[PATCH 1/1] msvcrt: Optimize _ismbcspace_l for ASCII range.

[Piotr Caban]

From: Piotr Caban

---
 dlls/msvcrt/mbcs.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/dlls/msvcrt/mbcs.c b/dlls/msvcrt/mbcs.c
index bd4245c2c53..0aa9991be59 100644
--- a/dlls/msvcrt/mbcs.c
+++ b/dlls/msvcrt/mbcs.c
@@ -1957,6 +1957,18 @@ int CDECL _ismbcalnum(unsigned int ch)
  */
 int CDECL _ismbcspace_l(unsigned int ch, _locale_t locale)
 {
+    if (ch <= 0x7f)
+    {
+        pthreadlocinfo locinfo;
+
+        if(!locale)
+            locinfo = get_locinfo();
+        else
+            locinfo = locale->locinfo;
+
+        return locinfo->pctype[ch] & _SPACE;
+    }
+
     return _iswspace_l( msvcrt_mbc_to_wc_l(ch, locale), locale );
 }