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freebsd-dev/include/wchar.h
David Schultz 544048ecef Add a function attribute called `__malloc_like', which informs gcc 
that the annotated function returns a pointer that doesn't alias any
extant pointer. This results in a 50%+ speedup in microbenchmarks such
as the following:

    char *cp = malloc(1), *buf = malloc(BUF);
    for (i = 0; i < BUF; i++) buf[i] = *cp;

In real programs, your mileage will vary. Note that gcc already
performs this optimization automatically for any function called
`malloc', `calloc', `strdup', or `strndup' unless -fno-builtins is
used.
2009-01-31 18:27:02 +00:00

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/*-
* Copyright (c)1999 Citrus Project,
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
/*-
* Copyright (c) 1999, 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Julian Coleman.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* $NetBSD: wchar.h,v 1.8 2000/12/22 05:31:42 itojun Exp $
*/
#ifndef _WCHAR_H_
#define _WCHAR_H_
#include <sys/cdefs.h>
#include <sys/_null.h>
#include <sys/_types.h>
#include <machine/_limits.h>
#include <_ctype.h>
#ifndef _MBSTATE_T_DECLARED
typedef __mbstate_t mbstate_t;
#define _MBSTATE_T_DECLARED
#endif
#ifndef _SIZE_T_DECLARED
typedef __size_t size_t;
#define _SIZE_T_DECLARED
#endif
#ifndef __cplusplus
#ifndef _WCHAR_T_DECLARED
typedef __wchar_t wchar_t;
#define _WCHAR_T_DECLARED
#endif
#endif
#ifndef _WINT_T_DECLARED
typedef __wint_t wint_t;
#define _WINT_T_DECLARED
#endif
#ifndef WCHAR_MIN
#define WCHAR_MIN __INT_MIN
#define WCHAR_MAX __INT_MAX
#endif
#ifndef WEOF
#define WEOF ((wint_t)-1)
#endif
struct __sFILE;
struct tm;
__BEGIN_DECLS
wint_t btowc(int);
wint_t fgetwc(struct __sFILE *);
wchar_t *
fgetws(wchar_t * __restrict, int, struct __sFILE * __restrict);
wint_t fputwc(wchar_t, struct __sFILE *);
int fputws(const wchar_t * __restrict, struct __sFILE * __restrict);
int fwide(struct __sFILE *, int);
int fwprintf(struct __sFILE * __restrict, const wchar_t * __restrict, ...);
int fwscanf(struct __sFILE * __restrict, const wchar_t * __restrict, ...);
wint_t getwc(struct __sFILE *);
wint_t getwchar(void);
size_t mbrlen(const char * __restrict, size_t, mbstate_t * __restrict);
size_t mbrtowc(wchar_t * __restrict, const char * __restrict, size_t,
mbstate_t * __restrict);
int mbsinit(const mbstate_t *);
size_t mbsrtowcs(wchar_t * __restrict, const char ** __restrict, size_t,
mbstate_t * __restrict);
wint_t putwc(wchar_t, struct __sFILE *);
wint_t putwchar(wchar_t);
int swprintf(wchar_t * __restrict, size_t n, const wchar_t * __restrict,
...);
int swscanf(const wchar_t * __restrict, const wchar_t * __restrict, ...);
wint_t ungetwc(wint_t, struct __sFILE *);
int vfwprintf(struct __sFILE * __restrict, const wchar_t * __restrict,
__va_list);
int vswprintf(wchar_t * __restrict, size_t n, const wchar_t * __restrict,
__va_list);
int vwprintf(const wchar_t * __restrict, __va_list);
size_t wcrtomb(char * __restrict, wchar_t, mbstate_t * __restrict);
wchar_t *wcscat(wchar_t * __restrict, const wchar_t * __restrict);
wchar_t *wcschr(const wchar_t *, wchar_t) __pure;
int wcscmp(const wchar_t *, const wchar_t *) __pure;
int wcscoll(const wchar_t *, const wchar_t *);
