |
|
|
(void) r;
|
1173 |
|
|
throw_config_exception(env);
|
1174 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
1175 |
|
|
}
|
1176 |
|
|
|
1177 |
|
|
/*
|
1178 |
|
|
* @param this an instance of NativeMPI.
|
1179 |
|
|
* @param x an instance of NativeMPI's Pointer.
|
1180 |
|
|
*
|
1181 |
|
|
* output:
|
1182 |
|
|
* @param r a NativeMPI's Pointer such that r = this | x.
|
1183 |
|
|
*/
|
1184 |
|
|
JNIEXPORT void JNICALL
|
1185 |
|
|
Java_gnu_java_math_GMP_natOr(JNIEnv *env, jobject this,
|
1186 |
|
|
jobject x, jobject r)
|
1187 |
|
|
{
|
1188 |
|
|
#if defined(WITH_GNU_MP)
|
1189 |
|
|
mpz_srcptr _this, _x;
|
1190 |
|
|
mpz_ptr _r;
|
1191 |
|
|
|
1192 |
|
|
TRACE("begin");
|
1193 |
|
|
_this = (mpz_srcptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
|
1194 |
|
|
_x = (mpz_srcptr)JCL_GetRawData (env, x);
|
1195 |
|
|
_r = (mpz_ptr)JCL_GetRawData (env, r);
|
1196 |
|
|
mpz_ior (_r, _this, _x);
|
1197 |
|
|
TRACE("end");
|
1198 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
1199 |
|
|
(void) this;
|
1200 |
|
|
(void) x;
|
1201 |
|
|
(void) r;
|
1202 |
|
|
throw_config_exception(env);
|
1203 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
1204 |
|
|
}
|
1205 |
|
|
|
1206 |
|
|
/*
|
1207 |
|
|
* @param this an instance of NativeMPI.
|
1208 |
|
|
* @param x an instance of NativeMPI's Pointer.
|
1209 |
|
|
*
|
1210 |
|
|
* output:
|
1211 |
|
|
* @param r a NativeMPI's Pointer such that r = this & x.
|
1212 |
|
|
*/
|
1213 |
|
|
JNIEXPORT void JNICALL
|
1214 |
|
|
Java_gnu_java_math_GMP_natAnd(JNIEnv *env, jobject this,
|
1215 |
|
|
jobject x, jobject r)
|
1216 |
|
|
{
|
1217 |
|
|
#if defined(WITH_GNU_MP)
|
1218 |
|
|
mpz_srcptr _this, _x;
|
1219 |
|
|
mpz_ptr _r;
|
1220 |
|
|
|
1221 |
|
|
TRACE("begin");
|
1222 |
|
|
_this = (mpz_srcptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
|
1223 |
|
|
_x = (mpz_srcptr)JCL_GetRawData (env, x);
|
1224 |
|
|
_r = (mpz_ptr)JCL_GetRawData (env, r);
|
1225 |
|
|
mpz_and (_r, _this, _x);
|
1226 |
|
|
TRACE("end");
|
1227 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
1228 |
|
|
(void) this;
|
1229 |
|
|
(void) x;
|
1230 |
|
|
(void) r;
|
1231 |
|
|
throw_config_exception(env);
|
1232 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
1233 |
|
|
}
|
1234 |
|
|
|
1235 |
|
|
/*
|
1236 |
|
|
* @param this an instance of NativeMPI.
|
1237 |
|
|
* @param x an instance of NativeMPI's Pointer.
|
1238 |
|
|
*
|
1239 |
|
|
* output:
|
1240 |
|
|
* @param r a NativeMPI's Pointer such that r = this & ~x.
