Rationale: when starting up a curl-using app, all cookies from the jar are
checked against each other. This was causing a two-second startup delay in
the Fifth browser.

All tests pass.

Signed-off-by: Lauri Kasanen <cand_at_gmx.com>

---
v2: Guards as suggested by Tim. The speedup still correctly happens, tested
gcc 4.2.0 and 5.2.0, both at -O3 -march=native.
 lib/rawstr.c | 6 ++++++
 1 file changed, 6 insertions(+)
diff --git a/lib/rawstr.c b/lib/rawstr.c
index e27dac4..752195c 100644
--- a/lib/rawstr.c
+++ b/lib/rawstr.c
@@ -28,6 +28,10 @@
    its behavior is altered by the current locale. */
 char Curl_raw_toupper(char in)
 {
+#if ('z' - 'a' == 25) && ('Z' - 'A' == 25)
+  if (in >= 'a' && in <= 'z')
+    return 'A' + in - 'a';
+#else
   switch (in) {
   case 'a':
     return 'A';
@@ -82,6 +86,8 @@ char Curl_raw_toupper(char in)
   case 'z':
     return 'Z';
   }
+#endif
+
   return in;
 }
 
-- 
2.6.2
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