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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libc/] [stdio/] [siscanf.c] - Rev 232
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/* * Copyright (c) 1990 The Regents of the University of California. * All rights reserved. * * Redistribution and use in source and binary forms are permitted * provided that the above copyright notice and this paragraph are * duplicated in all such forms and that any documentation, * advertising materials, and other materials related to such * distribution and use acknowledge that the software was developed * by the University of California, Berkeley. The name of the * University may not be used to endorse or promote products derived * from this software without specific prior written permission. * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. */ /* FUNCTION <<siscanf>>, <<fiscanf>>, <<iscanf>>---scan and format non-floating input INDEX iscanf INDEX _iscanf_r INDEX fiscanf INDEX _fiscanf_r INDEX siscanf INDEX _siscanf_r ANSI_SYNOPSIS #include <stdio.h> int iscanf(const char *<[format]>, ...); int fiscanf(FILE *<[fd]>, const char *<[format]>, ...); int siscanf(const char *<[str]>, const char *<[format]>, ...); int _iscanf_r(struct _reent *<[ptr]>, const char *<[format]>, ...); int _fiscanf_r(struct _reent *<[ptr]>, FILE *<[fd]>, const char *<[format]>, ...); int _siscanf_r(struct _reent *<[ptr]>, const char *<[str]>, const char *<[format]>, ...); TRAD_SYNOPSIS #include <stdio.h> int iscanf(<[format]> [, <[arg]>, ...]) char *<[format]>; int fiscanf(<[fd]>, <[format]> [, <[arg]>, ...]); FILE *<[fd]>; char *<[format]>; int siscanf(<[str]>, <[format]> [, <[arg]>, ...]); char *<[str]>; char *<[format]>; int _iscanf_r(<[ptr]>, <[format]> [, <[arg]>, ...]) struct _reent *<[ptr]>; char *<[format]>; int _fiscanf_r(<[ptr]>, <[fd]>, <[format]> [, <[arg]>, ...]); struct _reent *<[ptr]>; FILE *<[fd]>; char *<[format]>; int _siscanf_r(<[ptr]>, <[str]>, <[format]> [, <[arg]>, ...]); struct _reent *<[ptr]>; char *<[str]>; char *<[format]>; DESCRIPTION <<iscanf>>, <<fiscanf>>, and <<siscanf>> are the same as <<scanf>>, <<fscanf>>, and <<sscanf>> respectively, only that they restrict the available formats to non-floating-point format specifiers. The routines <<_iscanf_r>>, <<_fiscanf_r>>, and <<_siscanf_r>> are reentrant versions of <<iscanf>>, <<fiscanf>>, and <<siscanf>> that take an additional first argument pointing to a reentrancy structure. RETURNS <<iscanf>> returns the number of input fields successfully scanned, converted and stored; the return value does not include scanned fields which were not stored. If <<iscanf>> attempts to read at end-of-file, the return value is <<EOF>>. If no fields were stored, the return value is <<0>>. PORTABILITY <<iscanf>>, <<fiscanf>>, and <<siscanf>> are newlib extensions. Supporting OS subroutines required: <<close>>, <<fstat>>, <<isatty>>, <<lseek>>, <<read>>, <<sbrk>>, <<write>>. */ #include <_ansi.h> #include <reent.h> #include <stdio.h> #include <string.h> #ifdef _HAVE_STDC #include <stdarg.h> #else #include <varargs.h> #endif #include "local.h" #ifndef _REENT_ONLY #ifdef _HAVE_STDC int _DEFUN(siscanf, (str, fmt), _CONST char *str _AND _CONST char *fmt _DOTS) #else int siscanf(str, fmt, va_alist) _CONST char *str; _CONST char *fmt; va_dcl #endif { int ret; va_list ap; FILE f; f._flags = __SRD | __SSTR; f._bf._base = f._p = (unsigned char *) str; f._bf._size = f._r = strlen (str); f._read = __seofread; f._ub._base = NULL; f._lb._base = NULL; f._file = -1; /* No file. */ #ifdef _HAVE_STDC va_start (ap, fmt); #else va_start (ap); #endif ret = __ssvfiscanf_r (_REENT, &f, fmt, ap); va_end (ap); return ret; } #endif /* !_REENT_ONLY */ #ifdef _HAVE_STDC int _DEFUN(_siscanf_r, (ptr, str, fmt), struct _reent *ptr _AND _CONST char *str _AND _CONST char *fmt _DOTS) #else int _siscanf_r(ptr, str, fmt, va_alist) struct _reent *ptr; _CONST char *str; _CONST char *fmt; va_dcl #endif { int ret; va_list ap; FILE f; f._flags = __SRD | __SSTR; f._bf._base = f._p = (unsigned char *) str; f._bf._size = f._r = strlen (str); f._read = __seofread; f._ub._base = NULL; f._lb._base = NULL; f._file = -1; /* No file. */ #ifdef _HAVE_STDC va_start (ap, fmt); #else va_start (ap); #endif ret = __ssvfiscanf_r (ptr, &f, fmt, ap); va_end (ap); return ret; }
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