From 22f6e9e8c4100e53b418700c3611dde6572dea59 Mon Sep 17 00:00:00 2001 From: Bruno Haible Date: Mon, 4 Sep 2023 19:22:21 +0200 Subject: [PATCH] Fix some g++ warnings "has a different exception specifier". * m4/gnulib-common.m4 (gl_COMMON_BODY): Make _GL_ATTRIBUTE_NOTHROW effective in C++ mode. * lib/attribute.h (ATTRIBUTE_NOTHROW): Add a comment. * lib/malloc.in.h (_GL_ATTRIBUTE_NOTHROW): Provide fallback definition. (memalign): Invoke _GL_FUNCDECL_SYS with _GL_ATTRIBUTE_NOTHROW. * lib/stdio.in.h (_GL_ATTRIBUTE_NOTHROW): Provide fallback definition. (fdopen): Invoke _GL_FUNCDECL_SYS with _GL_ATTRIBUTE_NOTHROW. * lib/stdlib.in.h (_GL_ATTRIBUTE_NOTHROW): Provide fallback definition. (aligned_alloc, calloc, canonicalize_file_name, malloc, realloc): Invoke _GL_FUNCDECL_SYS with _GL_ATTRIBUTE_NOTHROW. * lib/string.in.h (_GL_ATTRIBUTE_NOTHROW): Provide fallback definition. (strdup, strndup): Invoke _GL_FUNCDECL_SYS with _GL_ATTRIBUTE_NOTHROW. * lib/sys_stat.in.h (_GL_ATTRIBUTE_NOTHROW): Provide fallback definition. (getumask): Invoke _GL_FUNCDECL_SYS with _GL_ATTRIBUTE_NOTHROW. * lib/wchar.in.h (_GL_ATTRIBUTE_NOTHROW): Provide fallback definition. (wcsdup): Invoke _GL_FUNCDECL_SYS with _GL_ATTRIBUTE_NOTHROW. --- ChangeLog | 21 +++++++++ lib/attribute.h | 2 + lib/malloc.in.h | 40 ++++++++++++++++- lib/stdio.in.h | 41 ++++++++++++++++- lib/stdlib.in.h | 107 +++++++++++++++++++++++++++++++++++++++++--- lib/string.in.h | 57 ++++++++++++++++++++++- lib/sys_stat.in.h | 30 ++++++++++++- lib/wchar.in.h | 46 ++++++++++++++++++- m4/gnulib-common.m4 | 22 +++++++-- 9 files changed, 352 insertions(+), 14 deletions(-) diff --git a/ChangeLog b/ChangeLog index c12027ad7f..ae86e808ad 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,24 @@ +2023-09-04 Bruno Haible + + Fix some g++ warnings "has a different exception specifier". + * m4/gnulib-common.m4 (gl_COMMON_BODY): Make _GL_ATTRIBUTE_NOTHROW + effective in C++ mode. + * lib/attribute.h (ATTRIBUTE_NOTHROW): Add a comment. + * lib/malloc.in.h (_GL_ATTRIBUTE_NOTHROW): Provide fallback definition. + (memalign): Invoke _GL_FUNCDECL_SYS with _GL_ATTRIBUTE_NOTHROW. + * lib/stdio.in.h (_GL_ATTRIBUTE_NOTHROW): Provide fallback definition. + (fdopen): Invoke _GL_FUNCDECL_SYS with _GL_ATTRIBUTE_NOTHROW. + * lib/stdlib.in.h (_GL_ATTRIBUTE_NOTHROW): Provide fallback definition. + (aligned_alloc, calloc, canonicalize_file_name, malloc, realloc): Invoke + _GL_FUNCDECL_SYS with _GL_ATTRIBUTE_NOTHROW. + * lib/string.in.h (_GL_ATTRIBUTE_NOTHROW): Provide fallback definition. + (strdup, strndup): Invoke _GL_FUNCDECL_SYS with _GL_ATTRIBUTE_NOTHROW. + * lib/sys_stat.in.h (_GL_ATTRIBUTE_NOTHROW): Provide fallback + definition. + (getumask): Invoke _GL_FUNCDECL_SYS with _GL_ATTRIBUTE_NOTHROW. + * lib/wchar.in.h (_GL_ATTRIBUTE_NOTHROW): Provide fallback definition. + (wcsdup): Invoke _GL_FUNCDECL_SYS with _GL_ATTRIBUTE_NOTHROW. + 2023-09-04 Bruno Haible pipe-filter-gi, pipe-filter-ii tests: Fix some gcc -Wshadow warnings. diff --git a/lib/attribute.h b/lib/attribute.h index 9464fde0f3..e4e36092b0 100644 --- a/lib/attribute.h +++ b/lib/attribute.h @@ -182,6 +182,8 @@ /* The function does not