diff options
Diffstat (limited to 'lib/wchar.in.h')
| -rw-r--r-- | lib/wchar.in.h | 67 |
1 files changed, 45 insertions, 22 deletions
diff --git a/lib/wchar.in.h b/lib/wchar.in.h index 34d2c29995..11beb5ad21 100644 --- a/lib/wchar.in.h +++ b/lib/wchar.in.h @@ -83,6 +83,14 @@ #ifndef _@GUARD_PREFIX@_WCHAR_H #define _@GUARD_PREFIX@_WCHAR_H +/* The __attribute__ feature is available in gcc versions 2.5 and later. + The attribute __pure__ was added in gcc 2.96. */ +#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96) +# define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__)) +#else +# define _GL_ATTRIBUTE_PURE /* empty */ +#endif + /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ /* The definition of _GL_ARG_NONNULL is copied here. */ @@ -135,11 +143,11 @@ typedef int rpl_mbstate_t; # undef btowc # define btowc rpl_btowc # endif -_GL_FUNCDECL_RPL (btowc, wint_t, (int c)); +_GL_FUNCDECL_RPL (btowc, wint_t, (int c) _GL_ATTRIBUTE_PURE); _GL_CXXALIAS_RPL (btowc, wint_t, (int c)); # else # if !@HAVE_BTOWC@ -_GL_FUNCDECL_SYS (btowc, wint_t, (int c)); +_GL_FUNCDECL_SYS (btowc, wint_t, (int c) _GL_ATTRIBUTE_PURE); # endif _GL_CXXALIAS_SYS (btowc, wint_t, (int c)); # endif @@ -160,12 +168,12 @@ _GL_WARN_ON_USE (btowc, "btowc is unportable - " # undef wctob # define wctob rpl_wctob # endif -_GL_FUNCDECL_RPL (wctob, int, (wint_t wc)); +_GL_FUNCDECL_RPL (wctob, int, (wint_t wc) _GL_ATTRIBUTE_PURE); _GL_CXXALIAS_RPL (wctob, int, (wint_t wc)); # else # if !defined wctob && !@HAVE_DECL_WCTOB@ /* wctob is provided by gnulib, or wctob exists but is not declared. */ -_GL_FUNCDECL_SYS (wctob, int, (wint_t wc)); +_GL_FUNCDECL_SYS (wctob, int, (wint_t wc) _GL_ATTRIBUTE_PURE); # endif _GL_CXXALIAS_SYS (wctob, int, (wint_t wc)); # endif @@ -426,12 +434,12 @@ _GL_WARN_ON_USE (wcsnrtombs, "wcsnrtombs is unportable - " # undef wcwidth # define wcwidth rpl_wcwidth # endif -_GL_FUNCDECL_RPL (wcwidth, int, (wchar_t)); +_GL_FUNCDECL_RPL (wcwidth, int, (wchar_t) _GL_ATTRIBUTE_PURE); _GL_CXXALIAS_RPL (wcwidth, int, (wchar_t)); # else # if !@HAVE_DECL_WCWIDTH@ /* wcwidth exists but is not declared. */ -_GL_FUNCDECL_SYS (wcwidth, int, (wchar_t)); +_GL_FUNCDECL_SYS (wcwidth, int, (wchar_t) _GL_ATTRIBUTE_PURE); # endif _GL_CXXALIAS_SYS (wcwidth, int, (wchar_t)); # endif @@ -448,7 +456,8 @@ _GL_WARN_ON_USE (wcwidth, "wcwidth is unportable - " /* Search N wide characters of S for C. */ #if @GNULIB_WMEMCHR@ # if !@HAVE_WMEMCHR@ -_GL_FUNCDECL_SYS (wmemchr, wchar_t *, (const wchar_t *s, wchar_t c, size_t n)); +_GL_FUNCDECL_SYS (wmemchr, wchar_t *, (const wchar_t *s, wchar_t c, size_t n) + _GL_ATTRIBUTE_PURE); # endif /* On some systems, this function is defined as an overloaded function: extern "C++" { @@ -479,7 +488,8 @@ _GL_WARN_ON_USE (wmemchr, "wmemchr is unportable - " #if @GNULIB_WMEMCMP@ # if !