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Diffstat (limited to 'REORG.TODO/string/string.h')
| -rw-r--r-- | REORG.TODO/string/string.h | 544 |
1 files changed, 544 insertions, 0 deletions
diff --git a/REORG.TODO/string/string.h b/REORG.TODO/string/string.h new file mode 100644 index 0000000000..8eed67d77d --- /dev/null +++ b/REORG.TODO/string/string.h @@ -0,0 +1,544 @@ +/* Copyright (C) 1991-2017 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, see + <http://www.gnu.org/licenses/>. */ + +/* + * ISO C99 Standard: 7.21 String handling <string.h> + */ + +#ifndef _STRING_H +#define _STRING_H 1 + +#define __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION +#include <bits/libc-header-start.h> + +__BEGIN_DECLS + +/* Get size_t and NULL from <stddef.h>. */ +#define __need_size_t +#define __need_NULL +#include <stddef.h> + +/* Tell the caller that we provide correct C++ prototypes. */ +#if defined __cplusplus && __GNUC_PREREQ (4, 4) +# define __CORRECT_ISO_CPP_STRING_H_PROTO +#endif + + +/* Copy N bytes of SRC to DEST. */ +extern void *memcpy (void *__restrict __dest, const void *__restrict __src, + size_t __n) __THROW __nonnull ((1, 2)); +/* Copy N bytes of SRC to DEST, guaranteeing + correct behavior for overlapping strings. */ +extern void *memmove (void *__dest, const void *__src, size_t __n) + __THROW __nonnull ((1, 2)); + +/* Copy no more than N bytes of SRC to DEST, stopping when C is found. + Return the position in DEST one byte past where C was copied, + or NULL if C was not found in the first N bytes of SRC. */ +#if defined __USE_MISC || defined __USE_XOPEN +extern void *memccpy (void *__restrict __dest, const void *__restrict __src, + int __c, size_t __n) + __THROW __nonnull ((1, 2)); +#endif /* Misc || X/Open. */ + + +/* Set N bytes of S to C. */ +extern void *memset (void *__s, int __c, size_t __n) __THROW __nonnull ((1)); + +/* Compare N bytes of S1 and S2. */ +extern int memcmp (const void *__s1, const void *__s2, size_t __n) + __THROW __attribute_pure__ __nonnull ((1, 2)); + +/* Search N bytes of S for C. */ +#ifdef __CORRECT_ISO_CPP_STRING_H_PROTO +extern "C++" +{ +extern void *memchr (void *__s, int __c, size_t __n) + __THROW __asm ("memchr") __attribute_pure__ __nonnull ((1)); +extern const void *memchr (const void *__s, int __c, size_t __n) + __THROW __asm ("memchr") __attribute_pure__ __nonnull ((1)); + +# ifdef __OPTIMIZE__ +__extern_always_inline void * +memchr (void *__s, int __c, size_t __n) __THROW +{ + return __builtin_memchr (__s, __c, __n); +} + +__extern_always_inline const void * +memchr (const void *__s, int __c, size_t __n) __THROW +{ + return __builtin_memchr (__s, __c, __n); +} +# endif +} +#else +extern void *memchr (const void *__s, int __c, size_t __n) + __THROW __attribute_pure__ __nonnull ((1)); +#endif + +#ifdef __USE_GNU +/* Search in S for C. This is similar to `memchr' but there is no + length limit. */ +# ifdef __CORRECT_ISO_CPP_STRING_H_PROTO +extern "C++" void *rawmemchr (void *__s, int __c) + __THROW __asm ("rawmemchr") __attribute_pure__ __nonnull ((1)); +extern "C++" const void *rawmemchr (const void *__s, int __c) + __THROW __asm ("rawmemchr") __attribute_pure__ __nonnull ((1)); +# else +extern void *rawmemchr (const void *__s, int __c) + __THROW __attribute_pure__ __nonnull ((1)); +# endif + +/* Search N bytes of S for the final occurrence of C. */ +# ifdef __CORRECT_ISO_CPP_STRING_H_PROTO +extern "C++" void *memrchr (void *__s, int __c, size_t __n) + __THROW __asm ("memrchr") __attribute_pure__ __nonnull ((1)); +extern "C++" const void *memrchr (const void *__s, int __c, size_t __n) + __THROW __asm ("memrchr") __attribute_pure__ __nonnull ((1)); +# else +extern void *memrchr (const void *__s, int __c, size_t __n) + __THROW __attribute_pure__ __nonnull ((1)); +# endif +#endif + + +/* Copy SRC to DEST. */ +extern char *strcpy (char *__restrict __dest, const char *__restrict __src) + __THROW __nonnull ((1, 2)); +/* Copy no more than N characters of SRC to DEST. */ +extern char *strncpy (char *__restrict __dest, + const char *__restrict __src, size_t __n) + __THROW __nonnull ((1, 2)); + +/* Append SRC onto DEST. */ +extern char *strcat (char *__restrict __dest, const char *__restrict __src) + __THROW __nonnull ((1, 2)); +/* Append no more than N characters from SRC onto DEST. */ +extern char *strncat (char *__restrict __dest, const char *__restrict __src, + size_t __n) __THROW __nonnull ((1, 2)); + +/* Compare S1 and S2. */ +extern int strcmp (const char *__s1, const char *__s2) + __THROW __attribute_pure__ __nonnull ((1, 2)); +/* Compare N characters of S1 and S2. */ +extern int strncmp (const char *__s1, const char *__s2, size_t __n) + __THROW __attribute_pure__ __nonnull ((1, 2)); + +/* Compare the collated forms of S1 and S2. */ +extern int strcoll (const char *__s1, const char *__s2) + __THROW __attribute_pure__ __nonnull ((1, 2)); +/* Put a transformation of SRC into no more than N bytes of DEST. */ +extern size_t strxfrm (char *__restrict __dest, + const char *__restrict __src, size_t __n) + __THROW __nonnull ((2)); + +#ifdef __USE_XOPEN2K8 +# include <xlocale.h> + +/* Compare the collated forms of S1 and S2, using sorting rules from L. */ +extern int strcoll_l (const char *__s1, const char *__s2, __locale_t __l) + __THROW __attribute_pure__ __nonnull ((1, 2, 3)); +/* Put a transformation of SRC into no more than N bytes of DEST, + using sorting rules from L. */ +extern size_t strxfrm_l (char *__dest, const char *__src, size_t __n, + __locale_t __l) __THROW __nonnull ((2, 4)); +#endif + +#if (defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K8 \ + || __GLIBC_USE (LIB_EXT2)) +/* Duplicate S, returning an identical malloc'd string. */ +extern char *strdup (const char *__s) + __THROW __attribute_malloc__ __nonnull ((1)); +#endif + +/* Return a malloc'd copy of at most N bytes of STRING. The + resultant string is terminated even if no null terminator + appears before STRING[N]. */ +#if defined __USE_XOPEN2K8 || __GLIBC_USE (LIB_EXT2) +extern char *strndup (const char *__string, size_t __n) + __THROW __attribute_malloc__ __nonnull ((1)); +#endif + +#if defined __USE_GNU && defined __GNUC__ +/* Duplicate S, returning an identical alloca'd string. */ +# define strdupa(s) \ + (__extension__ \ + ({ \ + const char *__old = (s); \ + size_t __len = strlen (__old) + 1; \ + char *__new = (char *) __builtin_alloca (__len); \ + (char *) memcpy (__new, __old, __len); \ + })) + +/* Return an alloca'd copy of at most N bytes of string. */ +# define strndupa(s, n) \ + (__extension__ \ + ({ \ + const char *__old = (s); \ + size_t __len = strnlen (__old, (n)); \ + char *__new = (char *) __builtin_alloca (__len + 1); \ + __new[__len] = '\0'; \ + (char *) memcpy (__new, __old, __len); \ + })) +#endif + +/* Find the first occurrence of C in S. */ +#ifdef __CORRECT_ISO_CPP_STRING_H_PROTO +extern "C++" +{ +extern char *strchr (char *__s, int __c) + __THROW __asm ("strchr") __attribute_pure__ __nonnull ((1)); +extern const char *strchr (const char *__s, int __c) + __THROW __asm ("strchr") __attribute_pure__ __nonnull ((1)); + +# ifdef __OPTIMIZE__ +__extern_always_inline char * +strchr (char *__s, int __c) __THROW +{ + return __builtin_strchr (__s, __c); +} + +__extern_always_inline const char * +strchr (const char *__s, int __c) __THROW +{ + return __builtin_strchr (__s, __c); +} +# endif +} +#else +extern char *strchr (const char *__s, int __c) + __THROW __attribute_pure__ __nonnull ((1)); +#endif +/* Find the last occurrence of C in S. */ +#ifdef __CORRECT_ISO_CPP_STRING_H_PROTO +extern "C++" +{ +extern char *strrchr (char *__s, int __c) + __THROW __asm ("strrchr") __attribute_pure__ __nonnull ((1)); +extern const char *strrchr (const char *__s, int __c) + __THROW __asm ("strrchr") __attribute_pure__ __nonnull ((1)); + +# ifdef __OPTIMIZE__ +__extern_always_inline char * +strrchr (char *__s, int __c) __THROW +{ + return __builtin_strrchr (__s, __c); +} + +__extern_always_inline const char * +strrchr (const char *__s, int __c) __THROW +{ + return __builtin_strrchr (__s, __c); +} +# endif +} +#else +extern char *strrchr (const char *__s, int __c) + __THROW __attribute_pure__ __nonnull ((1)); +#endif + +#ifdef __USE_GNU +/* This function is similar to `strchr'. But it returns a pointer to + the closing NUL byte in case C is not found in S. */ +# ifdef __CORRECT_ISO_CPP_STRING_H_PROTO +extern "C++" char *strchrnul (char *__s, int __c) + __THROW __asm ("strchrnul") __attribute_pure__ __nonnull ((1)); +extern "C++" const char *strchrnul (const char *__s, int __c) + __THROW __asm ("strchrnul") __attribute_pure__ __nonnull ((1)); +# else +extern char *strchrnul (const char *__s, int __c) + __THROW __attribute_pure__ __nonnull ((1)); +# endif +#endif + +/* Return the length of the initial segment of S which + consists entirely of characters not in REJECT. */ +extern size_t strcspn (const char *__s, const char *__reject) + __THROW __attribute_pure__ __nonnull ((1, 2)); +/* Return the length of the initial segment of S which + consists entirely of characters in ACCEPT. */ +extern size_t strspn (const char *__s, const char *__accept) + __THROW __attribute_pure__ __nonnull ((1, 2)); +/* Find the first occurrence in S of any character in ACCEPT. */ +#ifdef __CORRECT_ISO_CPP_STRING_H_PROTO +extern "C++" +{ +extern char *strpbrk (char *__s, const char *__accept) + __THROW __asm ("strpbrk") __attribute_pure__ __nonnull ((1, 2)); +extern const char *strpbrk (const char *__s, const char *__accept) + __THROW __asm ("strpbrk") __attribute_pure__ __nonnull ((1, 2)); + +# ifdef __OPTIMIZE__ +__extern_always_inline char * +strpbrk (char *__s, const char *__accept) __THROW +{ + return __builtin_strpbrk (__s, __accept); +} + +__extern_always_inline const char * +strpbrk (const char *__s, const char *__accept) __THROW +{ + return __builtin_strpbrk (__s, __accept); +} +# endif +} +#else +extern char *strpbrk (const char *__s, const char *__accept) + __THROW __attribute_pure__ __nonnull ((1, 2)); +#endif +/* Find the first occurrence of NEEDLE in HAYSTACK. */ +#ifdef __CORRECT_ISO_CPP_STRING_H_PROTO +extern "C++" +{ +extern char *strstr (char *__haystack, const char *__needle) + __THROW __asm ("strstr") __attribute_pure__ __nonnull ((1, 2)); +extern const char *strstr (const char *__haystack, const char *__needle) + __THROW __asm ("strstr") __attribute_pure__ __nonnull ((1, 2)); + +# ifdef __OPTIMIZE__ +__extern_always_inline char * +strstr (char *__haystack, const char *__needle) __THROW +{ + return __builtin_strstr (__haystack, __needle); +} + +__extern_always_inline const char * +strstr (const char *__haystack, const char *__needle) __THROW +{ + return __builtin_strstr (__haystack, __needle); +} +# endif +} +#else +extern char *strstr (const char *__haystack, const char *__needle) + __THROW __attribute_pure__ __nonnull ((1, 2)); +#endif + + +/* Divide S into tokens separated by characters in DELIM. */ +extern char *strtok (char *__restrict __s, const char *__restrict __delim) + __THROW __nonnull ((2)); + +/* Divide S into tokens separated by characters in DELIM. Information + passed between calls are