throw exceptions. */ /* Applies to: functions. */ +/* After a function's parameter list, this attribute must come first, before + other attributes. */ #define ATTRIBUTE_NOTHROW _GL_ATTRIBUTE_NOTHROW /* Do not inline the function. */ diff --git a/lib/malloc.in.h b/lib/malloc.in.h index fe0e87c9c9..a3393894ea 100644 --- a/lib/malloc.in.h +++ b/lib/malloc.in.h @@ -46,7 +46,8 @@ #ifndef _@GUARD_PREFIX@_MALLOC_H #define _@GUARD_PREFIX@_MALLOC_H -/* This file uses _GL_ATTRIBUTE_DEALLOC, GNULIB_POSIXCHECK, HAVE_RAW_DECL_*. */ +/* This file uses _GL_ATTRIBUTE_DEALLOC, _GL_ATTRIBUTE_NOTHROW, + GNULIB_POSIXCHECK, HAVE_RAW_DECL_*. */ #if !_GL_CONFIG_H_INCLUDED #error "Please include config.h first." #endif @@ -59,6 +60,29 @@ /* Get size_t. */ #include + +/* _GL_ATTRIBUTE_NOTHROW declares that the function does not throw exceptions. + */ +#ifndef _GL_ATTRIBUTE_NOTHROW +# if defined __cplusplus +# if (__GNUC__ + (__GNUC_MINOR__ >= 8) > 2) || __clang_major >= 4 +# if __cplusplus >= 201103L +# define _GL_ATTRIBUTE_NOTHROW noexcept (true) +# else +# define _GL_ATTRIBUTE_NOTHROW throw () +# endif +# else +# define _GL_ATTRIBUTE_NOTHROW +# endif +# else +# if (__GNUC__ + (__GNUC_MINOR__ >= 3) > 3) || defined __clang__ +# define _GL_ATTRIBUTE_NOTHROW __attribute__ ((__nothrow__)) +# else +# define _GL_ATTRIBUTE_NOTHROW +# endif +# endif +#endif + /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ /* The definition of _GL_WARN_ON_USE is copied here. */ @@ -125,9 +149,16 @@ _GL_CXXALIAS_RPL (memalign, void *, (size_t alignment, size_t size)); # if @HAVE_MEMALIGN@ # if __GNUC__ >= 11 /* For -Wmismatched-dealloc: Associate memalign with free or rpl_free. */ +# if __GLIBC__ + (__GLIBC_MINOR__ >= 14) > 2 _GL_FUNCDECL_SYS (memalign, void *, (size_t alignment, size_t size) + _GL_ATTRIBUTE_NOTHROW _GL_ATTRIBUTE_DEALLOC_FREE); +# else +_GL_FUNCDECL_SYS (memalign, void *, + (size_t alignment, size_t size) + _GL_ATTRIBUTE_DEALLOC_FREE); +# endif # endif _GL_CXXALIAS_SYS (memalign, void *, (size_t alignment, size_t size)); # endif @@ -138,9 +169,16 @@ _GL_CXXALIASWARN (memalign); #else # if __GNUC__ >= 11 && !defined memalign /* For -Wmismatched-dealloc: Associate memalign with free or rpl_free. */ +# if __GLIBC__ + (__GLIBC_MINOR__ >= 14) > 2 _GL_FUNCDECL_SYS (memalign, void *, (size_t alignment, size_t size) + _GL_ATTRIBUTE_NOTHROW _GL_ATTRIBUTE_DEALLOC_FREE); +# else +_GL_FUNCDECL_SYS (memalign, void *, + (size_t alignment, size_t size) + _GL_ATTRIBUTE_DEALLOC_FREE); +# endif # endif # if defined GNULIB_POSIXCHECK # undef memalign diff --git a/lib/stdio.in.h b/lib/stdio.in.h index 6be12c0525..118874d877 100644 --- a/lib/stdio.in.h +++ b/lib/stdio.in.h @@ -58,7 +58,8 @@ #define _@GUARD_PREFIX@_STDIO_H /* This file uses _GL_ATTRIBUTE_DEALLOC, _GL_ATTRIBUTE_FORMAT, - _GL_ATTRIBUTE_MALLOC, GNULIB_POSIXCHECK, HAVE_RAW_DECL_*. */ + _GL_ATTRIBUTE_MALLOC, _GL_ATTRIBUTE_NOTHROW, GNULIB_POSIXCHECK, + HAVE_RAW_DECL_*. */ #if !