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musl/include/wchar.h

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initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
#ifndef _WCHAR_H
#define _WCHAR_H
#ifdef __cplusplus
extern "C" {
#endif
default features: make musl usable without feature test macros the old behavior of exposing nothing except plain ISO C can be obtained by defining __STRICT_ANSI__ or using a compiler option (such as -std=c99) that predefines it. the new default featureset is POSIX with XSI plus _BSD_SOURCE. any explicit feature test macros will inhibit the default. installation docs have also been updated to reflect this change.
2012-09-08 03:13:55 +00:00
#include <features.h>
use restrict everywhere it's required by c99 and/or posix 2008 to deal with the fact that the public headers may be used with pre-c99 compilers, __restrict is used in place of restrict, and defined appropriately for any supported compiler. we also avoid the form [restrict] since older versions of gcc rejected it due to a bug in the original c99 standard, and instead use the form *restrict.
2012-09-07 02:44:55 +00:00
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
#define __NEED_FILE
respect iso c namespace in stdio.h and wchar.h regarding va_list despite declaring functions that take arguments of type va_list, these headers are not permitted by the c standard to expose the definition of va_list, so an alias for the type must be used. the name __isoc_va_list was chosen to convey that the purpose of this alternate name is for iso c conformance, and to avoid the multitude of names which gcc mangles with its hideous "fixincludes" monstrosity, leading to serious header breakage if these "fixes" are run.
2013-06-26 02:26:20 +00:00
#define __NEED___isoc_va_list
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
#define __NEED_size_t
#define __NEED_wchar_t
#define __NEED_wint_t
more header fixes, minor warning fix
2011-02-15 00:33:11 +00:00
add all missing wchar functions except floating point parsers these are mostly untested and adapted directly from corresponding byte string functions and similar.
2012-03-02 04:24:45 +00:00
#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
|| defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE)
#define __NEED_locale_t
respect iso c namespace in stdio.h and wchar.h regarding va_list despite declaring functions that take arguments of type va_list, these headers are not permitted by the c standard to expose the definition of va_list, so an alias for the type must be used. the name __isoc_va_list was chosen to convey that the purpose of this alternate name is for iso c conformance, and to avoid the multitude of names which gcc mangles with its hideous "fixincludes" monstrosity, leading to serious header breakage if these "fixes" are run.
2013-06-26 02:26:20 +00:00
#define __NEED_va_list
add all missing wchar functions except floating point parsers these are mostly untested and adapted directly from corresponding byte string functions and similar.
2012-03-02 04:24:45 +00:00
#endif
more header fixes, minor warning fix
2011-02-15 00:33:11 +00:00
#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE)
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
#define __NEED_wctype_t
more header fixes, minor warning fix
2011-02-15 00:33:11 +00:00
#endif
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
#include <bits/alltypes.h>
eliminate bits/wchar.h the preprocessor can reliably determine the signedness of wchar_t. L'\0' is used for 0 in the expressions so that, if the underlying type of wchar_t is long rather than int, the promoted type of the expression will match the type of wchar_t.
2013-04-04 23:57:23 +00:00
#if L'\0'-1 > 0
#define WCHAR_MAX (0xffffffffu+L'\0')
#define WCHAR_MIN (0+L'\0')
#else
#define WCHAR_MAX (0x7fffffff+L'\0')
#define WCHAR_MIN (-1-0x7fffffff+L'\0')
#endif
fix the type of wchar_t on arm; support wchar_t varying with arch really wchar_t should never vary, but the ARM EABI defines it as an unsigned 32-bit int instead of a signed one, and gcc follows this nonsense. thus, to give a conformant environment, we have to follow (otherwise L""[0] and L'\0' would be 0U rather than 0, but the application would be unaware due to a mismatched definition for WCHAR_MIN and WCHAR_MAX, and Bad Things could happen with respect to signed/unsigned comparisons, promotions, etc.). fortunately no rules are imposed by the C standard on the relationship between wchar_t and wint_t, and WEOF has type wint_t, so we can still make wint_t always-signed and use -1 for WEOF.
