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Call character checking function with unsigned char

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See https://wiki.sei.cmu.edu/confluence/display/c/STR37-C.+Arguments+to+character-handling+functions+must+be+representable+as+an+unsigned+char
This commit is contained in:
Christian Göttsche
2020-09-11 19:27:56 +02:00
committed by cgzones
parent 1f5bd5c4c8
commit 8a849bc85a
6 changed files with 6 additions and 6 deletions
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2
Panel.c
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@ -411,7 +411,7 @@ HandlerResult Panel_selectByTyping(Panel* this, int ch) {
this->eventHandlerState = xCalloc(100, sizeof(char));
char* buffer = this->eventHandlerState;
if (ch > 0 && ch < 255 && isalnum(ch)) {
if (0 < ch && ch < 255 && isalnum((unsigned char)ch)) {
int len = strlen(buffer);
if (len < 99) {
buffer[len] = ch;