_GL_CONFIG_H_INCLUDED #error "Please include config.h first." #endif @@ -143,6 +144,28 @@ # endif #endif +/* _GL_ATTRIBUTE_NOTHROW declares that the function does not throw exceptions. + */ +#ifndef _GL_ATTRIBUTE_NOTHROW +# if defined __cplusplus +# if (__GNUC__ + (__GNUC_MINOR__ >= 8) > 2) || __clang_major >= 4 +# if __cplusplus >= 201103L +# define _GL_ATTRIBUTE_NOTHROW noexcept (true) +# else +# define _GL_ATTRIBUTE_NOTHROW throw () +# endif +# else +# define _GL_ATTRIBUTE_NOTHROW +# endif +# else +# if (__GNUC__ + (__GNUC_MINOR__ >= 3) > 3) || defined __clang__ +# define _GL_ATTRIBUTE_NOTHROW __attribute__ ((__nothrow__)) +# else +# define _GL_ATTRIBUTE_NOTHROW +# endif +# endif +#endif + /* An __attribute__ __format__ specifier for a function that takes a format string and arguments, where the format string directives are the ones standardized by ISO C99 and POSIX. @@ -344,10 +367,18 @@ _GL_CXXALIAS_MDA (fdopen, FILE *, (int fd, const char *mode)); # else # if __GNUC__ >= 11 /* For -Wmismatched-dealloc: Associate fdopen with fclose or rpl_fclose. */ +# if __GLIBC__ + (__GLIBC_MINOR__ >= 2) > 2 +_GL_FUNCDECL_SYS (fdopen, FILE *, + (int fd, const char *mode) + _GL_ATTRIBUTE_NOTHROW + _GL_ARG_NONNULL ((2)) _GL_ATTRIBUTE_DEALLOC (fclose, 1) + _GL_ATTRIBUTE_MALLOC); +# else _GL_FUNCDECL_SYS (fdopen, FILE *, (int fd, const char *mode) _GL_ARG_NONNULL ((2)) _GL_ATTRIBUTE_DEALLOC (fclose, 1) _GL_ATTRIBUTE_MALLOC); +# endif # endif _GL_CXXALIAS_SYS (fdopen, FILE *, (int fd, const char *mode)); # endif @@ -355,10 +386,18 @@ _GL_CXXALIASWARN (fdopen); #else # if @GNULIB_FCLOSE@ && __GNUC__ >= 11 && !defined fdopen /* For -Wmismatched-dealloc: Associate fdopen with fclose or rpl_fclose. */ +# if __GLIBC__ + (__GLIBC_MINOR__ >= 2) > 2 _GL_FUNCDECL_SYS (fdopen, FILE *, (int fd, const char *mode) + _GL_ATTRIBUTE_NOTHROW _GL_ARG_NONNULL ((2)) _GL_ATTRIBUTE_DEALLOC (fclose, 1) _GL_ATTRIBUTE_MALLOC); +# else +_GL_FUNCDECL_SYS (fdopen, FILE *, + (int fd, const char *mode) + _GL_ARG_NONNULL ((2)) _GL_ATTRIBUTE_DEALLOC (fclose, 1) + _GL_ATTRIBUTE_MALLOC); +# endif # endif # if defined GNULIB_POSIXCHECK # undef fdopen diff --git a/lib/stdlib.in.h b/lib/stdlib.in.h index 1479a2b287..57603716b6 100644 --- a/lib/stdlib.in.h +++ b/lib/stdlib.in.h @@ -38,7 +38,8 @@ #define _@GUARD_PREFIX@_STDLIB_H /* This file uses _Noreturn, _GL_ATTRIBUTE_DEALLOC, _GL_ATTRIBUTE_MALLOC, - _GL_ATTRIBUTE_PURE, GNULIB_POSIXCHECK, HAVE_RAW_DECL_*. */ + _GL_ATTRIBUTE_NOTHROW, _GL_ATTRIBUTE_PURE, GNULIB_POSIXCHECK, + HAVE_RAW_DECL_*. */ #if !_GL_CONFIG_H_INCLUDED #error "Please include config.h first." #endif @@ -132,6 +133,28 @@ struct random_data # endif #endif +/* _GL_ATTRIBUTE_NOTHROW declares that the function does not throw exceptions. + */ +#ifndef _GL_ATTRIBUTE_NOTHROW +# if defined __cplusplus +# if (__GNUC__ + (__GNUC_MINOR__ >= 8) > 2) || __clang_major >= 4 +# if __cplusplus >= 201103L +# define _GL_ATTRIBUTE_NOTHROW noexcept (true) +# else +# define _GL_ATTRIBUTE_NOTHROW throw () +# endif +# else +# define _GL_ATTRIBUTE_NOTHROW +# endif +# else +# if (__GNUC__ + (__GNUC_MINOR__ >= 3) > 3) || defined __clang__ +# define _GL_ATTRIBUTE_NOTHROW __attribute__ ((__nothrow__)) +# else +# define _GL_ATTRIBUTE_NOTHROW +# endif +# endif +#endif + /* The __attribute__ feature is available in gcc versions 2.5 and later. The attribute __pure__ was added