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authorJoseph Myers <joseph@codesourcery.com>2017-03-16 13:31:57 +0000
committerJoseph Myers <joseph@codesourcery.com>2017-03-16 13:31:57 +0000
commit2072f5c34ede81dde9e0d953d57a0690a66b0f12 (patch)
tree0833e169e1c3e9b24ef64e9010f7bb1e862f7da8 /wcsmbs
parentd6fc3f6516cd20f195758086fbbbe3f17a8a6d95 (diff)
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Remove C++ namespace handling from glibc headers.
glibc headers include some code (not particularly consistent or systematic) to put various declarations in C++ namespaces std and __c99, if _GLIBCPP_USE_NAMESPACES is defined. As noted in <https://gcc.gnu.org/ml/libstdc++/2017-03/msg00025.html>, this macro was removed from libstdc++ in 2000. I don't expect compilation with such old versions of libstdc++ to work with current glibc headers anyway (whereas old *binaries* are expected to stay working with current glibc); this patch (which should be a no-op with any libstdc++ version postdating that removal) removes all this code from the glibc headers. The begin-end-check.pl test, whose comments say it is about checking these namespace macro calls, is also removed. The code in that test would have covered __BEGIN_DECLS / __END_DECLS as well, but if those weren't properly matched it would show up with the check-installed-headers-cxx tests, so I don't think there is an actual use for keeping begin-end-check.pl with the namespace code removed. Tested for x86_64 and x86 (testsuite, and that installed stripped shared libraries are unchanged by the patch). * misc/sys/cdefs.h (__BEGIN_NAMESPACE_STD): Remove macro. (__END_NAMESPACE_STD): Likewise. (__USING_NAMESPACE_STD): Likewise. (__BEGIN_NAMESPACE_C99): Likewise. (__END_NAMESPACE_C99): Likewise. (__USING_NAMESPACE_C99): Likewise. * math/math.h (_Mdouble_BEGIN_NAMESPACE): Do not define and undefine macro. (_Mdouble_END_NAMESPACE): Likewise. * ctype/ctype.h: Do not handle C++ namespaces. * libio/bits/stdio-ldbl.h: Likewise. * libio/stdio.h: Likewise. * locale/locale.h: Likewise. * math/bits/mathcalls.h: Likewise. * setjmp/setjmp.h: Likewise. * signal/signal.h: Likewise. * stdlib/bits/stdlib-float.h: Likewise. * stdlib/bits/stdlib-ldbl.h: Likewise. * stdlib/stdlib.h: Likewise. * string/string.h: Likewise. * sysdeps/x86/fpu/bits/mathinline.h: Likewise. * time/bits/types/clock_t.h: Likewise. * time/bits/types/struct_tm.h: Likewise. * time/bits/types/time_t.h: Likewise. * time/time.h: Likewise. * wcsmbs/bits/wchar-ldbl.h: Likewise. * wcsmbs/uchar.h: Likewise. * wcsmbs/wchar.h: Likewise. [_GLIBCPP_USE_NAMESPACES] (wint_t): Remove conditional definition. * wctype/wctype.h: Do not handle C++ namespaces. * scripts/begin-end-check.pl: Remove. * Makefile (installed-headers): Likewise. (tests-special): Do not add $(objpfx)begin-end-check.out. ($(objpfx)begin-end-check.out): Remove.
