Test now passes on VC 14, 15 and 16 with current MSVC runtimes.
--TEST--
php://fd wrapper: invalid file descriptor
---SKIPIF--
-<?php include('skipif.inc');
-if(substr(PHP_OS, 0, 3) == "WIN")
- die("skip Not for Windows");
-
-//we'd need a release and a test variation for windows, because in debug builds we get this message:
-//Warning: Invalid parameter detected in CRT function '_dup' (f:\dd\vctools\crt_bld\self_x86\crt\src\dup.c:52)
-//I greped the CRT sources and found no function capable of validating a file descriptor
--FILE--
<?php
fopen("php://fd/12", "w");