glibc/include/ctype.h
Roland McGrath 0d2f48bb4a * include/ctype.h (__ctype_b_loc, __ctype_toupper_loc,
__ctype_tolower_loc): Avoid "dereferencing type-punned pointer will
	break strict-aliasing rules" warnings.
2003-07-29 23:48:35 +00:00

72 lines
1.9 KiB
C

#ifndef _CTYPE_H
extern int __isctype (int __c, int __mask);
# ifndef NOT_IN_libc
/* These accessors are used by the optimized macros to find the
thread-local cache of ctype information from the current thread's
locale. For inside libc, define them as inlines using the _NL_CURRENT
accessors. We don't use _NL_CURRENT_LOCALE->__ctype_b here because we
want to cause a link-time ref to _nl_current_LC_CTYPE under
NL_CURRENT_INDIRECT. */
# include "../locale/localeinfo.h"
# include <bits/libc-tsd.h>
# ifndef CTYPE_EXTERN_INLINE /* Used by ctype/ctype-info.c, which see. */
# define CTYPE_EXTERN_INLINE extern inline
# endif
__libc_tsd_define (extern, CTYPE_B)
__libc_tsd_define (extern, CTYPE_TOUPPER)
__libc_tsd_define (extern, CTYPE_TOLOWER)
CTYPE_EXTERN_INLINE const uint16_t ** __attribute__ ((const))
__ctype_b_loc (void)
{
union
{
void **ptr;
const uint16_t **tablep;
} u;
u.ptr = __libc_tsd_address (CTYPE_B);
if (__builtin_expect (*u.tablep == NULL, 0))
*u.tablep = (const uint16_t *) _NL_CURRENT (LC_CTYPE, _NL_CTYPE_CLASS) + 128;
return u.tablep;
}
CTYPE_EXTERN_INLINE const int32_t ** __attribute__ ((const))
__ctype_toupper_loc (void)
{
union
{
void **ptr;
const int32_t **tablep;
} u;
u.ptr = __libc_tsd_address (CTYPE_TOUPPER);
if (__builtin_expect (*u.tablep == NULL, 0))
*u.tablep = ((int32_t *) _NL_CURRENT (LC_CTYPE, _NL_CTYPE_TOUPPER) + 128);
return u.tablep;
}
CTYPE_EXTERN_INLINE const int32_t ** __attribute__ ((const))
__ctype_tolower_loc (void)
{
union
{
void **ptr;
const int32_t **tablep;
} u;
u.ptr = __libc_tsd_address (CTYPE_TOLOWER);
if (__builtin_expect (*u.tablep == NULL, 0))
*u.tablep = ((int32_t *) _NL_CURRENT (LC_CTYPE, _NL_CTYPE_TOLOWER) + 128);
return u.tablep;
}
# endif /* Not NOT_IN_libc. */
# include <ctype/ctype.h>
#endif /* ctype.h */