Diffstat (limited to 'wcsmbs')
-rw-r--r--wcsmbs/bits/wchar-ldbl.h4
-rw-r--r--wcsmbs/uchar.h2
-rw-r--r--wcsmbs/wchar.h51
3 files changed, 0 insertions, 57 deletions
diff --git a/wcsmbs/bits/wchar-ldbl.h b/wcsmbs/bits/wchar-ldbl.h
index 2c45aa7..a4d1d4d 100644
--- a/wcsmbs/bits/wchar-ldbl.h
+++ b/wcsmbs/bits/wchar-ldbl.h
@@ -21,7 +21,6 @@
#endif
#if defined __USE_ISOC95 || defined __USE_UNIX98
-__BEGIN_NAMESPACE_C99
__LDBL_REDIR_DECL (fwprintf);
__LDBL_REDIR_DECL (wprintf);
__LDBL_REDIR_DECL (swprintf);
@@ -39,11 +38,9 @@ __LDBL_REDIR_DECL (fwscanf);
__LDBL_REDIR_DECL (wscanf);
__LDBL_REDIR_DECL (swscanf);
# endif
-__END_NAMESPACE_C99
#endif
#ifdef __USE_ISOC99
-__BEGIN_NAMESPACE_C99
__LDBL_REDIR1_DECL (wcstold, wcstod);
# if !defined __USE_GNU && !defined __REDIRECT \
&& (defined __STRICT_ANSI__ || defined __USE_XOPEN2K)
@@ -55,7 +52,6 @@ __LDBL_REDIR_DECL (vfwscanf);
__LDBL_REDIR_DECL (vwscanf);
__LDBL_REDIR_DECL (vswscanf);
# endif
-__END_NAMESPACE_C99
#endif
#ifdef __USE_GNU
diff --git a/wcsmbs/uchar.h b/wcsmbs/uchar.h
index ee771fe..a656982 100644
--- a/wcsmbs/uchar.h
+++ b/wcsmbs/uchar.h
@@ -31,10 +31,8 @@
#include <wchar.h>
#ifndef __mbstate_t_defined
-__BEGIN_NAMESPACE_C99
/* Public type. */
typedef __mbstate_t mbstate_t;
-__END_NAMESPACE_C99
# define __mbstate_t_defined 1
#endif
diff --git a/wcsmbs/wchar.h b/wcsmbs/wchar.h
index de7ef8b..79be9fc 100644
--- a/wcsmbs/wchar.h
+++ b/wcsmbs/wchar.h
@@ -60,15 +60,6 @@
member of the extended character set. */
# define _WINT_T
typedef unsigned int wint_t;
-# else
-/* Work around problems with the <stddef.h> file which doesn't put
- wint_t in the std namespace. */
-# if defined __cplusplus && defined _GLIBCPP_USE_NAMESPACES \
- && defined __WINT_TYPE__
-__BEGIN_NAMESPACE_STD
-typedef __WINT_TYPE__ wint_t;
-__END_NAMESPACE_STD
-# endif
# endif
/* Tell the caller that we provide correct C++ prototypes. */
@@ -102,17 +93,11 @@ typedef struct
#ifdef _WCHAR_H
# ifndef __mbstate_t_defined
-__BEGIN_NAMESPACE_C99
/* Public type. */
typedef __mbstate_t mbstate_t;
-__END_NAMESPACE_C99
# define __mbstate_t_defined 1
# endif
-#ifdef __USE_GNU
-__USING_NAMESPACE_C99(mbstate_t)
-#endif
-
#ifndef WCHAR_MIN
/* These constants might also be defined in <inttypes.h>. */
# define WCHAR_MIN __WCHAR_MIN
@@ -132,18 +117,11 @@ __USING_NAMESPACE_C99(mbstate_t)
__BEGIN_DECLS
-__BEGIN_NAMESPACE_STD
/* This incomplete type is defined in <time.h> but needed here because
of `wcsftime'. */
struct tm;
-__END_NAMESPACE_STD
-/* XXX We have to clean this up at some point. Since tm is in the std
- namespace but wcsftime is in __c99 the type wouldn't be found
- without inserting it in the global namespace. */
-__USING_NAMESPACE_STD(tm)
-__BEGIN_NAMESPACE_STD
/* Copy SRC to DEST. */
extern wchar_t *wcscpy (wchar_t *__restrict __dest,
const wchar_t *__restrict __src)
@@ -169,7 +147,6 @@ extern int wcscmp (const wchar_t *__s1, const wchar_t *__s2)
/* Compare N wide-characters of S1 and S2. */
extern int wcsncmp (const wchar_t *__s1, const wchar_t *__s2, size_t __n)
__THROW __attribute_pure__ __nonnull ((1, 2));
-__END_NAMESPACE_STD
#ifdef __USE_XOPEN2K8
/* Compare S1 and S2, ignoring case. */
@@ -190,7 +167,6 @@ extern int wcsncasecmp_l (const wchar_t *__s1, const wchar_t *__s2,