in gcc 2.96. */ #ifndef _GL_ATTRIBUTE_PURE @@ -234,9 +257,16 @@ _GL_CXXALIAS_RPL (aligned_alloc, void *, (size_t alignment, size_t size)); # if @HAVE_ALIGNED_ALLOC@ # if __GNUC__ >= 11 /* For -Wmismatched-dealloc: Associate aligned_alloc with free or rpl_free. */ +# if __GLIBC__ + (__GLIBC_MINOR__ >= 16) > 2 _GL_FUNCDECL_SYS (aligned_alloc, void *, (size_t alignment, size_t size) + _GL_ATTRIBUTE_NOTHROW _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE); +# else +_GL_FUNCDECL_SYS (aligned_alloc, void *, + (size_t alignment, size_t size) + _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE); +# endif # endif _GL_CXXALIAS_SYS (aligned_alloc, void *, (size_t alignment, size_t size)); # endif @@ -247,9 +277,16 @@ _GL_CXXALIASWARN (aligned_alloc); #else # if @GNULIB_FREE_POSIX@ && __GNUC__ >= 11 && !defined aligned_alloc /* For -Wmismatched-dealloc: Associate aligned_alloc with free or rpl_free. */ +# if __GLIBC__ + (__GLIBC_MINOR__ >= 16) > 2 +_GL_FUNCDECL_SYS (aligned_alloc, void *, + (size_t alignment, size_t size) + _GL_ATTRIBUTE_NOTHROW + _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE); +# else _GL_FUNCDECL_SYS (aligned_alloc, void *, (size_t alignment, size_t size) _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE); +# endif # endif # if defined GNULIB_POSIXCHECK # undef aligned_alloc @@ -292,9 +329,16 @@ _GL_CXXALIAS_RPL (calloc, void *, (size_t nmemb, size_t size)); # else # if __GNUC__ >= 11 /* For -Wmismatched-dealloc: Associate calloc with free or rpl_free. */ +# if __GLIBC__ + (__GLIBC_MINOR__ >= 14) > 2 +_GL_FUNCDECL_SYS (calloc, void *, + (size_t nmemb, size_t size) + _GL_ATTRIBUTE_NOTHROW + _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE); +# else _GL_FUNCDECL_SYS (calloc, void *, (size_t nmemb, size_t size) _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE); +# endif # endif _GL_CXXALIAS_SYS (calloc, void *, (size_t nmemb, size_t size)); # endif @@ -304,9 +348,16 @@ _GL_CXXALIASWARN (calloc); #else # if @GNULIB_FREE_POSIX@ && __GNUC__ >= 11 && !defined calloc /* For -Wmismatched-dealloc: Associate calloc with free or rpl_free. */ +# if __GLIBC__ + (__GLIBC_MINOR__ >= 14) > 2 _GL_FUNCDECL_SYS (calloc, void *, (size_t nmemb, size_t size) + _GL_ATTRIBUTE_NOTHROW _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE); +# else +_GL_FUNCDECL_SYS (calloc, void *, + (size_t nmemb, size_t size) + _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE); +# endif # endif # if defined GNULIB_POSIXCHECK # undef calloc @@ -328,10 +379,18 @@ _GL_FUNCDECL_RPL (canonicalize_file_name, char *, _GL_CXXALIAS_RPL (canonicalize_file_name, char *, (const char *name)); # else # if !@HAVE_CANONICALIZE_FILE_NAME@ || __GNUC__ >= 11 +# if __GLIBC__ + (__GLIBC_MINOR__ >= 2) > 2 _GL_FUNCDECL_SYS (canonicalize_file_name, char *, (const char *name) + _GL_ATTRIBUTE_NOTHROW _GL_ARG_NONNULL ((1)) _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE); +# else +_GL_FUNCDECL_SYS (canonicalize_file_name, char *, + (const char *name) + _GL_ARG_NONNULL ((1)) + _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE); +# endif # endif _GL_CXXALIAS_SYS (canonicalize_file_name, char *, (const char *name)); # endif @@ -344,10 +403,18 @@ _GL_CXXALIASWARN (canonicalize_file_name); # if @GNULIB_FREE_POSIX@ && __GNUC__ >= 11 && !defined canonicalize_file_name /* For -Wmismatched-dealloc: Associate canonicalize_file_name with free or rpl_free. */ +# if __GLIBC__ + (__GLIBC_MINOR__ >= 2) > 2 +_GL_FUNCDECL_SYS (canonicalize_file_name, char *, + (const char *name) + _GL_ATTRIBUTE_NOTHROW + _GL_ARG_NONNULL ((1)) + _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE); +# else _GL_FUNCDECL_SYS (canonicalize_file_name, char *, (const char *name) _GL_ARG_NONNULL ((1)) _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE); +# endif # endif # if defined GNULIB_POSIXCHECK # undef canonicalize_file_name @@ -569,9 +636,16 @@ _GL_CXXALIAS_RPL (malloc, void *, (size_t size)); # else # if __GNUC__ >= 11 /* For -Wmismatched-dealloc: Associate malloc with free or rpl_free. */ +# if __GLIBC__ + (__GLIBC_MINOR__ >= 14) > 2 +_GL_FUNCDECL_SYS (malloc, void *, + (size_t size) + _GL_ATTRIBUTE_NOTHROW + _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE); +# else _GL_FUNCDECL_SYS (malloc, void *, (size_t size) _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE); +# endif # endif _GL_CXXALIAS_SYS (malloc, void *, (size_t size)); # endif @@ -581,9 +655,16 @@ _GL_CXXALIASWARN (malloc); #else # if @GNULIB_FREE_POSIX@ && __GNUC__ >= 11 && !defined malloc /* For -Wmismatched-dealloc: Associate malloc with free or rpl_free. */ +# if __GLIBC__ + (__GLIBC_MINOR__ >= 14) > 2 +_GL_FUNCDECL_SYS (malloc, void *, + (size_t size) + _GL_ATTRIBUTE_NOTHROW + _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE); +# else _GL_FUNCDECL_SYS (malloc, void *, (size_t size) _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE); +# endif # endif # if defined GNULIB_POSIXCHECK && !_GL_USE_STDLIB_ALLOC # undef malloc @@ -1292,8 +1373,16 @@ _GL_CXXALIAS_RPL (realloc, void *, (void *ptr, size_t size)); # else # if __GNUC__ >= 11 /* For -Wmismatched-dealloc: Associate realloc with free or rpl_free. */ -_GL_FUNCDECL_SYS (realloc, void *, (void *ptr, size_t size) - _GL_ATTRIBUTE_DEALLOC_FREE); +# if __GLIBC__ + (__GLIBC_MINOR__ >= 14) > 2 +_GL_FUNCDECL_SYS (realloc, void *, + (void *ptr, size_t size) + _GL_ATTRIBUTE_NOTHROW + _GL_ATTRIBUTE_DEALLOC_FREE); +# else +_GL_FUNCDECL_SYS (realloc, void *, + (void *ptr, size_t size) + _GL_ATTRIBUTE_DEALLOC_FREE); +# endif # endif _GL_CXXALIAS_SYS (realloc, void *, (void *ptr, size_t size)); # endif @@ -1303,8 +1392,16 @@ _GL_CXXALIASWARN (realloc); #else # if @GNULIB_FREE_POSIX@ && __GNUC__ >= 11 && !defined realloc /* For -Wmismatched-dealloc: Associate realloc with free or rpl_free. */ -_GL_FUNCDECL_SYS (realloc, void *, (void *ptr, size_t size) - _GL_ATTRIBUTE_DEALLOC_FREE); +# if __GLIBC__ + (__GLIBC_MINOR__ >= 14) > 2 +_GL_FUNCDECL_SYS (realloc, void *, + (void *ptr, size_t size) + _GL_ATTRIBUTE_NOTHROW + _GL_ATTRIBUTE_DEALLOC_FREE); +# else +_GL_FUNCDECL_SYS (realloc, void *, + (void *ptr, size_t size) + _GL_ATTRIBUTE_DEALLOC_FREE); +# endif # endif # if defined GNULIB_POSIXCHECK && !