X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fctype%2Fiswalpha.c;h=d558faef47954bdc2ba7f84957e73fe969c31233;hb=f206fec1c8162ea93ece055f09a571acde69974a;hp=0f031eac55681c092ae65b389cc79570a8711469;hpb=0b44a0315b47dd8eced9f3b7f31580cf14bbfc01;p=musl

diff --git a/src/ctype/iswalpha.c b/src/ctype/iswalpha.c
index 0f031eac..d558faef 100644
--- a/src/ctype/iswalpha.c
+++ b/src/ctype/iswalpha.c
@@ -1,6 +1,14 @@
 #include <wctype.h>
 
+static const unsigned char table[] = {
+#include "alpha.h"
+};
+
 int iswalpha(wint_t wc)
 {
-	return (32U|wc)-'a'<26;
+	if (wc<0x20000U)
+		return (table[table[wc>>8]*32+((wc&255)>>3)]>>(wc&7))&1;
+	if (wc<0x2fffeU)
+		return 1;
+	return 0;
 }