size_t __n, __locale_t __loc) __THROW;
#endif
-__BEGIN_NAMESPACE_STD
/* Compare S1 and S2, both interpreted as appropriate to the
LC_COLLATE category of the current locale. */
extern int wcscoll (const wchar_t *__s1, const wchar_t *__s2) __THROW;
@@ -199,7 +175,6 @@ extern int wcscoll (const wchar_t *__s1, const wchar_t *__s2) __THROW;
`wcscoll' to the original strings. */
extern size_t wcsxfrm (wchar_t *__restrict __s1,
const wchar_t *__restrict __s2, size_t __n) __THROW;
-__END_NAMESPACE_STD
#ifdef __USE_XOPEN2K8
/* Similar to the two functions above but take the information from
@@ -220,7 +195,6 @@ extern size_t wcsxfrm_l (wchar_t *__s1, const wchar_t *__s2,
extern wchar_t *wcsdup (const wchar_t *__s) __THROW __attribute_malloc__;
#endif
-__BEGIN_NAMESPACE_STD
/* Find the first occurrence of WC in WCS. */
#ifdef __CORRECT_ISO_CPP_WCHAR_H_PROTO
extern "C++" wchar_t *wcschr (wchar_t *__wcs, wchar_t __wc)
@@ -241,7 +215,6 @@ extern "C++" const wchar_t *wcsrchr (const wchar_t *__wcs, wchar_t __wc)
extern wchar_t *wcsrchr (const wchar_t *__wcs, wchar_t __wc)
__THROW __attribute_pure__;
#endif
-__END_NAMESPACE_STD
#ifdef __USE_GNU
/* This function is similar to `wcschr'. But it returns a pointer to
@@ -250,7 +223,6 @@ extern wchar_t *wcschrnul (const wchar_t *__s, wchar_t __wc)
__THROW __attribute_pure__;
#endif
-__BEGIN_NAMESPACE_STD
/* Return the length of the initial segmet of WCS which
consists entirely of wide characters not in REJECT. */
extern size_t wcscspn (const wchar_t *__wcs, const wchar_t *__reject)
@@ -289,7 +261,6 @@ extern wchar_t *wcstok (wchar_t *__restrict __s,
/* Return the number of wide characters in S. */
extern size_t wcslen (const wchar_t *__s) __THROW __attribute_pure__;
-__END_NAMESPACE_STD
#ifdef __USE_XOPEN
/* Another name for `wcsstr' from XPG4. */
@@ -312,7 +283,6 @@ extern size_t wcsnlen (const wchar_t *__s, size_t __maxlen)
#endif
-__BEGIN_NAMESPACE_STD
/* Search N wide characters of S for C. */
#ifdef __CORRECT_ISO_CPP_WCHAR_H_PROTO
extern "C++" wchar_t *wmemchr (wchar_t *__s, wchar_t __c, size_t __n)
@@ -340,7 +310,6 @@ extern wchar_t *wmemmove (wchar_t *__s1, const wchar_t *__s2, size_t __n)
/* Set N wide characters of S to C. */
extern wchar_t *wmemset (wchar_t *__s, wchar_t __c, size_t __n) __THROW;
-__END_NAMESPACE_STD
#ifdef __USE_GNU
/* Copy N wide characters of SRC to DEST and return pointer to following
@@ -351,7 +320,6 @@ extern wchar_t *wmempcpy (wchar_t *__restrict __s1,
#endif
-__BEGIN_NAMESPACE_STD
/* Determine whether C constitutes a valid (one-byte) multibyte
character. */
extern wint_t btowc (int __c) __THROW;
@@ -379,7 +347,6 @@ extern size_t __mbrlen (const char *__restrict __s, size_t __n,
mbstate_t *__restrict __ps) __THROW;
extern size_t mbrlen (const char *__restrict __s, size_t __n,
mbstate_t *__restrict __ps) __THROW;
-__END_NAMESPACE_STD
#ifdef __USE_EXTERN_INLINES
/* Define inline function as optimization. */
@@ -406,7 +373,6 @@ __NTH (mbrlen (const char *__restrict __s, size_t __n,
? mbrtowc (NULL, __s, __n, __ps) : __mbrlen (__s, __n, NULL)); }
#endif
-__BEGIN_NAMESPACE_STD
/* Write wide character representation of multibyte character string
SRC to DST. */
extern size_t mbsrtowcs (wchar_t *__restrict __dst,