_GL_USE_STDLIB_ALLOC # undef realloc diff --git a/lib/string.in.h b/lib/string.in.h index 912d0f7a30..ee1d3c1420 100644 --- a/lib/string.in.h +++ b/lib/string.in.h @@ -45,7 +45,8 @@ #define _@GUARD_PREFIX@_STRING_H /* This file uses _GL_ATTRIBUTE_DEALLOC, _GL_ATTRIBUTE_MALLOC, - _GL_ATTRIBUTE_PURE, GNULIB_POSIXCHECK, HAVE_RAW_DECL_*. */ + _GL_ATTRIBUTE_NOTHROW, _GL_ATTRIBUTE_PURE, GNULIB_POSIXCHECK, + HAVE_RAW_DECL_*. */ #if !_GL_CONFIG_H_INCLUDED #error "Please include config.h first." #endif @@ -110,6 +111,28 @@ # endif #endif +/* _GL_ATTRIBUTE_NOTHROW declares that the function does not throw exceptions. + */ +#ifndef _GL_ATTRIBUTE_NOTHROW +# if defined __cplusplus +# if (__GNUC__ + (__GNUC_MINOR__ >= 8) > 2) || __clang_major >= 4 +# if __cplusplus >= 201103L +# define _GL_ATTRIBUTE_NOTHROW noexcept (true) +# else +# define _GL_ATTRIBUTE_NOTHROW throw () +# endif +# else +# define _GL_ATTRIBUTE_NOTHROW +# endif +# else +# if (__GNUC__ + (__GNUC_MINOR__ >= 3) > 3) || defined __clang__ +# define _GL_ATTRIBUTE_NOTHROW __attribute__ ((__nothrow__)) +# else +# define _GL_ATTRIBUTE_NOTHROW +# endif +# endif +#endif + /* The __attribute__ feature is available in gcc versions 2.5 and later. The attribute __pure__ was added in gcc 2.96. */ #ifndef _GL_ATTRIBUTE_PURE @@ -576,10 +599,18 @@ _GL_CXXALIAS_MDA (strdup, char *, (char const *__s)); # undef strdup # endif # if (!@HAVE_DECL_STRDUP@ || __GNUC__ >= 11) && !defined strdup +# if __GLIBC__ + (__GLIBC_MINOR__ >= 2) > 2 +_GL_FUNCDECL_SYS (strdup, char *, + (char const *__s) + _GL_ATTRIBUTE_NOTHROW + _GL_ARG_NONNULL ((1)) + _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE); +# else _GL_FUNCDECL_SYS (strdup, char *, (char const *__s) _GL_ARG_NONNULL ((1)) _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE); +# endif # endif _GL_CXXALIAS_SYS (strdup, char *, (char const *__s)); # endif @@ -587,10 +618,18 @@ _GL_CXXALIASWARN (strdup); #else # if __GNUC__ >= 11 && !defined strdup /* For -Wmismatched-dealloc: Associate strdup with free or rpl_free. */ +# if __GLIBC__ + (__GLIBC_MINOR__ >= 2) > 2 +_GL_FUNCDECL_SYS (strdup, char *, + (char const *__s) + _GL_ATTRIBUTE_NOTHROW + _GL_ARG_NONNULL ((1)) + _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE); +# else _GL_FUNCDECL_SYS (strdup, char *, (char const *__s) _GL_ARG_NONNULL ((1)) _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE); +# endif # endif # if defined GNULIB_POSIXCHECK # undef strdup @@ -659,10 +698,18 @@ _GL_FUNCDECL_RPL (strndup, char *, _GL_CXXALIAS_RPL (strndup, char *, (char const *__s, size_t __n)); # else # if !@HAVE_DECL_STRNDUP@ || (__GNUC__ >= 11 && !defined strndup) +# if __GLIBC__ + (__GLIBC_MINOR__ >= 2) > 2 _GL_FUNCDECL_SYS (strndup, char *, (char const *__s, size_t __n) + _GL_ATTRIBUTE_NOTHROW _GL_ARG_NONNULL ((1)) _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE); +# else +_GL_FUNCDECL_SYS (strndup, char *, + (char const *__s, size_t __n) + _GL_ARG_NONNULL ((1)) + _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE); +# endif # endif _GL_CXXALIAS_SYS (strndup, char *, (char const *__s, size_t __n)); # endif @@ -670,10 +717,18 @@ _GL_CXXALIASWARN (strndup); #else # if __GNUC__ >= 11 && !defined strndup /* For -Wmismatched-dealloc: Associate strndup