else {
if ( current.Len() == 1 ) {
// it's a letter
- keyCode = wxToupper(current[0]);
+ keyCode = wxToupper(current[0U]);
}
else {
// it should be a function key
- if ( current[0] == 'f' && isdigit(current[1]) &&
+ if ( current[0U] == 'f' && isdigit(current[1U]) &&
(current.Len() == 2 ||
- (current.Len() == 3 && isdigit(current[2]))) ) {
+ (current.Len() == 3 && isdigit(current[2U]))) ) {
int n;
sscanf(current.c_str() + 1, "%d", &n);