stored in SAVE_PTR. */ +extern char *__strtok_r (char *__restrict __s, + const char *__restrict __delim, + char **__restrict __save_ptr) + __THROW __nonnull ((2, 3)); +#ifdef __USE_POSIX +extern char *strtok_r (char *__restrict __s, const char *__restrict __delim, + char **__restrict __save_ptr) + __THROW __nonnull ((2, 3)); +#endif + +#ifdef __USE_GNU +/* Similar to `strstr' but this function ignores the case of both strings. */ +# ifdef __CORRECT_ISO_CPP_STRING_H_PROTO +extern "C++" char *strcasestr (char *__haystack, const char *__needle) + __THROW __asm ("strcasestr") __attribute_pure__ __nonnull ((1, 2)); +extern "C++" const char *strcasestr (const char *__haystack, + const char *__needle) + __THROW __asm ("strcasestr") __attribute_pure__ __nonnull ((1, 2)); +# else +extern char *strcasestr (const char *__haystack, const char *__needle) + __THROW __attribute_pure__ __nonnull ((1, 2)); +# endif +#endif + +#ifdef __USE_GNU +/* Find the first occurrence of NEEDLE in HAYSTACK. + NEEDLE is NEEDLELEN bytes long; + HAYSTACK is HAYSTACKLEN bytes long. */ +extern void *memmem (const void *__haystack, size_t __haystacklen, + const void *__needle, size_t __needlelen) + __THROW __attribute_pure__ __nonnull ((1, 3)); + +/* Copy N bytes of SRC to DEST, return pointer to bytes after the + last written byte. */ +extern void *__mempcpy (void *__restrict __dest, + const void *__restrict __src, size_t __n) + __THROW __nonnull ((1, 2)); +extern void *mempcpy (void *__restrict __dest, + const void *__restrict __src, size_t __n) + __THROW __nonnull ((1, 2)); +#endif + + +/* Return the length of S. */ +extern size_t strlen (const char *__s) + __THROW __attribute_pure__ __nonnull ((1)); + +#ifdef __USE_XOPEN2K8 +/* Find the length of STRING, but scan at most MAXLEN characters. + If no '\0' terminator is found in that many characters, return MAXLEN. */ +extern size_t strnlen (const char *__string, size_t __maxlen) + __THROW __attribute_pure__ __nonnull ((1)); +#endif + + +/* Return a string describing the meaning of the `errno' code in ERRNUM. */ +extern char *strerror (int __errnum) __THROW; +#ifdef __USE_XOPEN2K +/* Reentrant version of `strerror'. + There are 2 flavors of `strerror_r', GNU which returns the string + and may or may not use the supplied temporary buffer and POSIX one + which fills the string into the buffer. + To use the POSIX version, -D_XOPEN_SOURCE=600 or -D_POSIX_C_SOURCE=200112L + without -D_GNU_SOURCE is needed, otherwise the GNU version is + preferred. */ +# if defined __USE_XOPEN2K && !defined __USE_GNU +/* Fill BUF with a string describing the meaning of the `errno' code in + ERRNUM. */ +# ifdef __REDIRECT_NTH +extern int __REDIRECT_NTH (strerror_r, + (int __errnum, char *__buf, size_t __buflen), + __xpg_strerror_r) __nonnull ((2)); +# else +extern int __xpg_strerror_r (int __errnum, char *__buf, size_t __buflen) + __THROW __nonnull ((2)); +# define strerror_r __xpg_strerror_r +# endif +# else +/* If a temporary buffer is required, at most BUFLEN bytes of BUF will be + used. */ +extern char *strerror_r (int __errnum, char *__buf, size_t __buflen) + __THROW __nonnull ((2)) __wur; +# endif +#endif + +#ifdef __USE_XOPEN2K8 +/* Translate error number to string according to the locale L. */ +extern char *strerror_l (int __errnum, __locale_t __l) __THROW; +#endif + +#ifdef __USE_MISC +# include <strings.h> + +/* Set N bytes of S to 0. The compiler will not delete a call to this + function, even if S is dead after the call. */ +extern void explicit_bzero (void *__s, size_t __n) __THROW __nonnull ((1)); + +/* Return the next DELIM-delimited token from *STRINGP, + terminating it with a '\0', and update *STRINGP to point past it. */ +extern char *strsep (char **__restrict __stringp, + const char *__restrict __delim) + __THROW __nonnull ((1, 2)); +#endif + +#ifdef __USE_XOPEN2K8 +/* Return a string describing the meaning of the signal number in SIG. */ +extern char *strsignal (int __sig) __THROW; + +/* Copy SRC to DEST, returning the address of the terminating '\0' in DEST. */ +extern char *__stpcpy (char *__restrict __dest, const char *__restrict __src) + __THROW __nonnull ((1, 2)); +extern char *stpcpy (char *__restrict __dest, const char *__restrict __src) + __THROW __nonnull ((1, 2)); + +/* Copy no more than N characters of SRC to DEST, returning the address of + the last character written into DEST. */ +extern char *__stpncpy (char *__restrict __dest, + const char *__restrict __src, size_t __n) + __THROW __nonnull ((1, 2)); +extern char *stpncpy (char *__restrict __dest, + const char *__restrict __src, size_t __n) + __THROW __nonnull ((1, 2)); +#endif + +#ifdef __USE_GNU +/* Compare S1 and S2 as strings holding name & indices/version numbers. */ +extern int strverscmp (const char *__s1, const char *__s2) + __THROW __attribute_pure__ __nonnull ((1, 2)); + +/* Sautee STRING briskly. */ +extern char *strfry (char *__string) __THROW __nonnull ((1)); + +/* Frobnicate N bytes of S. */ +extern void *memfrob (void *__s, size_t __n) __THROW __nonnull ((1)); + +# ifndef basename +/* Return the file name within directory of FILENAME. We don't + declare the function if the `basename' macro is available (defined + in <libgen.h>) which makes the XPG version of this function + available. */ +# ifdef __CORRECT_ISO_CPP_STRING_H_PROTO +extern "C++" char *basename (char *__filename) + __THROW __asm ("basename") __nonnull ((1)); +extern "C++" const char *basename (const char *__filename) + __THROW __asm ("basename") __nonnull ((1)); +# else +extern char *basename (const char *__filename) __THROW __nonnull ((1)); +# endif +# endif +#endif + + +#if __GNUC_PREREQ (3,4) +# if defined __OPTIMIZE__ && !defined __OPTIMIZE_SIZE__ \ + && !defined __NO_INLINE__ && !defined __cplusplus +/* When using GNU CC we provide some optimized versions of selected + functions from this header. There are two kinds of optimizations: + + - machine-dependent optimizations, most probably using inline + assembler code; these might be quite expensive since the code + size can increase significantly. + These optimizations are not used unless the symbol + __USE_STRING_INLINES + is defined before including this header. + + - machine-independent optimizations which do not increase the + code size significantly and which optimize mainly situations + where one or more arguments are compile-time constants. + These optimizations are used always when the compiler is + taught to optimize. + + One can inhibit all optimizations by defining __NO_STRING_INLINES. */ + +/* Get the machine-dependent optimizations (if any). */ +# include <bits/string.h> + +/* These are generic optimizations which do not add too much inline code. */ +# include <bits/string2.h> +# endif + +# if __USE_FORTIFY_LEVEL > 0 && defined __fortify_function +/* Functions with security checks. */ +# include <bits/string3.h> +# endif +#endif + +#if defined __USE_GNU && defined __OPTIMIZE__ \ + && defined __extern_always_inline && __GNUC_PREREQ (3,2) +# if !defined _FORCE_INLINES && !defined _HAVE_STRING_ARCH_mempcpy + +#define mempcpy(dest, src, n) __mempcpy_inline (dest, src, n) +#define __mempcpy(dest, src, n) __mempcpy_inline (dest, src, n) + +__extern_always_inline void * +__mempcpy_inline (void *__restrict __dest, + const void *__restrict __src, size_t __n) +{ + return (char *) memcpy (__dest, __src, __n) + __n; +} + +# endif +#endif + +__END_DECLS + +#endif /* string.h */ |