diff options
Diffstat (limited to 'src/ctype/islower.c')
| -rw-r--r-- | src/ctype/islower.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/ctype/islower.c b/src/ctype/islower.c index 259d1149..0a928a33 100644 --- a/src/ctype/islower.c +++ b/src/ctype/islower.c @@ -10,7 +10,7 @@ int islower(int c) ASSERT_REPRESENTABLE(c, 0, UCHAR_MAX, unsigned char, EOF); - return map[c] & CT_LOWER; + return c == EOF ? 0 : map[c] & CT_LOWER; } /*** |