with free or rpl_free. */ +# if __GLIBC__ + (__GLIBC_MINOR__ >= 2) > 2 +_GL_FUNCDECL_SYS (strndup, char *, + (char const *__s, size_t __n) + _GL_ATTRIBUTE_NOTHROW + _GL_ARG_NONNULL ((1)) + _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE); +# else _GL_FUNCDECL_SYS (strndup, char *, (char const *__s, size_t __n) _GL_ARG_NONNULL ((1)) _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE); +# endif # endif # if defined GNULIB_POSIXCHECK # undef strndup diff --git a/lib/sys_stat.in.h b/lib/sys_stat.in.h index ad4da17fa4..25a539f705 100644 --- a/lib/sys_stat.in.h +++ b/lib/sys_stat.in.h @@ -55,17 +55,41 @@ #ifndef _@GUARD_PREFIX@_SYS_STAT_H #define _@GUARD_PREFIX@_SYS_STAT_H -/* This file uses GNULIB_POSIXCHECK, HAVE_RAW_DECL_*. */ +/* This file uses _GL_ATTRIBUTE_NOTHROW, GNULIB_POSIXCHECK, HAVE_RAW_DECL_*. */ #if !_GL_CONFIG_H_INCLUDED #error "Please include config.h first." #endif + +/* _GL_ATTRIBUTE_NOTHROW declares that the function does not throw exceptions. + */ +#ifndef _GL_ATTRIBUTE_NOTHROW +# if defined __cplusplus +# if (__GNUC__ + (__GNUC_MINOR__ >= 8) > 2) || __clang_major >= 4 +# if __cplusplus >= 201103L +# define _GL_ATTRIBUTE_NOTHROW noexcept (true) +# else +# define _GL_ATTRIBUTE_NOTHROW throw () +# endif +# else +# define _GL_ATTRIBUTE_NOTHROW +# endif +# else +# if (__GNUC__ + (__GNUC_MINOR__ >= 3) > 3) || defined __clang__ +# define _GL_ATTRIBUTE_NOTHROW __attribute__ ((__nothrow__)) +# else +# define _GL_ATTRIBUTE_NOTHROW +# endif +# endif +#endif + /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ /* The definition of _GL_ARG_NONNULL is copied here. */ /* The definition of _GL_WARN_ON_USE is copied here. */ + /* Before doing "#define mknod rpl_mknod" below, we need to include all headers that may declare mknod(). OS/2 kLIBC declares mknod() in , not in . */ @@ -575,7 +599,11 @@ _GL_WARN_ON_USE (futimens, "futimens is not portable - " #if @GNULIB_GETUMASK@ # if !@HAVE_GETUMASK@ +# if __GLIBC__ + (__GLIBC_MINOR__ >= 2) > 2 +_GL_FUNCDECL_SYS (getumask, mode_t, (void) _GL_ATTRIBUTE_NOTHROW); +# else _GL_FUNCDECL_SYS (getumask, mode_t, (void)); +# endif # endif _GL_CXXALIAS_SYS (getumask, mode_t, (void)); # if @HAVE_GETUMASK@ diff --git a/lib/wchar.in.h b/lib/wchar.in.h index 75f3ed21ff..5d6b2b76bb 100644 --- a/lib/wchar.in.h +++ b/lib/wchar.in.h @@ -85,7 +85,8 @@ #define _@GUARD_PREFIX@_WCHAR_H /* This file uses _GL_ATTRIBUTE_DEALLOC, _GL_ATTRIBUTE_MALLOC, - _GL_ATTRIBUTE_PURE, GNULIB_POSIXCHECK, HAVE_RAW_DECL_*. */ + _GL_ATTRIBUTE_NOTHROW, _GL_ATTRIBUTE_PURE, GNULIB_POSIXCHECK, + HAVE_RAW_DECL_*. */ #if !_GL_CONFIG_H_INCLUDED #error "Please include config.h first." #endif @@ -136,6 +137,28 @@ # endif #endif +/* _GL_ATTRIBUTE_NOTHROW declares that the function does not throw exceptions. + */ +#ifndef _GL_ATTRIBUTE_NOTHROW +# if defined __cplusplus +# if (__GNUC__ + (__GNUC_MINOR__ >= 8) > 2) || __clang_major >= 4 +# if __cplusplus >= 201103L +# define _GL_ATTRIBUTE_NOTHROW noexcept (true) +# else +# define _GL_ATTRIBUTE_NOTHROW throw () +# endif +# else +# define _GL_ATTRIBUTE_NOTHROW +# endif +# else +# if (__GNUC__ + (__GNUC_MINOR__ >= 3) > 3) || defined __clang__ +# define _GL_ATTRIBUTE_NOTHROW __attribute__ ((__nothrow__)) +# else +# define _GL_ATTRIBUTE_NOTHROW +# endif +# endif +#endif + /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ /* The definition of _GL_ARG_NONNULL is copied here. */ @@ -1094,9 +1117,16 @@ _GL_CXXALIAS_MDA (wcsdup, wchar_t *, (const wchar_t *s)); namespace, not in the global namespace. So, force a declaration in the global namespace. */ # if !