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Diffstat (limited to 'gnulib/doc/posix-functions/gettimeofday.texi')
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| -rw-r--r-- | gnulib/doc/posix-functions/gettimeofday.texi | 37 |
2 files changed, 37 insertions, 0 deletions
diff --git a/gnulib b/gnulib deleted file mode 160000 -Subproject 4fc10daa05477586fea99b6b3ca02a87d1102fa diff --git a/gnulib/doc/posix-functions/gettimeofday.texi b/gnulib/doc/posix-functions/gettimeofday.texi new file mode 100644 index 00000000..fda59a3e --- /dev/null +++ b/gnulib/doc/posix-functions/gettimeofday.texi @@ -0,0 +1,37 @@ +@node gettimeofday +@section @code{gettimeofday} +@findex gettimeofday + +POSIX specification: @url{http://www.opengroup.org/onlinepubs/9699919799/functions/gettimeofday.html} + +Gnulib module: gettimeofday + +Portability problems fixed by Gnulib: +@itemize +@item +This function is missing on some platforms: +mingw. +@item +This function is declared with a nonstandard function prototype (only one +argument, or ``...'' after the first argument) on some platforms. +@item +On some platforms, the second argument has type @code{struct +timezone*} rather than @code{void *}, making it an error to redeclare +the function with the POSIX signature: +glibc. +However, rather than penalize these systems with a replacement +function, gnulib defines @code{GETTIMEOFDAY_TIMEZONE} to the +appropriate type for use in avoiding a compiler warning if assigning +@code{gettimeofday} to a function pointer. +@item +On some platforms, @code{gettimeofday} clobbers the buffer in which +@code{localtime} returns its result: +MacOS X 10.0. +@end itemize + +Portability problems not fixed by Gnulib: +@itemize +@item +Behavior is non-portable if the second argument to @code{gettimeofday} +is not @code{NULL}. +@end itemize |