[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/conio/cputws.cpp

@@ -0,0 +1,63 @@
+//
+// cputws.cpp
+//
+//      Copyright (c) Microsoft Corporation. All rights reserved.
+//
+// Defines _cputws(), which writes a wide string directly to the console.
+//
+#include <conio.h>
+#include <errno.h>
+#include <corecrt_internal_lowio.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+// Writes the given string directly to the console.  No newline is appended.
+//
+// Returns 0 on success; nonzero on failure.
+extern "C" int __cdecl _cputws(wchar_t const* string)
+{
+    _VALIDATE_CLEAR_OSSERR_RETURN((string != nullptr), EINVAL, -1);
+
+    if (__dcrt_lowio_ensure_console_output_initialized() == FALSE)
+        return -1;
+
+    // Write string to console file handle:
+    ptrdiff_t length = wcslen(string);
+
+    __acrt_lock(__acrt_conio_lock);
+
+    int result = 0;
+
+    __try
+    {
+        while (length > 0)
+        {
+            static size_t const max_write_bytes = 65535;
+            static size_t const max_write_wchars = max_write_bytes / sizeof(wchar_t);
+
+            DWORD const wchars_to_write = length > max_write_wchars
+                ? max_write_wchars
+                : static_cast<DWORD>(length);
+
+            DWORD wchars_written;
+            if (__dcrt_write_console(
+                string,
+                wchars_to_write,
+                &wchars_written) == FALSE)
+            {
+                result = -1;
+                __leave;
+            }
+
+            string += wchars_to_write;
+            length -= wchars_to_write;
+        }
+    }
+    __finally
+    {
+        __acrt_unlock(__acrt_conio_lock);
+    }
+
+    return result;
+}