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Diffstat (limited to 'stdlib/bits/stdlib.h')
| -rw-r--r-- | stdlib/bits/stdlib.h | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/stdlib/bits/stdlib.h b/stdlib/bits/stdlib.h new file mode 100644 index 0000000000..4bacb09a09 --- /dev/null +++ b/stdlib/bits/stdlib.h @@ -0,0 +1,115 @@ +/* Checking macros for stdlib functions. + Copyright (C) 2005 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _STDLIB_H +# error "Never include <bits/stdlib.h> directly; use <stdlib.h> instead." +#endif + +extern char *__realpath_chk (__const char *__restrict __name, + char *__restrict __resolved, + size_t __resolvedlen) __THROW __wur; +extern char *__REDIRECT_NTH (__realpath_alias, + (__const char *__restrict __name, + char *__restrict __resolved), realpath) __wur; + +extern __always_inline __wur char * +__NTH (realpath (__const char *__restrict __name, char *__restrict __resolved)) +{ + if (__bos (__resolved) != (size_t) -1) + return __realpath_chk (__name, __resolved, __bos (__resolved)); + + return __realpath_alias (__name, __resolved); +} + + +extern int __ptsname_r_chk (int __fd, char *__buf, size_t __buflen, + size_t __nreal) __THROW __nonnull ((2)); +extern int __REDIRECT_NTH (__ptsname_r_alias, (int __fd, char *__buf, + size_t __buflen), ptsname_r) + __nonnull ((2)); + +extern __always_inline int +__NTH (ptsname_r (int __fd, char *__buf, size_t __buflen)) +{ + if (__bos (__buf) != (size_t) -1 + && (!__builtin_constant_p (__buflen) || __buflen > __bos (__buf))) + return __ptsname_r_chk (__fd, __buf, __buflen, __bos (__buf)); + return __ptsname_r_alias (__fd, __buf, __buflen); +} + + +extern int __wctomb_chk (char *__s, wchar_t __wchar, size_t __buflen) + __THROW __wur; +extern int __REDIRECT_NTH (__wctomb_alias, (char *__s, wchar_t __wchar), + wctomb) __wur; + +extern __always_inline __wur int +__NTH (wctomb (char *__s, wchar_t __wchar)) +{ + /* We would have to include <limits.h> to get a definition of MB_LEN_MAX. + But this would only disturb the namespace. So we define our own + version here. */ +#define __STDLIB_MB_LEN_MAX 16 +#if defined MB_LEN_MAX && MB_LEN_MAX != __STDLIB_MB_LEN_MAX +# error "Assumed value of MB_LEN_MAX wrong" +#endif + if (__bos (__s) != (size_t) -1 && __STDLIB_MB_LEN_MAX > __bos (__s)) + return __wctomb_chk (__s, __wchar, __bos (__s)); + return __wctomb_alias (__s, __wchar); +} + + +extern size_t __mbstowcs_chk (wchar_t *__restrict __dst, + __const char *__restrict __src, + size_t __len, size_t __dstlen) __THROW; +extern size_t __REDIRECT_NTH (__mbstowcs_alias, + (wchar_t *__restrict __dst, + __const char *__restrict __src, + size_t __len), mbstowcs); + +extern __always_inline size_t +__NTH (mbstowcs (wchar_t *__restrict __dst, __const char *__restrict __src, + size_t __len)) +{ + if (__bos (__dst) != (size_t) -1 + && (!__builtin_constant_p (__len) + || __len > __bos (__dst) / sizeof (wchar_t))) + return __mbstowcs_chk (__dst, __src, __len, + __bos (__dst) / sizeof (wchar_t)); + return __mbstowcs_alias (__dst, __src, __len); +} + + +extern size_t __wcstombs_chk (char *__restrict __dst, + __const wchar_t *__restrict __src, + size_t __len, size_t __dstlen) __THROW; +extern size_t __REDIRECT_NTH (__wcstombs_alias, + (char *__restrict __dst, + __const wchar_t *__restrict __src, + size_t __len), wcstombs); + +extern __always_inline size_t +__NTH (wcstombs (char *__restrict __dst, __const wchar_t *__restrict __src, + size_t __len)) +{ + if (__bos (__dst) != (size_t) -1 + && (!__builtin_constant_p (__len) || __len > __bos (__dst))) + return __wcstombs_chk (__dst, __src, __len, __bos (__dst)); + return __wcstombs_alias (__dst, __src, __len); +} |