@node string.h
@section @file{string.h}

POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9799919799/basedefs/string.h.html}

Gnulib module: string-h
@mindex string-h

Portability problems fixed by Gnulib:
@itemize
@item
Some platforms provide a @code{NULL} macro that cannot be used in arbitrary
expressions:
NetBSD 5.0
@end itemize

Portability problems not fixed by Gnulib:
@itemize
@item
POSIX.1-2024 allows, but does not require, this file to make visible
all symbols from the header @code{<stddef.h>}.
Programs should not assume that these other symbols are visible merely
because this file is included, or that they are invisible because only
this file is included.
@end itemize
