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| author | Jakob Kaivo <jkk@ung.org> | 2023-11-14 16:29:08 -0500 |
|---|---|---|
| committer | Jakob Kaivo <jkk@ung.org> | 2023-11-14 16:29:08 -0500 |
| commit | 88aa612a4e75833368f6c4552d95d1d5c1232555 (patch) | |
| tree | dbe4b13f5ec1f5d95bbe9b9ceaf3f72d1242ab31 | |
| parent | c6f20c0c0d08a8b97e0e04ba827e0441077d275d (diff) | |
return 0 if c is EOF
| -rw-r--r-- | src/ctype/isupper.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/ctype/isupper.c b/src/ctype/isupper.c index ccc7ff23..b188dc28 100644 --- a/src/ctype/isupper.c +++ b/src/ctype/isupper.c @@ -10,7 +10,7 @@ int isupper(int c) ASSERT_REPRESENTABLE(c, 0, UCHAR_MAX, unsigned char, EOF); - return map[c] & CT_UPPER; + return c == EOF ? 0 : map[c] & CT_UPPER; } /*** |