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| author | Christian Göttsche <cgzones@googlemail.com> | 2020-09-11 19:27:56 +0200 |
|---|---|---|
| committer | cgzones <cgzones@googlemail.com> | 2020-09-17 22:03:24 +0200 |
| commit | 8a849bc85a1d59ffc77e6bff1aa3da2d4bcd746c (patch) | |
| tree | 6c9b11a31534d493ead2ce107fb927421a9696df /ColumnsPanel.c | |
| parent | 1f5bd5c4c84c53915bcdd68398e77269fe26328c (diff) | |
Call character checking function with unsigned char
See https://wiki.sei.cmu.edu/confluence/display/c/STR37-C.+Arguments+to+character-handling+functions+must+be+representable+as+an+unsigned+char
Diffstat (limited to 'ColumnsPanel.c')
| -rw-r--r-- | ColumnsPanel.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/ColumnsPanel.c b/ColumnsPanel.c index 587175c8..318c7af8 100644 --- a/ColumnsPanel.c +++ b/ColumnsPanel.c @@ -91,7 +91,7 @@ static HandlerResult ColumnsPanel_eventHandler(Panel* super, int ch) { } default: { - if (ch < 255 && isalpha(ch)) + if (0 < ch && ch < 255 && isalpha((unsigned char)ch)) result = Panel_selectByTyping(super, ch); if (result == BREAK_LOOP) result = IGNORED; |