@HAVE_WMEMCMP@ _GL_FUNCDECL_SYS (wmemcmp, int, - (const wchar_t *s1, const wchar_t *s2, size_t n)); + (const wchar_t *s1, const wchar_t *s2, size_t n) + _GL_ATTRIBUTE_PURE); # endif _GL_CXXALIAS_SYS (wmemcmp, int, (const wchar_t *s1, const wchar_t *s2, size_t n)); @@ -549,7 +559,7 @@ _GL_WARN_ON_USE (wmemset, "wmemset is unportable - " /* Return the number of wide characters in S. */ #if @GNULIB_WCSLEN@ # if !@HAVE_WCSLEN@ -_GL_FUNCDECL_SYS (wcslen, size_t, (const wchar_t *s)); +_GL_FUNCDECL_SYS (wcslen, size_t, (const wchar_t *s) _GL_ATTRIBUTE_PURE); # endif _GL_CXXALIAS_SYS (wcslen, size_t, (const wchar_t *s)); _GL_CXXALIASWARN (wcslen); @@ -565,7 +575,8 @@ _GL_WARN_ON_USE (wcslen, "wcslen is unportable - " /* Return the number of wide characters in S, but at most MAXLEN. */ #if @GNULIB_WCSNLEN@ # if !@HAVE_WCSNLEN@ -_GL_FUNCDECL_SYS (wcsnlen, size_t, (const wchar_t *s, size_t maxlen)); +_GL_FUNCDECL_SYS (wcsnlen, size_t, (const wchar_t *s, size_t maxlen) + _GL_ATTRIBUTE_PURE); # endif _GL_CXXALIAS_SYS (wcsnlen, size_t, (const wchar_t *s, size_t maxlen)); _GL_CXXALIASWARN (wcsnlen); @@ -684,7 +695,8 @@ _GL_WARN_ON_USE (wcsncat, "wcsncat is unportable - " /* Compare S1 and S2. */ #if @GNULIB_WCSCMP@ # if !@HAVE_WCSCMP@ -_GL_FUNCDECL_SYS (wcscmp, int, (const wchar_t *s1, const wchar_t *s2)); +_GL_FUNCDECL_SYS (wcscmp, int, (const wchar_t *s1, const wchar_t *s2) + _GL_ATTRIBUTE_PURE); # endif _GL_CXXALIAS_SYS (wcscmp, int, (const wchar_t *s1, const wchar_t *s2)); _GL_CXXALIASWARN (wcscmp); @@ -701,7 +713,8 @@ _GL_WARN_ON_USE (wcscmp, "wcscmp is unportable - " #if @GNULIB_WCSNCMP@ # if !@HAVE_WCSNCMP@ _GL_FUNCDECL_SYS (wcsncmp, int, - (const wchar_t *s1, const wchar_t *s2, size_t n)); + (const wchar_t *s1, const wchar_t *s2, size_t n) + _GL_ATTRIBUTE_PURE); # endif _GL_CXXALIAS_SYS (wcsncmp, int, (const wchar_t *s1, const wchar_t *s2, size_t n)); @@ -718,7 +731,8 @@ _GL_WARN_ON_USE (wcsncmp, "wcsncmp is unportable - " /* Compare S1 and S2, ignoring case. */ #if @GNULIB_WCSCASECMP@ # if !@HAVE_WCSCASECMP@ -_GL_FUNCDECL_SYS (wcscasecmp, int, (const wchar_t *s1, const wchar_t *s2)); +_GL_FUNCDECL_SYS (wcscasecmp, int, (const wchar_t *s1, const wchar_t *s2) + _GL_ATTRIBUTE_PURE); # endif _GL_CXXALIAS_SYS (wcscasecmp, int, (const wchar_t *s1, const wchar_t *s2)); _GL_CXXALIASWARN (wcscasecmp); @@ -735,7 +749,8 @@ _GL_WARN_ON_USE (wcscasecmp, "wcscasecmp is unportable - " #if @GNULIB_WCSNCASECMP@ # if !@HAVE_WCSNCASECMP@ _GL_FUNCDECL_SYS (wcsncasecmp, int, - (const wchar_t *s1, const wchar_t *s2, size_t n)); + (const wchar_t *s1, const wchar_t *s2, size_t n) + _GL_ATTRIBUTE_PURE); # endif _GL_CXXALIAS_SYS (wcsncasecmp, int, (const wchar_t *s1, const wchar_t *s2, size_t n)); @@ -803,7 +818,8 @@ _GL_WARN_ON_USE (wcsdup, "wcsdup is unportable - " /* Find the first occurrence of WC in WCS. */ #if @GNULIB_WCSCHR@ # if !