@@ -418,7 +384,6 @@ extern size_t mbsrtowcs (wchar_t *__restrict __dst,
extern size_t wcsrtombs (char *__restrict __dst,
const wchar_t **__restrict __src, size_t __len,
mbstate_t *__restrict __ps) __THROW;
-__END_NAMESPACE_STD
#ifdef __USE_XOPEN2K8
@@ -448,25 +413,20 @@ extern int wcswidth (const wchar_t *__s, size_t __n) __THROW;
#endif /* Use X/Open. */
-__BEGIN_NAMESPACE_STD
/* Convert initial portion of the wide string NPTR to `double'
representation. */
extern double wcstod (const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr) __THROW;
-__END_NAMESPACE_STD
#ifdef __USE_ISOC99
-__BEGIN_NAMESPACE_C99
/* Likewise for `float' and `long double' sizes of floating-point numbers. */
extern float wcstof (const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr) __THROW;
extern long double wcstold (const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr) __THROW;
-__END_NAMESPACE_C99
#endif /* C99 */
-__BEGIN_NAMESPACE_STD
/* Convert initial portion of wide string NPTR to `long int'
representation. */
extern long int wcstol (const wchar_t *__restrict __nptr,
@@ -477,10 +437,8 @@ extern long int wcstol (const wchar_t *__restrict __nptr,
extern unsigned long int wcstoul (const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr, int __base)
__THROW;
-__END_NAMESPACE_STD
#ifdef __USE_ISOC99
-__BEGIN_NAMESPACE_C99
/* Convert initial portion of wide string NPTR to `long long int'
representation. */
__extension__
@@ -494,7 +452,6 @@ __extension__
extern unsigned long long int wcstoull (const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr,
int __base) __THROW;
-__END_NAMESPACE_C99
#endif /* ISO C99. */
#ifdef __USE_GNU
@@ -587,7 +544,6 @@ extern __FILE *open_wmemstream (wchar_t **__bufloc, size_t *__sizeloc) __THROW;
#endif
#if defined __USE_ISOC95 || defined __USE_UNIX98
-__BEGIN_NAMESPACE_STD
/* Select orientation for stream. */
extern int fwide (__FILE *__fp, int __mode) __THROW;
@@ -683,11 +639,9 @@ extern int __isoc99_swscanf (const wchar_t *__restrict __s,
# endif
# endif
-__END_NAMESPACE_STD
#endif /* Use ISO C95, C99 and Unix98. */
#ifdef __USE_ISOC99
-__BEGIN_NAMESPACE_C99
/* Read formatted input from S into argument list ARG.
This function is a possible cancellation point and therefore not
@@ -739,11 +693,9 @@ extern int __isoc99_vswscanf (const wchar_t *__restrict __s,
# endif
# endif
-__END_NAMESPACE_C99
#endif /* Use ISO C99. */
-__BEGIN_NAMESPACE_STD
/* Read a character from STREAM.
These functions are possible cancellation points and therefore not
@@ -793,7 +745,6 @@ extern int fputws (const wchar_t *__restrict __ws,
This function is a possible cancellation point and therefore not
marked with __THROW. */
extern wint_t ungetwc (wint_t __wc, __FILE *__stream);
-__END_NAMESPACE_STD
#ifdef __USE_GNU
@@ -854,14 +805,12 @@ extern int fputws_unlocked (const wchar_t *__restrict __ws,
#endif
-__BEGIN_NAMESPACE_C99
/* Format TP into S according to FORMAT.
Write no more than MAXSIZE wide characters and return the number
of wide characters written, or 0 if it would exceed MAXSIZE. */
extern size_t wcsftime (wchar_t *__restrict __s, size_t __maxsize,
const wchar_t *__restrict __format,
const struct tm *__restrict __tp) __THROW;
-__END_NAMESPACE_C99
# ifdef __USE_GNU
# include <xlocale.h>