@HAVE_WCSDUP@ || (defined __sun && defined __cplusplus) || __GNUC__ >= 11 +# if __GLIBC__ + (__GLIBC_MINOR__ >= 2) > 2 +_GL_FUNCDECL_SYS (wcsdup, wchar_t *, + (const wchar_t *s) + _GL_ATTRIBUTE_NOTHROW + _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE); +# else _GL_FUNCDECL_SYS (wcsdup, wchar_t *, (const wchar_t *s) _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE); +# endif # endif _GL_CXXALIAS_SYS (wcsdup, wchar_t *, (const wchar_t *s)); # endif @@ -1104,9 +1134,16 @@ _GL_CXXALIASWARN (wcsdup); #else # if __GNUC__ >= 11 && !defined wcsdup /* For -Wmismatched-dealloc: Associate wcsdup with free or rpl_free. */ +# if __GLIBC__ + (__GLIBC_MINOR__ >= 2) > 2 +_GL_FUNCDECL_SYS (wcsdup, wchar_t *, + (const wchar_t *s) + _GL_ATTRIBUTE_NOTHROW + _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE); +# else _GL_FUNCDECL_SYS (wcsdup, wchar_t *, (const wchar_t *s) _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE); +# endif # endif # if defined GNULIB_POSIXCHECK # undef wcsdup @@ -1125,9 +1162,16 @@ _GL_WARN_ON_USE (wcsdup, "wcsdup is unportable - " # endif _GL_CXXALIAS_MDA (wcsdup, wchar_t *, (const wchar_t *s)); # else +# if __GLIBC__ + (__GLIBC_MINOR__ >= 2) > 2 +_GL_FUNCDECL_SYS (wcsdup, wchar_t *, + (const wchar_t *s) + _GL_ATTRIBUTE_NOTHROW + _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE); +# else _GL_FUNCDECL_SYS (wcsdup, wchar_t *, (const wchar_t *s) _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE); +# endif # if @HAVE_DECL_WCSDUP@ _GL_CXXALIAS_SYS (wcsdup, wchar_t *, (const wchar_t *s)); # endif diff --git a/m4/gnulib-common.m4 b/m4/gnulib-common.m4 index 2426eb6398..c372316135 100644 --- a/m4/gnulib-common.m4 +++ b/m4/gnulib-common.m4 @@ -1,4 +1,4 @@ -# gnulib-common.m4 serial 87 +# gnulib-common.m4 serial 88 dnl Copyright (C) 2007-2023 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -466,11 +466,25 @@ AC_DEFUN([gl_COMMON_BODY], [ /* _GL_ATTRIBUTE_NOTHROW declares that the function does not throw exceptions. */ /* Applies to: functions. */ +/* After a function's parameter list, this attribute must come first, before + other attributes. */ #ifndef _GL_ATTRIBUTE_NOTHROW -# if _GL_HAS_ATTRIBUTE (nothrow) && !defined __cplusplus -# define _GL_ATTRIBUTE_NOTHROW __attribute__ ((__nothrow__)) +# if defined __cplusplus +# if _GL_GNUC_PREREQ (2, 8) || __clang_major >= 4 +# if __cplusplus >= 201103L +# define _GL_ATTRIBUTE_NOTHROW noexcept (true) +# else +# define _GL_ATTRIBUTE_NOTHROW throw () +# endif +# else +# define _GL_ATTRIBUTE_NOTHROW +# endif # else -# define _GL_ATTRIBUTE_NOTHROW +# if _GL_HAS_ATTRIBUTE (nothrow) +# define _GL_ATTRIBUTE_NOTHROW __attribute__ ((__nothrow__)) +# else +# define _GL_ATTRIBUTE_NOTHROW +# endif # endif #endif -- 2.39.5