wchar_t *wcscpy(wchar_t * __restrict, const wchar_t * __restrict);
size_t wcscspn(const wchar_t *, const wchar_t *) __pure;
size_t wcsftime(wchar_t * __restrict, size_t, const wchar_t * __restrict,
const struct tm * __restrict);
size_t wcslen(const wchar_t *) __pure;
wchar_t *wcsncat(wchar_t * __restrict, const wchar_t * __restrict,
size_t);
int wcsncmp(const wchar_t *, const wchar_t *, size_t) __pure;
wchar_t *wcsncpy(wchar_t * __restrict , const wchar_t * __restrict, size_t);
wchar_t *wcspbrk(const wchar_t *, const wchar_t *) __pure;
wchar_t *wcsrchr(const wchar_t *, wchar_t) __pure;
size_t wcsrtombs(char * __restrict, const wchar_t ** __restrict, size_t,
mbstate_t * __restrict);
size_t wcsspn(const wchar_t *, const wchar_t *) __pure;
wchar_t *wcsstr(const wchar_t * __restrict, const wchar_t * __restrict)
__pure;
size_t wcsxfrm(wchar_t * __restrict, const wchar_t * __restrict, size_t);
int wctob(wint_t);
double wcstod(const wchar_t * __restrict, wchar_t ** __restrict);
wchar_t *wcstok(wchar_t * __restrict, const wchar_t * __restrict,
wchar_t ** __restrict);
long wcstol(const wchar_t * __restrict, wchar_t ** __restrict, int);
unsigned long
wcstoul(const wchar_t * __restrict, wchar_t ** __restrict, int);
wchar_t *wmemchr(const wchar_t *, wchar_t, size_t) __pure;
int wmemcmp(const wchar_t *, const wchar_t *, size_t) __pure;
wchar_t *wmemcpy(wchar_t * __restrict, const wchar_t * __restrict, size_t);
wchar_t *wmemmove(wchar_t *, const wchar_t *, size_t);
wchar_t *wmemset(wchar_t *, wchar_t, size_t);
int wprintf(const wchar_t * __restrict, ...);
int wscanf(const wchar_t * __restrict, ...);
#ifndef _STDSTREAM_DECLARED
extern struct __sFILE *__stdinp;
extern struct __sFILE *__stdoutp;
extern struct __sFILE *__stderrp;
#define _STDSTREAM_DECLARED
#endif
#define getwc(fp) fgetwc(fp)
#define getwchar() fgetwc(__stdinp)
#define putwc(wc, fp) fputwc(wc, fp)
#define putwchar(wc) fputwc(wc, __stdoutp)
#if __ISO_C_VISIBLE >= 1999
int vfwscanf(struct __sFILE * __restrict, const wchar_t * __restrict,
__va_list);
int vswscanf(const wchar_t * __restrict, const wchar_t * __restrict,
__va_list);
int vwscanf(const wchar_t * __restrict, __va_list);
float wcstof(const wchar_t * __restrict, wchar_t ** __restrict);
long double
wcstold(const wchar_t * __restrict, wchar_t ** __restrict);
#ifdef __LONG_LONG_SUPPORTED
/* LONGLONG */
long long
wcstoll(const wchar_t * __restrict, wchar_t ** __restrict, int);
/* LONGLONG */
unsigned long long
wcstoull(const wchar_t * __restrict, wchar_t ** __restrict, int);
#endif
#endif /* __ISO_C_VISIBLE >= 1999 */
#if __XSI_VISIBLE
int wcswidth(const wchar_t *, size_t);
int wcwidth(wchar_t);
#define wcwidth(_c) __wcwidth(_c)
#endif
#if __BSD_VISIBLE
wchar_t *fgetwln(struct __sFILE * __restrict, size_t * __restrict);
size_t mbsnrtowcs(wchar_t * __restrict, const char ** __restrict, size_t,
size_t, mbstate_t * __restrict);
wchar_t *wcsdup(const wchar_t *) __malloc_like;
size_t wcsnrtombs(char * __restrict, const wchar_t ** __restrict, size_t,
size_t, mbstate_t * __restrict);
size_t wcslcat(wchar_t *, const wchar_t *, size_t);
size_t wcslcpy(wchar_t *, const wchar_t *, size_t);
#endif
__END_DECLS
#endif /* !_WCHAR_H_ */
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