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Diffstat (limited to 'manual/lang.texi')
| -rw-r--r-- | manual/lang.texi | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/manual/lang.texi b/manual/lang.texi index 75af677dc9..d8c4bd7f69 100644 --- a/manual/lang.texi +++ b/manual/lang.texi @@ -471,18 +471,21 @@ of the same type. @deftypefn {Macro} void va_copy (va_list @var{dest}, va_list @var{src}) @deftypefnx {Macro} void __va_copy (va_list @var{dest}, va_list @var{src}) -@standardsx{va_copy, ISO, stdarg.h} +@standardsx{va_copy, C99, stdarg.h} +@standardsx{__va_copy, GNU, stdarg.h} @safety{@prelim{}@mtsafe{}@assafe{}@acsafe{}} -@c This is no longer provided by glibc, but rather by the compiler. The @code{va_copy} macro allows copying of objects of type @code{va_list} even if this is not an integral type. The argument pointer in @var{dest} is initialized to point to the same argument as the pointer in @var{src}. -This macro was added in ISO C99. When building for strict conformance -to ISO C90 (@samp{gcc -ansi}), it is not available. The macro -@code{__va_copy} is available as a GNU extension in any standards -mode; before GCC 3.0, it was the only macro for this functionality. +@code{va_copy} was added in ISO C99. When building for strict +conformance to ISO C90 (@samp{gcc -std=c90}), it is not available. +GCC provides @code{__va_copy}, as an extension, in any standards mode; +before GCC 3.0, it was the only macro for this functionality. + +These macros are no longer provided by @theglibc{}, but rather by the +compiler. @end deftypefn If you want to use @code{va_copy} and be portable to pre-C99 systems, |