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-rw-r--r--include/_ctype.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/_ctype.h b/include/_ctype.h
index 2bef5870d905..8a43409e0aa0 100644
--- a/include/_ctype.h
+++ b/include/_ctype.h
@@ -59,6 +59,7 @@
#define _CTYPE_I 0x00080000L /* Ideogram */
#define _CTYPE_T 0x00100000L /* Special */
#define _CTYPE_Q 0x00200000L /* Phonogram */
+#define _CTYPE_N 0x00400000L /* Number (superset of digit) */
#define _CTYPE_SW0 0x20000000L /* 0 width character */
#define _CTYPE_SW1 0x40000000L /* 1 width character */
#define _CTYPE_SW2 0x80000000L /* 2 width character */