locale.c: Windows special case NULL input first

This gets the trivial case out of the way, and can use plain setlocale,
as the locale string is non-existent, so doesn't need to handle
different character sets.

1 files changed, 5 insertions, 1 deletions

diff --git a/locale.c b/locale.c
index ac6c11bd88..3c6d42eaac 100644
--- a/locale.c
+++ b/locale.c
@@ -2593,7 +2593,11 @@ S_win32_setlocale(pTHX_ int category, const char* locale)
      * variable. */
 
 
-    if (locale && strEQ(locale, "")) {
+    if (locale == NULL) {
+        return wrap_wsetlocale(category, NULL);
+    }
+
+    if (strEQ(locale, "")) {
         /* Note this function may change the locale, but that's ok because we
          * are about to change it anyway */
         locale = find_locale_from_environment(get_category_index(category, ""));