mirror of
https://https.git.savannah.gnu.org/git/gnulib.git
synced 2026-09-05 05:01:45 +00:00
Bruno Haible
8fb59b8fac
* doc/posix-headers/*.texi: Add info about MSVC 14. * doc/posix-functions/*.texi: Likewise. * doc/pastposix-functions/*.texi: Likewise. * doc/glibc-headers/*.texi: Likewise. * doc/glibc-functions/*.texi: Likewise.
38 lines
1.1 KiB
Plaintext
38 lines
1.1 KiB
Plaintext
@node unsetenv
|
|
@section @code{unsetenv}
|
|
@findex unsetenv
|
|
|
|
POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/unsetenv.html}
|
|
|
|
Gnulib module: unsetenv
|
|
|
|
Portability problems fixed by Gnulib:
|
|
@itemize
|
|
@item
|
|
This function is missing on some platforms:
|
|
AIX 5.1, HP-UX 11.23, IRIX 6.5, Solaris 9, mingw, MSVC 14, BeOS.
|
|
@item
|
|
This function is not declared on some platforms:
|
|
OSF/1 5.1.
|
|
@item
|
|
This function has the return type @samp{void} instead of @samp{int} on some
|
|
platforms:
|
|
Mac OS X 10.3, FreeBSD 6.0, NetBSD 1.6, OpenBSD 3.8, OSF/1 5.1.
|
|
@item
|
|
On some platforms, this function does not fail with @samp{EINVAL} when
|
|
passed an empty string or a string containing @samp{=}:
|
|
FreeBSD 6.0, NetBSD 1.6, OpenBSD 4.7.
|
|
@item
|
|
This function removes only the first value association for the given
|
|
environment variable, not all of them, on some platforms:
|
|
Solaris 11 2011-11, Haiku.
|
|
@end itemize
|
|
|
|
Portability problems not fixed by Gnulib:
|
|
@itemize
|
|
@item
|
|
Older versions of POSIX required that @code{unsetenv(NULL)} gracefully
|
|
fail with @code{EINVAL}, but not all implementations guarantee this,
|
|
and the requirement was removed.
|
|
@end itemize
|