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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libstdc++-v3/] [src/] [c++98/] [math_stubs_float.cc] - Rev 753
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// Stub definitions for float math. // Copyright (C) 2001, 2002, 2003, 2009 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the // terms of the GNU General Public License as published by the // Free Software Foundation; either version 3, or (at your option) // any later version. // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // Under Section 7 of GPL version 3, you are granted additional // permissions described in the GCC Runtime Library Exception, version // 3.1, as published by the Free Software Foundation. // You should have received a copy of the GNU General Public License and // a copy of the GCC Runtime Library Exception along with this program; // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see // <http://www.gnu.org/licenses/>. #include <cmath> // For targets which do not have support for float versions, // we use the following crude approximations. We keep saying that we'll do // better later, but never do. extern "C" { #ifndef _GLIBCXX_HAVE_FABSF float fabsf(float x) { return (float) fabs(x); } #endif #ifndef _GLIBCXX_HAVE_ACOSF float acosf(float x) { return (float) acos(x); } #endif #ifndef _GLIBCXX_HAVE_ASINF float asinf(float x) { return (float) asin(x); } #endif #ifndef _GLIBCXX_HAVE_ATANF float atanf(float x) { return (float) atan(x); } #endif #ifndef _GLIBCXX_HAVE_ATAN2F float atan2f(float x, float y) { return (float) atan2(x, y); } #endif #ifndef _GLIBCXX_HAVE_CEILF float ceilf(float x) { return (float) ceil(x); } #endif #ifndef _GLIBCXX_HAVE_COSF float cosf(float x) { return (float) cos(x); } #endif #ifndef _GLIBCXX_HAVE_COSHF float coshf(float x) { return (float) cosh(x); } #endif #ifndef _GLIBCXX_HAVE_EXPF float expf(float x) { return (float) exp(x); } #endif #ifndef _GLIBCXX_HAVE_FLOORF float floorf(float x) { return (float) floor(x); } #endif #ifndef _GLIBCXX_HAVE_FMODF float fmodf(float x, float y) { return (float) fmod(x, y); } #endif #ifndef _GLIBCXX_HAVE_FREXPF float frexpf(float x, int *exp) { return (float) frexp(x, exp); } #endif #ifndef _GLIBCXX_HAVE_SQRTF float sqrtf(float x) { return (float) sqrt(x); } #endif #ifndef _GLIBCXX_HAVE_HYPOTF float hypotf(float x, float y) { float s = fabsf(x) + fabsf(y); if (s == 0.0F) return s; x /= s; y /= s; return s * sqrtf(x * x + y * y); } #endif #ifndef _GLIBCXX_HAVE_LDEXPF float ldexpf(float x, int exp) { return (float) ldexp(x, exp); } #endif #ifndef _GLIBCXX_HAVE_LOGF float logf(float x) { return (float) log(x); } #endif #ifndef _GLIBCXX_HAVE_LOG10F float log10f(float x) { return (float) log10(x); } #endif #ifndef _GLIBCXX_HAVE_MODFF float modff(float x, float *iptr) { double result, temp; result = modf(x, &temp); *iptr = (float) temp; return (float) result; } #endif #ifndef _GLIBCXX_HAVE_POWF float powf(float x, float y) { return (float) pow(x, y); } #endif #ifndef _GLIBCXX_HAVE_SINF float sinf(float x) { return (float) sin(x); } #endif #ifndef _GLIBCXX_HAVE_SINHF float sinhf(float x) { return (float) sinh(x); } #endif #ifndef _GLIBCXX_HAVE_TANF float tanf(float x) { return (float) tan(x); } #endif #ifndef _GLIBCXX_HAVE_TANHF float tanhf(float x) { return (float) tanh(x); } #endif } // extern "C"
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