|
1241 |
|
|
*/
|
1242 |
|
|
JNIEXPORT void JNICALL
|
1243 |
|
|
Java_gnu_java_math_GMP_natAndNot(JNIEnv *env, jobject this,
|
1244 |
|
|
jobject x, jobject r)
|
1245 |
|
|
{
|
1246 |
|
|
#if defined(WITH_GNU_MP)
|
1247 |
|
|
mpz_srcptr _this, _x;
|
1248 |
|
|
mpz_ptr _r;
|
1249 |
|
|
|
1250 |
|
|
TRACE("begin");
|
1251 |
|
|
_this = (mpz_srcptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
|
1252 |
|
|
_x = (mpz_srcptr)JCL_GetRawData (env, x);
|
1253 |
|
|
_r = (mpz_ptr)JCL_GetRawData (env, r);
|
1254 |
|
|
mpz_com (_r, _x);
|
1255 |
|
|
mpz_and (_r, _this, _r);
|
1256 |
|
|
TRACE("end");
|
1257 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
1258 |
|
|
(void) this;
|
1259 |
|
|
(void) x;
|
1260 |
|
|
(void) r;
|
1261 |
|
|
throw_config_exception(env);
|
1262 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
1263 |
|
|
}
|
1264 |
|
|
|
1265 |
|
|
/*
|
1266 |
|
|
* @param this an instance of NativeMPI.
|
1267 |
|
|
* @param n the 0-based index position of the bit to flip in this. n MUST be
|
1268 |
|
|
* greater than, or equal to 0.
|
1269 |
|
|
*
|
1270 |
|
|
* output:
|
1271 |
|
|
* @param r a copy of this NativeMPI's Pointer with its n-th bit flipped.
|
1272 |
|
|
*/
|
1273 |
|
|
JNIEXPORT void JNICALL
|
1274 |
|
|
Java_gnu_java_math_GMP_natFlipBit(JNIEnv *env, jobject this,
|
1275 |
|
|
jint n, jobject r)
|
1276 |
|
|
{
|
1277 |
|
|
#if defined(WITH_GNU_MP)
|
1278 |
|
|
mpz_srcptr _this;
|
1279 |
|
|
mpz_ptr _r;
|
1280 |
|
|
|
1281 |
|
|
TRACE("begin");
|
1282 |
|
|
_this = (mpz_srcptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
|
1283 |
|
|
_r = (mpz_ptr)JCL_GetRawData (env, r);
|
1284 |
|
|
mpz_set (_r, _this);
|
1285 |
|
|
/* GNU MP versions earlier than 4.2 do not define this method:
|
1286 |
|
|
* mpz_combit (_r, (unsigned long)n); */
|
1287 |
|
|
if (mpz_tstbit (_r, (unsigned long)n) == 1)
|
1288 |
|
|
{
|
1289 |
|
|
mpz_clrbit (_r, (unsigned long)n);
|
1290 |
|
|
}
|
1291 |
|
|
else
|
1292 |
|
|
{
|
1293 |
|
|
mpz_setbit (_r, (unsigned long)n);
|
1294 |
|
|
}
|
1295 |
|
|
TRACE("end");
|
1296 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
1297 |
|
|
(void) this;
|
1298 |
|
|
(void) n;
|
1299 |
|
|
(void) r;
|
1300 |
|
|
throw_config_exception(env);
|
1301 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
1302 |
|
|
}
|
1303 |
|
|
|
1304 |
|
|
/*
|
1305 |
|
|
* @param this an instance of NativeMPI.
|
1306 |
|
|
* @param n the 0-based index position of the bit to test in this. n MUST be
|
1307 |
|
|
* greater than, or equal to 0.
|
1308 |
|
|
* @return +1, or -1 depending on whether the n-th bit in this is set or not
|
1309 |
|
|
* respectively.
|
1310 |
|
|
*/
|
1311 |
|
|
JNIEXPORT jint JNICALL
|
1312 |
|
|
Java_gnu_java_math_GMP_natTestBit(JNIEnv *env, jobject this,
|
1313 |
|
|
jint n)
|
1314 |
|
|
{
|
1315 |
|
|
#if defined(WITH_GNU_MP)
|
1316 |
|
|
mpz_srcptr _this;
|
1317 |
|
|
|
1318 |
|
|
TRACE("begin");
|
1319 |
|
|
_this = (mpz_srcptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
|
1320 |
|
|
TRACE("end");
|
1321 |
|
|
return ((jint)mpz_tstbit (_this, (unsigned long)n));
|
1322 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
1323 |
|
|
(void) this;
|
1324 |
|
|
(void) n;
|
1325 |
|
|
throw_config_exception(env);
|
1326 |
|
|
return (-1);
|
1327 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
1328 |
|
|
}
|
1329 |
|
|
|
1330 |
|
|
/*
|
1331 |
|
|
* @param this an instance of NativeMPI.
