[UCRT] Import Microsoft.Windows.SDK.CRTSource version 10.0.22621.3

Imported from https://www.nuget.org/packages/Microsoft.Windows.SDK.CRTSource/10.0.22621.3
License: MIT

sdk/lib/ucrt/stdio/fgetpos.cpp

@@ -0,0 +1,26 @@
+//
+// fgetpos.cpp
+//
+//      Copyright (c) Microsoft Corporation.  All rights reserved.
+//
+// Defines fgetpos(), which gets the file position in an opaque internal format.
+//
+#include <corecrt_internal_stdio.h>
+
+
+
+// Gets the file position in the internal fpos_t format.  The returned value
+// should only be used in a call to fsetpos().  Our implementation happens to
+// just wrap _ftelli64() and _fseeki64().  Return zero on success; returns -1
+// and sets errno on failure.
+extern "C" int __cdecl fgetpos(FILE* const stream, fpos_t* const position)
+{
+    _VALIDATE_RETURN(stream   != nullptr, EINVAL, -1);
+    _VALIDATE_RETURN(position != nullptr, EINVAL, -1);
+
+    *position = _ftelli64(stream);
+    if (*position == -1)
+        return -1;
+
+    return 0;
+}