@node strdup
@section @code{strdup}
@findex strdup

POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/functions/strdup.html}

Gnulib module: strdup or strdup-posix

Portability problems fixed by either Gnulib module @code{strdup} or @code{strdup-posix}:
@itemize
@item
This function has no prototype in @code{<string.h>} on some old platforms.
@end itemize

Portability problems fixed by Gnulib module @code{strdup-posix}:
@itemize
@item
Upon failure, the function does not set @code{errno} to @code{ENOMEM} on
some platforms:
mingw, MSVC 14.
@end itemize

Portability problems not fixed by Gnulib:
@itemize
@end itemize