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Diffstat (limited to 'src/multibyte/mbtowc.c')
-rw-r--r--src/multibyte/mbtowc.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/multibyte/mbtowc.c b/src/multibyte/mbtowc.c
index 803d2213..71a95066 100644
--- a/src/multibyte/mbtowc.c
+++ b/src/multibyte/mbtowc.c
@@ -4,6 +4,7 @@
* unnecessary.
*/
+#include <stdlib.h>
#include <wchar.h>
#include <errno.h>
#include "internal.h"
@@ -19,6 +20,7 @@ int mbtowc(wchar_t *restrict wc, const char *restrict src, size_t n)
if (!wc) wc = &dummy;
if (*s < 0x80) return !!(*wc = *s);
+ if (MB_CUR_MAX==1) return (*wc = CODEUNIT(*s)), 1;
if (*s-SA > SB-SA) goto ilseq;
c = bittab[*s++-SA];