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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 /time
parentd6fc3f6516cd20f195758086fbbbe3f17a8a6d95 (diff)
downloadglibc-2072f5c34ede81dde9e0d953d57a0690a66b0f12.tar.gz
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 'time')
-rw-r--r--time/bits/types/clock_t.h6
-rw-r--r--time/bits/types/struct_tm.h5
-rw-r--r--time/bits/types/time_t.h5
-rw-r--r--time/time.h6
4 files changed, 0 insertions, 22 deletions
diff --git a/time/bits/types/clock_t.h b/time/bits/types/clock_t.h
index b8cbaf2cb6..ce97248f88 100644
--- a/time/bits/types/clock_t.h
+++ b/time/bits/types/clock_t.h
@@ -3,13 +3,7 @@
#include <bits/types.h>
-__BEGIN_NAMESPACE_STD
/* Returned by `clock'. */
typedef __clock_t clock_t;
-__END_NAMESPACE_STD
-
-#if defined __USE_XOPEN || defined __USE_POSIX
-__USING_NAMESPACE_STD(clock_t)
-#endif
#endif
diff --git a/time/bits/types/struct_tm.h b/time/bits/types/struct_tm.h
index 8f5af16715..b13b631228 100644
--- a/time/bits/types/struct_tm.h
+++ b/time/bits/types/struct_tm.h
@@ -4,7 +4,6 @@
#include <bits/types.h>
/* ISO C `broken-down time' structure. */
-__BEGIN_NAMESPACE_STD
struct tm
{
int tm_sec; /* Seconds. [0-60] (1 leap second) */
@@ -25,9 +24,5 @@ struct tm
const char *__tm_zone; /* Timezone abbreviation. */
# endif
};
-__END_NAMESPACE_STD
-#if defined __USE_XOPEN || defined __USE_POSIX
-__USING_NAMESPACE_STD(tm)
-#endif
#endif
diff --git a/time/bits/types/time_t.h b/time/bits/types/time_t.h
index 16e5269184..ab8287c6fe 100644
--- a/time/bits/types/time_t.h
+++ b/time/bits/types/time_t.h
@@ -3,12 +3,7 @@
#include <bits/types.h>
-__BEGIN_NAMESPACE_STD
/* Returned by `time'. */
typedef __time_t time_t;
-__END_NAMESPACE_STD
-#ifdef __USE_POSIX
-__USING_NAMESPACE_STD(time_t)
-#endif
#endif
diff --git a/time/time.h b/time/time.h
index 7f98338abe..bb4994feee 100644
--- a/time/time.h
+++ b/time/time.h
@@ -67,7 +67,6 @@ typedef __pid_t pid_t;
__BEGIN_DECLS
-__BEGIN_NAMESPACE_STD
/* Time used by the program so far (user time + system time).
The result / CLOCKS_PER_SECOND is program time in seconds. */
extern clock_t clock (void) __THROW;
@@ -89,7 +88,6 @@ extern time_t mktime (struct tm *__tp) __THROW;
extern size_t strftime (char *__restrict __s, size_t __maxsize,
const char *__restrict __format,
const struct tm *__restrict __tp) __THROW;
-__END_NAMESPACE_STD
#ifdef __USE_XOPEN
/* Parse S according to FORMAT and store binary time information in TP.
@@ -116,7 +114,6 @@ extern char *strptime_l (const char *__restrict __s,
#endif
-__BEGIN_NAMESPACE_STD
/* Return the `struct tm' representation of *TIMER
in Universal Coordinated Time (aka Greenwich Mean Time). */
extern struct tm *gmtime (const time_t *__timer) __THROW;
@@ -124,7 +121,6 @@ extern struct tm *gmtime (const time_t *__timer) __THROW;
/* Return the `struct tm' representation
of *TIMER in the local timezone. */
extern struct tm *localtime (const time_t *__timer) __THROW;
-__END_NAMESPACE_STD
#ifdef __USE_POSIX
/* Return the `struct tm' representation of *TIMER in UTC,
@@ -138,14 +134,12 @@ extern struct tm *localtime_r (const time_t *__restrict __timer,
struct tm *__restrict __tp) __THROW;
#endif /* POSIX */
-__BEGIN_NAMESPACE_STD
/* Return a string of the form "Day Mon dd hh:mm:ss yyyy\n"
that is the representation of TP in this format. */
extern char *asctime (const struct tm *__tp) __THROW;
/* Equivalent to `asctime (localtime (timer))'. */
extern char *ctime (const time_t *__timer) __THROW;
-__END_NAMESPACE_STD
#ifdef __USE_POSIX
/* Reentrant versions of the above functions. */