2011-09-19 21:39:51 +00:00
use a common definition of NULL as 0L for C and C++ the historical mess of having different definitions for C and C++ comes from the historical C definition as (void *)0 and the fact that (void *)0 can't be used in C++ because it does not convert to other pointer types implicitly. however, using plain 0 in C++ exposed bugs in C++ programs that call variadic functions with NULL as an argument and (wrongly; this is UB) expect it to arrive as a null pointer. on 64-bit machines, the high bits end up containing junk. glibc dodges the issue by using a GCC extension __null to define NULL; this is observably non-conforming because a conforming application could observe the definition of NULL via stringizing and see that it is neither an integer constant expression with value zero nor such an expression cast to void. switching to 0L eliminates the issue and provides compatibility with broken applications, since on all musl targets, long and pointers have the same size, representation, and argument-passing convention. we could maintain separate C and C++ definitions of NULL (i.e. just use 0L on C++ and use (void *)0 on C) but after careful analysis, it seems extremely difficult for a C program to even determine whether NULL has integer or pointer type, much less depend in subtle, unintentional ways, on whether it does. C89 seems to have no way to make the distinction. on C99, the fact that (int)(void *)0 is not an integer constant expression, along with subtle VLA/sizeof semantics, can be used to make the distinction, but many compilers are non-conforming and give the wrong result to this test anyway. on C11, _Generic can trivially make the distinction, but it seems unlikely that code targetting C11 would be so backwards in caring which definition of NULL an implementation uses. as such, the simplest path of using the same definition for NULL in both C and C++ was chosen. the #undef directive was also removed so that the compiler can catch and give a warning or error on redefinition if buggy programs have defined their own versions of NULL prior to inclusion of standard headers.
2013-01-19 01:35:26 +00:00
#define NULL 0L
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
#undef WEOF
#define WEOF (-1)
typedef struct
{
unsigned __opaque1, __opaque2;
} mbstate_t;
use restrict everywhere it's required by c99 and/or posix 2008 to deal with the fact that the public headers may be used with pre-c99 compilers, __restrict is used in place of restrict, and defined appropriately for any supported compiler. we also avoid the form [restrict] since older versions of gcc rejected it due to a bug in the original c99 standard, and instead use the form *restrict.
2012-09-07 02:44:55 +00:00
wchar_t *wcscpy (wchar_t *__restrict, const wchar_t *__restrict);
wchar_t *wcsncpy (wchar_t *__restrict, const wchar_t *__restrict, size_t);
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
use restrict everywhere it's required by c99 and/or posix 2008 to deal with the fact that the public headers may be used with pre-c99 compilers, __restrict is used in place of restrict, and defined appropriately for any supported compiler. we also avoid the form [restrict] since older versions of gcc rejected it due to a bug in the original c99 standard, and instead use the form *restrict.
2012-09-07 02:44:55 +00:00
wchar_t *wcscat (wchar_t *__restrict, const wchar_t *__restrict);
wchar_t *wcsncat (wchar_t *__restrict, const wchar_t *__restrict, size_t);
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
int wcscmp (const wchar_t *, const wchar_t *);
int wcsncmp (const wchar_t *, const wchar_t *, size_t);
missing prototype for wcscoll (stub)
2011-03-29 22:30:27 +00:00
int wcscoll(const wchar_t *, const wchar_t *);
use restrict everywhere it's required by c99 and/or posix 2008 to deal with the fact that the public headers may be used with pre-c99 compilers, __restrict is used in place of restrict, and defined appropriately for any supported compiler. we also avoid the form [restrict] since older versions of gcc rejected it due to a bug in the original c99 standard, and instead use the form *restrict.
2012-09-07 02:44:55 +00:00
size_t wcsxfrm (wchar_t *__restrict, const wchar_t *__restrict, size_t n);
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
wchar_t *wcschr (const wchar_t *, wchar_t);
wchar_t *wcsrchr (const wchar_t *, wchar_t);
size_t wcscspn (const wchar_t *, const wchar_t *);
size_t wcsspn (const wchar_t *, const wchar_t *);
wchar_t *wcspbrk (const wchar_t *, const wchar_t *);
use restrict everywhere it's required by c99 and/or posix 2008 to deal with the fact that the public headers may be used with pre-c99 compilers, __restrict is used in place of restrict, and defined appropriately for any supported compiler. we also avoid the form [restrict] since older versions of gcc rejected it due to a bug in the original c99 standard, and instead use the form *restrict.