|
1332 |
|
|
* @param n the 0-based index position of the bit to set, or clear, in this.
|
1333 |
|
|
* n MUST be greater than, or equal to 0.
|
1334 |
|
|
* @param setIt if true, then the n-th bit in this will be set, otherwise it
|
1335 |
|
|
* will be cleared.
|
1336 |
|
|
*
|
1337 |
|
|
* output:
|
1338 |
|
|
* @param r a copy of this NativeMPI's Pointer with its n-th bit set or cleared
|
1339 |
|
|
* as requested.
|
1340 |
|
|
*/
|
1341 |
|
|
JNIEXPORT void JNICALL
|
1342 |
|
|
Java_gnu_java_math_GMP_natSetBit(JNIEnv *env, jobject this,
|
1343 |
|
|
jint n, jboolean setIt,
|
1344 |
|
|
jobject r)
|
1345 |
|
|
{
|
1346 |
|
|
#if defined(WITH_GNU_MP)
|
1347 |
|
|
mpz_srcptr _this;
|
1348 |
|
|
mpz_ptr _r;
|
1349 |
|
|
|
1350 |
|
|
TRACE("begin");
|
1351 |
|
|
_this = (mpz_srcptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
|
1352 |
|
|
_r = (mpz_ptr)JCL_GetRawData (env, r);
|
1353 |
|
|
mpz_set (_r, _this);
|
1354 |
|
|
if (setIt == JNI_TRUE)
|
1355 |
|
|
{
|
1356 |
|
|
mpz_setbit (_r, (unsigned long)n);
|
1357 |
|
|
}
|
1358 |
|
|
else
|
1359 |
|
|
{
|
1360 |
|
|
mpz_clrbit (_r, (unsigned long)n);
|
1361 |
|
|
}
|
1362 |
|
|
TRACE("end");
|
1363 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
1364 |
|
|
(void) this;
|
1365 |
|
|
(void) n;
|
1366 |
|
|
(void) setIt;
|
1367 |
|
|
(void) r;
|
1368 |
|
|
throw_config_exception(env);
|
1369 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
1370 |
|
|
}
|
1371 |
|
|
|
1372 |
|
|
/*
|
1373 |
|
|
* @param this an instance of NativeMPI.
|
1374 |
|
|
*
|
1375 |
|
|
* output:
|
1376 |
|
|
* @param r a NativeMPI's Pointer such that r = ~this.
|
1377 |
|
|
*/
|
1378 |
|
|
JNIEXPORT void JNICALL
|
1379 |
|
|
Java_gnu_java_math_GMP_natNot(JNIEnv *env, jobject this,
|
1380 |
|
|
jobject r)
|
1381 |
|
|
{
|
1382 |
|
|
#if defined(WITH_GNU_MP)
|
1383 |
|
|
mpz_srcptr _this;
|
1384 |
|
|
mpz_ptr _r;
|
1385 |
|
|
|
1386 |
|
|
TRACE("begin");
|
1387 |
|
|
_this = (mpz_srcptr)JCL_GetRawData (env, (*env)->GetObjectField (env, this, native_ptr));
|
1388 |
|
|
_r = (mpz_ptr)JCL_GetRawData (env, r);
|
1389 |
|
|
mpz_com (_r, _this);
|
1390 |
|
|
TRACE("end");
|
1391 |
|
|
#else /* !defined(WITH_GNU_MP) */
|
1392 |
|
|
(void) this;
|
1393 |
|
|
(void) r;
|
1394 |
|
|
throw_config_exception(env);
|
1395 |
|
|
#endif /* defined(WITH_GNU_MP) */
|
1396 |
|
|
}
|