-/* Copyright (C) 1991-2013 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2019 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
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/>. */
+ <https://www.gnu.org/licenses/>. */
#ifndef _STRINGS_H
#define _STRINGS_H 1
-/* We don't need and should not read this file if <string.h> was already
- read. The one exception being that if __USE_BSD isn't defined, then
- these aren't defined in string.h, so we need to define them here. */
-#if !defined _STRING_H || !defined __USE_BSD
-
-# include <features.h>
-# define __need_size_t
-# include <stddef.h>
-
-/* Provide correct C++ prototypes, and indicate this to the caller. This
- requires a compatible C++ standard library. As a heuristic, we provide
- these when the compiler indicates full conformance with C++98 or later,
- and for older GCC versions that are known to provide a compatible
- libstdc++. */
-# if defined __cplusplus && (__cplusplus >= 199711L || __GNUC_PREREQ (4, 4))
-# define __CORRECT_ISO_CPP_STRINGS_H_PROTO
-# endif
+#include <features.h>
+#define __need_size_t
+#include <stddef.h>
+
+/* Tell the caller that we provide correct C++ prototypes. */
+#if defined __cplusplus && __GNUC_PREREQ (4, 4)
+# define __CORRECT_ISO_CPP_STRINGS_H_PROTO
+#endif
__BEGIN_DECLS
-# if defined __USE_MISC || !defined __USE_XOPEN2K8
+#if defined __USE_MISC || !defined __USE_XOPEN2K8
/* Compare N bytes of S1 and S2 (same as memcmp). */
extern int bcmp (const void *__s1, const void *__s2, size_t __n)
- __THROW __attribute_pure__;
+ __THROW __attribute_pure__ __nonnull ((1, 2));
/* Copy N bytes of SRC to DEST (like memmove, but args reversed). */
-extern void bcopy (const void *__src, void *__dest, size_t __n) __THROW;
+extern void bcopy (const void *__src, void *__dest, size_t __n)
+ __THROW __nonnull ((1, 2));
/* Set N bytes of S to 0. */
-extern void bzero (void *__s, size_t __n) __THROW;
+extern void bzero (void *__s, size_t __n) __THROW __nonnull ((1));
/* Find the first occurrence of C in S (same as strchr). */
-# ifdef __CORRECT_ISO_CPP_STRINGS_H_PROTO
+# ifdef __CORRECT_ISO_CPP_STRINGS_H_PROTO
extern "C++"
{
extern char *index (char *__s, int __c)
extern const char *index (const char *__s, int __c)
__THROW __asm ("index") __attribute_pure__ __nonnull ((1));
-# if defined __OPTIMIZE__ && !defined __CORRECT_ISO_CPP_STRING_H_PROTO
+# if defined __OPTIMIZE__
__extern_always_inline char *
index (char *__s, int __c) __THROW
{
{
return __builtin_index (__s, __c);
}
-# endif
+# endif
}
-# else
+# else
extern char *index (const char *__s, int __c)
__THROW __attribute_pure__ __nonnull ((1));
-# endif
+# endif
/* Find the last occurrence of C in S (same as strrchr). */
-# ifdef __CORRECT_ISO_CPP_STRINGS_H_PROTO
+# ifdef __CORRECT_ISO_CPP_STRINGS_H_PROTO
extern "C++"
{
extern char *rindex (char *__s, int __c)
extern const char *rindex (const char *__s, int __c)
__THROW __asm ("rindex") __attribute_pure__ __nonnull ((1));
-# if defined __OPTIMIZE__ && !defined __CORRECT_ISO_CPP_STRING_H_PROTO
+# if defined __OPTIMIZE__
__extern_always_inline char *
rindex (char *__s, int __c) __THROW
{
{
return __builtin_rindex (__s, __c);
}
-# endif
+# endif
}
-# else
+# else
extern char *rindex (const char *__s, int __c)
__THROW __attribute_pure__ __nonnull ((1));
-# endif
# endif
+#endif
#if defined __USE_MISC || !defined __USE_XOPEN2K8 || defined __USE_XOPEN2K8XSI
/* Return the position of the first bit set in I, or 0 if none are set.
The least-significant bit is position 1, the most-significant 32. */
-extern int ffs (int __i) __THROW __attribute__ ((const));
+extern int ffs (int __i) __THROW __attribute_const__;
#endif
+/* The following two functions are non-standard but necessary for non-32 bit
+ platforms. */
+# ifdef __USE_MISC
+extern int ffsl (long int __l) __THROW __attribute_const__;
+__extension__ extern int ffsll (long long int __ll)
+ __THROW __attribute_const__;
+# endif
+
/* Compare S1 and S2, ignoring case. */
extern int strcasecmp (const char *__s1, const char *__s2)
- __THROW __attribute_pure__;
+ __THROW __attribute_pure__ __nonnull ((1, 2));
/* Compare no more than N chars of S1 and S2, ignoring case. */
extern int strncasecmp (const char *__s1, const char *__s2, size_t __n)
- __THROW __attribute_pure__;
+ __THROW __attribute_pure__ __nonnull ((1, 2));
#ifdef __USE_XOPEN2K8
-/* The following functions are equivalent to the both above but they
- take the locale they use for the collation as an extra argument.
- This is not standardsized but something like will come. */
-# include <xlocale.h>
-
-/* Again versions of a few functions which use the given locale instead
- of the global one. */
-extern int strcasecmp_l (const char *__s1, const char *__s2, __locale_t __loc)
+/* POSIX.1-2008 extended locale interface (see locale.h). */
+# include <bits/types/locale_t.h>
+
+/* Compare S1 and S2, ignoring case, using collation rules from LOC. */
+extern int strcasecmp_l (const char *__s1, const char *__s2, locale_t __loc)
__THROW __attribute_pure__ __nonnull ((1, 2, 3));
+/* Compare no more than N chars of S1 and S2, ignoring case, using
+ collation rules from LOC. */
extern int strncasecmp_l (const char *__s1, const char *__s2,
- size_t __n, __locale_t __loc)
+ size_t __n, locale_t __loc)
__THROW __attribute_pure__ __nonnull ((1, 2, 4));
#endif
__END_DECLS
-#endif /* string.h */
+#if __GNUC_PREREQ (3,4) && __USE_FORTIFY_LEVEL > 0 \
+ && defined __fortify_function
+/* Functions with security checks. */
+# if defined __USE_MISC || !defined __USE_XOPEN2K8
+# include <bits/strings_fortified.h>
+# endif
+#endif
#endif /* strings.h */
projects / thirdparty / glibc.git / blobdiff