@HAVE_WCSCHR@ -_GL_FUNCDECL_SYS (wcschr, wchar_t *, (const wchar_t *wcs, wchar_t wc)); +_GL_FUNCDECL_SYS (wcschr, wchar_t *, (const wchar_t *wcs, wchar_t wc) + _GL_ATTRIBUTE_PURE); # endif /* On some systems, this function is defined as an overloaded function: extern "C++" { @@ -832,7 +848,8 @@ _GL_WARN_ON_USE (wcschr, "wcschr is unportable - " /* Find the last occurrence of WC in WCS. */ #if @GNULIB_WCSRCHR@ # if !@HAVE_WCSRCHR@ -_GL_FUNCDECL_SYS (wcsrchr, wchar_t *, (const wchar_t *wcs, wchar_t wc)); +_GL_FUNCDECL_SYS (wcsrchr, wchar_t *, (const wchar_t *wcs, wchar_t wc) + _GL_ATTRIBUTE_PURE); # endif /* On some systems, this function is defined as an overloaded function: extern "C++" { @@ -862,7 +879,8 @@ _GL_WARN_ON_USE (wcsrchr, "wcsrchr is unportable - " of wide characters not in REJECT. */ #if @GNULIB_WCSCSPN@ # if !@HAVE_WCSCSPN@ -_GL_FUNCDECL_SYS (wcscspn, size_t, (const wchar_t *wcs, const wchar_t *reject)); +_GL_FUNCDECL_SYS (wcscspn, size_t, (const wchar_t *wcs, const wchar_t *reject) + _GL_ATTRIBUTE_PURE); # endif _GL_CXXALIAS_SYS (wcscspn, size_t, (const wchar_t *wcs, const wchar_t *reject)); _GL_CXXALIASWARN (wcscspn); @@ -879,7 +897,8 @@ _GL_WARN_ON_USE (wcscspn, "wcscspn is unportable - " of wide characters in ACCEPT. */ #if @GNULIB_WCSSPN@ # if !@HAVE_WCSSPN@ -_GL_FUNCDECL_SYS (wcsspn, size_t, (const wchar_t *wcs, const wchar_t *accept)); +_GL_FUNCDECL_SYS (wcsspn, size_t, (const wchar_t *wcs, const wchar_t *accept) + _GL_ATTRIBUTE_PURE); # endif _GL_CXXALIAS_SYS (wcsspn, size_t, (const wchar_t *wcs, const wchar_t *accept)); _GL_CXXALIASWARN (wcsspn); @@ -896,7 +915,8 @@ _GL_WARN_ON_USE (wcsspn, "wcsspn is unportable - " #if @GNULIB_WCSPBRK@ # if !@HAVE_WCSPBRK@ _GL_FUNCDECL_SYS (wcspbrk, wchar_t *, - (const wchar_t *wcs, const wchar_t *accept)); + (const wchar_t *wcs, const wchar_t *accept) + _GL_ATTRIBUTE_PURE); # endif /* On some systems, this function is defined as an overloaded function: extern "C++" { @@ -928,7 +948,8 @@ _GL_WARN_ON_USE (wcspbrk, "wcspbrk is unportable - " #if @GNULIB_WCSSTR@ # if !@HAVE_WCSSTR@ _GL_FUNCDECL_SYS (wcsstr, wchar_t *, - (const wchar_t *haystack, const wchar_t *needle)); + (const wchar_t *haystack, const wchar_t *needle) + _GL_ATTRIBUTE_PURE); # endif /* On some systems, this function is defined as an overloaded function: extern "C++" { @@ -982,11 +1003,13 @@ _GL_WARN_ON_USE (wcstok, "wcstok is unportable - " # undef wcswidth # define wcswidth rpl_wcswidth # endif -_GL_FUNCDECL_RPL (wcswidth, int, (const wchar_t *s, size_t n)); +_GL_FUNCDECL_RPL (wcswidth, int, (const wchar_t *s, size_t n) + _GL_ATTRIBUTE_PURE); _GL_CXXALIAS_RPL (wcswidth, int, (const wchar_t *s, size_t n)); # else # if !@HAVE_WCSWIDTH@ -_GL_FUNCDECL_SYS (wcswidth, int, (const wchar_t *s, size_t n)); +_GL_FUNCDECL_SYS (wcswidth, int, (const wchar_t *s, size_t n) + _GL_ATTRIBUTE_PURE); # endif _GL_CXXALIAS_SYS (wcswidth, int, (const wchar_t *s, size_t n)); # endif |