wcsstr
======

POSIX specification:
 https://pubs.opengroup.org/onlinepubs/9699919799/functions/wcsstr.html

Gnulib module: wcsstr or wcsstr-simple

Portability problems fixed by either Gnulib module wcsstr-simple or wcsstr:

  * This function is missing on some platforms: HP-UX 11.00.

Portability problems fixed by Gnulib module wcsstr:

  * This function has quadratic instead of linear worst-case complexity on some platforms: glibc 2.37, macOS 12.5, FreeBSD 13.1, NetBSD 9.0, OpenBSD 7.2, AIX 7.2, HP-UX 11, IRIX 6.5, Solaris 11.4, Cygwin 2.9.0, mingw, MSVC 14.

Portability problems not fixed by Gnulib:

  * On Windows and 32-bit AIX platforms, wchar_t is a 16-bit type and therefore cannot accommodate all Unicode characters.