[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/misc/set_error_mode.cpp

@@ -0,0 +1,78 @@
+/***
+*errmode.c - modify __error_mode and __acrt_app_type
+*
+*       Copyright (c) Microsoft Corporation. All rights reserved.
+*
+*Purpose:
+*       Defines _set_error_mode() and _set_app_type(), the routines used
+*       to modify __error_mode and __acrt_app_type variables. Together, these
+*       two variables determine how/where the C runtime writes error
+*       messages.
+*
+*******************************************************************************/
+
+#include <corecrt_internal.h>
+#include <stdlib.h>
+
+extern "C" {
+
+
+
+/*
+ * __error_mode, together with __acrt_app_type, determine how error messages
+ * are written out.
+ */
+static int __acrt_error_mode = _OUT_TO_DEFAULT;
+
+/***
+*int _set_error_mode(int modeval) - interface to change __error_mode
+*
+*Purpose:
+*       Control the error (output) sink by setting the value of __error_mode.
+*       Explicit controls are to direct output t o standard error (FILE * or
+*       C handle or NT HANDLE) or to use the MessageBox API. This routine is
+*       exposed and documented for the users.
+*
+*Entry:
+*       int modeval =   _OUT_TO_DEFAULT, error sink is determined by __acrt_app_type
+*                       _OUT_TO_STDERR,  error sink is standard error
+*                       _OUT_TO_MSGBOX,  error sink is a message box
+*                       _REPORT_ERRMODE, report the current __error_mode value
+*
+*Exit:
+*       Returns old setting or -1 if an error occurs.
+*
+*Exceptions:
+*
+*******************************************************************************/
+
+int __cdecl _set_error_mode(int const new_error_mode)
+{
+    switch (new_error_mode)
+    {
+    case _OUT_TO_DEFAULT:
+    case _OUT_TO_STDERR:
+    case _OUT_TO_MSGBOX:
+    {
+        int const old_error_mode = __acrt_error_mode;
+        __acrt_error_mode = new_error_mode;
+        return old_error_mode;
+    }
+
+    case _REPORT_ERRMODE:
+    {
+        return __acrt_error_mode;
+    }
+
+    default:
+    {
+        _VALIDATE_RETURN(("Invalid error_mode", 0), EINVAL, -1);
+    }
+    }
+
+    return 0;
+}
+
+
+
+} // extern "C"