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-rw-r--r--Src/ztype.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/Src/ztype.h b/Src/ztype.h
index 5c85b0cd7..4675f73a9 100644
--- a/Src/ztype.h
+++ b/Src/ztype.h
@@ -43,7 +43,8 @@
 #define IWSEP    (1 << 13)
 #define INULL    (1 << 14)
 #define IPATTERN (1 << 15)
-#define zistype(X,Y) (typtab[STOUC(X)] & Y)
+#define INAMESPC (1 << 16)
+#define zistype(X,Y) (typtab[(unsigned char) (X)] & Y)
 #define idigit(X) zistype(X,IDIGIT)
 #define ialnum(X) zistype(X,IALNUM)
 #define iblank(X) zistype(X,IBLANK)	/* blank, not including \n */