2012-09-07 02:44:55 +00:00
wchar_t *wcstok (wchar_t *__restrict, const wchar_t *__restrict, wchar_t **__restrict);
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
size_t wcslen (const wchar_t *);
use restrict everywhere it's required by c99 and/or posix 2008 to deal with the fact that the public headers may be used with pre-c99 compilers, __restrict is used in place of restrict, and defined appropriately for any supported compiler. we also avoid the form [restrict] since older versions of gcc rejected it due to a bug in the original c99 standard, and instead use the form *restrict.
2012-09-07 02:44:55 +00:00
wchar_t *wcsstr (const wchar_t *__restrict, const wchar_t *__restrict);
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
wchar_t *wcswcs (const wchar_t *, const wchar_t *);
wchar_t *wmemchr (const wchar_t *, wchar_t, size_t);
int wmemcmp (const wchar_t *, const wchar_t *, size_t);
use restrict everywhere it's required by c99 and/or posix 2008 to deal with the fact that the public headers may be used with pre-c99 compilers, __restrict is used in place of restrict, and defined appropriately for any supported compiler. we also avoid the form [restrict] since older versions of gcc rejected it due to a bug in the original c99 standard, and instead use the form *restrict.
2012-09-07 02:44:55 +00:00
wchar_t *wmemcpy (wchar_t *__restrict, const wchar_t *__restrict, size_t);
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
wchar_t *wmemmove (wchar_t *, const wchar_t *, size_t);
wchar_t *wmemset (wchar_t *, wchar_t, size_t);
wint_t btowc (int);
int wctob (wint_t);
int mbsinit (const mbstate_t *);
use restrict everywhere it's required by c99 and/or posix 2008 to deal with the fact that the public headers may be used with pre-c99 compilers, __restrict is used in place of restrict, and defined appropriately for any supported compiler. we also avoid the form [restrict] since older versions of gcc rejected it due to a bug in the original c99 standard, and instead use the form *restrict.
2012-09-07 02:44:55 +00:00
size_t mbrtowc (wchar_t *__restrict, const char *__restrict, size_t, mbstate_t *__restrict);
size_t wcrtomb (char *__restrict, wchar_t, mbstate_t *__restrict);
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
use restrict everywhere it's required by c99 and/or posix 2008 to deal with the fact that the public headers may be used with pre-c99 compilers, __restrict is used in place of restrict, and defined appropriately for any supported compiler. we also avoid the form [restrict] since older versions of gcc rejected it due to a bug in the original c99 standard, and instead use the form *restrict.
2012-09-07 02:44:55 +00:00
size_t mbrlen (const char *__restrict, size_t, mbstate_t *__restrict);
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
use restrict everywhere it's required by c99 and/or posix 2008 to deal with the fact that the public headers may be used with pre-c99 compilers, __restrict is used in place of restrict, and defined appropriately for any supported compiler. we also avoid the form [restrict] since older versions of gcc rejected it due to a bug in the original c99 standard, and instead use the form *restrict.
2012-09-07 02:44:55 +00:00
size_t mbsrtowcs (wchar_t *__restrict, const char **__restrict, size_t, mbstate_t *__restrict);
size_t wcsrtombs (char *__restrict, const wchar_t **__restrict, size_t, mbstate_t *__restrict);
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
use restrict everywhere it's required by c99 and/or posix 2008 to deal with the fact that the public headers may be used with pre-c99 compilers, __restrict is used in place of restrict, and defined appropriately for any supported compiler. we also avoid the form [restrict] since older versions of gcc rejected it due to a bug in the original c99 standard, and instead use the form *restrict.
2012-09-07 02:44:55 +00:00
float wcstof (const wchar_t *__restrict, wchar_t **__restrict);
double wcstod (const wchar_t *__restrict, wchar_t **__restrict);
long double wcstold (const wchar_t *__restrict, wchar_t **__restrict);
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
use restrict everywhere it's required by c99 and/or posix 2008 to deal with the fact that the public headers may be used with pre-c99 compilers, __restrict is used in place of restrict, and defined appropriately for any supported compiler. we also avoid the form [restrict] since older versions of gcc rejected it due to a bug in the original c99 standard, and instead use the form *restrict.
2012-09-07 02:44:55 +00:00
long wcstol (const wchar_t *__restrict, wchar_t **__restrict, int);
unsigned long wcstoul (const wchar_t *__restrict, wchar_t **__restrict, int);
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
use restrict everywhere it's required by c99 and/or posix 2008 to deal with the fact that the public headers may be used with pre-c99 compilers, __restrict is used in place of restrict, and defined appropriately for any supported compiler. we also avoid the form [restrict] since older versions of gcc rejected it due to a bug in the original c99 standard, and instead use the form *restrict.
