glibc/include/wctype.h
Joseph Myers 9dd6b7799a Fix regex wctype namespace (bug 18495).
regcomp brings in references to various wctype functions that aren't
in all the standards including regcomp.  This patch fixes this in the
usual way by using the __* versions of these functions (which already
exist, but some didn't have libc_hidden_proto / libc_hidden_def
before).

Tested for x86_64 and x86 (testsuite, and that installed stripped
shared libraries are unchanged by the patch).  (Other wide character
function references from the regex code mean that this patch by itself
doesn't fix any XFAILed linknamespace test failures; further patches
will be needed for that.)

	[BZ #18495]
	* wctype/wcfuncs.c (__iswalnum): Use libc_hidden_def.
	(__iswlower): Likewise.
	* include/wctype.h (__iswalnum): Declare.  Use libc_hidden_proto.
	(__iswlower): Likewise.
	* posix/regcomp.c (re_compile_fastmap_iter): Call __towlower
	instead of towlower.
	* posix/regex_internal.c (build_wcs_upper_buffer): Call __iswlower
	instead of iswlower.  Call __towupper instead of towupper.
	* posix/regex_internal.h (IS_WIDE_WORD_CHAR): Call __iswalnum
	instead of iswalnum.
2015-06-05 20:04:47 +00:00

102 lines
3.4 KiB
C

#ifndef _WCTYPE_H
#ifndef _ISOMAC
/* We try to get wint_t from <stddef.h>, but not all GCC versions define it
there. So define it ourselves if it remains undefined. */
# define __need_wint_t
# include <stddef.h>
# ifndef _WINT_T
/* Integral type unchanged by default argument promotions that can
hold any value corresponding to members of the extended character
set, as well as at least one value that does not correspond to any
member of the extended character set. */
# define _WINT_T
typedef unsigned int wint_t;
# endif
/* Need to repeat these prototypes here, as wctype/wctype.h defines all
these as macros and thus we couldn't add libc_hidden_proto. */
extern int iswalpha (wint_t __wc);
extern int iswalnum (wint_t __wc);
extern int iswdigit (wint_t __wc);
extern int iswlower (wint_t __wc);
extern int iswspace (wint_t __wc);
extern int iswxdigit (wint_t __wc);
extern wint_t towlower (wint_t __wc);
extern wint_t towupper (wint_t __wc);
libc_hidden_proto (iswalpha)
libc_hidden_proto (iswalnum)
libc_hidden_proto (iswdigit)
libc_hidden_proto (iswlower)
libc_hidden_proto (iswspace)
libc_hidden_proto (iswxdigit)
libc_hidden_proto (towlower)
libc_hidden_proto (towupper)
#endif
#include <wctype/wctype.h>
#ifndef _ISOMAC
/* Internal interfaces. */
extern int __iswspace (wint_t __wc);
extern int __iswctype (wint_t __wc, wctype_t __desc);
extern wctype_t __wctype (const char *__property);
extern wctrans_t __wctrans (const char *__property);
extern wint_t __towctrans (wint_t __wc, wctrans_t __desc);
extern __typeof (iswalnum) __iswalnum __THROW __attribute_pure__;
extern __typeof (iswalnum_l) __iswalnum_l;
extern __typeof (iswalpha_l) __iswalpha_l;
extern __typeof (iswblank_l) __iswblank_l;
extern __typeof (iswcntrl_l) __iswcntrl_l;
extern __typeof (iswdigit_l) __iswdigit_l;
extern __typeof (iswlower) __iswlower __THROW __attribute_pure__;
extern __typeof (iswlower_l) __iswlower_l;
extern __typeof (iswgraph_l) __iswgraph_l;
extern __typeof (iswprint_l) __iswprint_l;
extern __typeof (iswpunct_l) __iswpunct_l;
extern __typeof (iswspace_l) __iswspace_l;
extern __typeof (iswupper_l) __iswupper_l;
extern __typeof (iswxdigit_l) __iswxdigit_l;
extern __typeof (towlower_l) __towlower_l;
extern __typeof (towupper_l) __towupper_l;
extern __typeof (towlower) __towlower __THROW __attribute_pure__;
extern __typeof (towupper) __towupper __THROW __attribute_pure__;
libc_hidden_proto (__towctrans)
libc_hidden_proto (__iswctype)
libc_hidden_proto (__iswalnum)
libc_hidden_proto (__iswalnum_l)
libc_hidden_proto (__iswalpha_l)
libc_hidden_proto (__iswblank_l)
libc_hidden_proto (__iswcntrl_l)
libc_hidden_proto (__iswdigit_l)
libc_hidden_proto (__iswlower)
libc_hidden_proto (__iswlower_l)
libc_hidden_proto (__iswgraph_l)
libc_hidden_proto (__iswprint_l)
libc_hidden_proto (__iswpunct_l)
libc_hidden_proto (__iswspace_l)
libc_hidden_proto (__iswupper_l)
libc_hidden_proto (__iswxdigit_l)
libc_hidden_proto (__towlower_l)
libc_hidden_proto (__towupper_l)
libc_hidden_proto (__towlower)
libc_hidden_proto (__towupper)
/* The spec says that isdigit must only match the decimal digits. We
can check this without a memory access. */
# if IS_IN (libc)
# undef iswdigit
# define iswdigit(c) ({ wint_t __c = (c); __c >= L'0' && __c <= L'9'; })
# undef iswdigit_l
# define iswdigit_l(c, l) ({ wint_t __c = (c); __c >= L'0' && __c <= L'9'; })
# undef __iswdigit_l
# define __iswdigit_l(c, l) ({ wint_t __c = (c); __c >= L'0' && __c <= L'9'; })
# endif
#endif
#endif