2012-09-07 02:44:55 +00:00
long long wcstoll (const wchar_t *__restrict, wchar_t **__restrict, int);
unsigned long long wcstoull (const wchar_t *__restrict, wchar_t **__restrict, int);
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
int fwide (FILE *, int);
use restrict everywhere it's required by c99 and/or posix 2008 to deal with the fact that the public headers may be used with pre-c99 compilers, __restrict is used in place of restrict, and defined appropriately for any supported compiler. we also avoid the form [restrict] since older versions of gcc rejected it due to a bug in the original c99 standard, and instead use the form *restrict.
2012-09-07 02:44:55 +00:00
int wprintf (const wchar_t *__restrict, ...);
int fwprintf (FILE *__restrict, const wchar_t *__restrict, ...);
int swprintf (wchar_t *__restrict, size_t, const wchar_t *__restrict, ...);
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
respect iso c namespace in stdio.h and wchar.h regarding va_list despite declaring functions that take arguments of type va_list, these headers are not permitted by the c standard to expose the definition of va_list, so an alias for the type must be used. the name __isoc_va_list was chosen to convey that the purpose of this alternate name is for iso c conformance, and to avoid the multitude of names which gcc mangles with its hideous "fixincludes" monstrosity, leading to serious header breakage if these "fixes" are run.
2013-06-26 02:26:20 +00:00
int vwprintf (const wchar_t *__restrict, __isoc_va_list);
int vfwprintf (FILE *__restrict, const wchar_t *__restrict, __isoc_va_list);
int vswprintf (wchar_t *__restrict, size_t, const wchar_t *__restrict, __isoc_va_list);
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
use restrict everywhere it's required by c99 and/or posix 2008 to deal with the fact that the public headers may be used with pre-c99 compilers, __restrict is used in place of restrict, and defined appropriately for any supported compiler. we also avoid the form [restrict] since older versions of gcc rejected it due to a bug in the original c99 standard, and instead use the form *restrict.
2012-09-07 02:44:55 +00:00
int wscanf (const wchar_t *__restrict, ...);
int fwscanf (FILE *__restrict, const wchar_t *__restrict, ...);
int swscanf (const wchar_t *__restrict, const wchar_t *__restrict, ...);
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
respect iso c namespace in stdio.h and wchar.h regarding va_list despite declaring functions that take arguments of type va_list, these headers are not permitted by the c standard to expose the definition of va_list, so an alias for the type must be used. the name __isoc_va_list was chosen to convey that the purpose of this alternate name is for iso c conformance, and to avoid the multitude of names which gcc mangles with its hideous "fixincludes" monstrosity, leading to serious header breakage if these "fixes" are run.
2013-06-26 02:26:20 +00:00
int vwscanf (const wchar_t *__restrict, __isoc_va_list);
int vfwscanf (FILE *__restrict, const wchar_t *__restrict, __isoc_va_list);
int vswscanf (const wchar_t *__restrict, const wchar_t *__restrict, __isoc_va_list);
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
wint_t fgetwc (FILE *);
wint_t getwc (FILE *);
wint_t getwchar (void);
wint_t fputwc (wchar_t, FILE *);
wint_t putwc (wchar_t, FILE *);
wint_t putwchar (wchar_t);
use restrict everywhere it's required by c99 and/or posix 2008 to deal with the fact that the public headers may be used with pre-c99 compilers, __restrict is used in place of restrict, and defined appropriately for any supported compiler. we also avoid the form [restrict] since older versions of gcc rejected it due to a bug in the original c99 standard, and instead use the form *restrict.
2012-09-07 02:44:55 +00:00
wchar_t *fgetws (wchar_t *__restrict, int, FILE *__restrict);
int fputws (const wchar_t *__restrict, FILE *__restrict);
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
wint_t ungetwc (wint_t, FILE *);
struct tm;
use restrict everywhere it's required by c99 and/or posix 2008 to deal with the fact that the public headers may be used with pre-c99 compilers, __restrict is used in place of restrict, and defined appropriately for any supported compiler. we also avoid the form [restrict] since older versions of gcc rejected it due to a bug in the original c99 standard, and instead use the form *restrict.
2012-09-07 02:44:55 +00:00
size_t wcsftime (wchar_t *__restrict, size_t, const wchar_t *__restrict, const struct tm *__restrict);
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
#undef iswdigit
missing prototypes for mbsnrtowcs and wcsnrtombs
2011-05-30 17:32:40 +00:00
#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
|| defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE)
implement open_wmemstream not heavily tested, but it seems to be correct, including the odd behavior that seeking is in terms of wide character count. this precludes any simple buffering, so we just make the stream unbuffered.
2011-09-03 23:49:46 +00:00
FILE *open_wmemstream(wchar_t **, size_t *);
use restrict everywhere it's required by c99 and/or posix 2008 to deal with the fact that the public headers may be used with pre-c99 compilers, __restrict is used in place of restrict, and defined appropriately for any supported compiler. we also avoid the form [restrict] since older versions of gcc rejected it due to a bug in the original c99 standard, and instead use the form *restrict.
2012-09-07 02:44:55 +00:00
size_t mbsnrtowcs(wchar_t *__restrict, const char **__restrict, size_t, size_t, mbstate_t *__restrict);
size_t wcsnrtombs(char *__restrict, const wchar_t **__restrict, size_t, size_t, mbstate_t *__restrict);
add all missing wchar functions except floating point parsers these are mostly untested and adapted directly from corresponding byte string functions and similar.
2012-03-02 04:24:45 +00:00
wchar_t *wcsdup(const wchar_t *);
size_t wcsnlen (const wchar_t *, size_t);
use restrict everywhere it's required by c99 and/or posix 2008 to deal with the fact that the public headers may be used with pre-c99 compilers, __restrict is used in place of restrict, and defined appropriately for any supported compiler. we also avoid the form [restrict] since older versions of gcc rejected it due to a bug in the original c99 standard, and instead use the form *restrict.
2012-09-07 02:44:55 +00:00
wchar_t *wcpcpy (wchar_t *__restrict, const wchar_t *__restrict);
wchar_t *wcpncpy (wchar_t *__restrict, const wchar_t *__restrict, size_t);
add all missing wchar functions except floating point parsers these are mostly untested and adapted directly from corresponding byte string functions and similar.
2012-03-02 04:24:45 +00:00
int wcscasecmp(const wchar_t *, const wchar_t *);
int wcscasecmp_l(const wchar_t *, const wchar_t *, locale_t);
int wcsncasecmp(const wchar_t *, const wchar_t *, size_t);
int wcsncasecmp_l(const wchar_t *, const wchar_t *, size_t, locale_t);
int wcscoll_l(const wchar_t *, const wchar_t *, locale_t);
use restrict everywhere it's required by c99 and/or posix 2008 to deal with the fact that the public headers may be used with pre-c99 compilers, __restrict is used in place of restrict, and defined appropriately for any supported compiler. we also avoid the form [restrict] since older versions of gcc rejected it due to a bug in the original c99 standard, and instead use the form *restrict.
2012-09-07 02:44:55 +00:00
size_t wcsxfrm_l(wchar_t *__restrict, const wchar_t *__restrict, size_t n, locale_t);
missing prototypes for mbsnrtowcs and wcsnrtombs
2011-05-30 17:32:40 +00:00
#endif
more header fixes, minor warning fix
2011-02-15 00:33:11 +00:00
#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE)
int wcwidth (wchar_t);
int wcswidth (const wchar_t *, size_t);
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
int iswalnum(wint_t);
int iswalpha(wint_t);
int iswblank(wint_t);
int iswcntrl(wint_t);
int iswdigit(wint_t);
int iswgraph(wint_t);
int iswlower(wint_t);
int iswprint(wint_t);
int iswpunct(wint_t);
int iswspace(wint_t);
int iswupper(wint_t);
int iswxdigit(wint_t);
int iswctype(wint_t, wctype_t);
wint_t towlower(wint_t);
wint_t towupper(wint_t);
wctype_t wctype(const char *);
more header fixes, minor warning fix
2011-02-15 00:33:11 +00:00
#undef iswdigit
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
#define iswdigit(a) ((unsigned)(a)-'0' < 10)
more header fixes, minor warning fix
2011-02-15 00:33:11 +00:00
#endif
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
#ifdef __cplusplus
}
#endif
#endif