Convert a wide character to uppercase
#include <wctype.h> wint_t towupper( wint_t wc );
libc
Use the -l c option to qcc to link against this library. This library is usually included automatically.
The towupper() function converts wc to an uppercase letter if wc represents a lowercase letter.
The corresponding uppercase letter when the argument is a lowercase letter; otherwise, the original wide character is returned. If the argument doesn't correspond to a valid character in the current locale and isn't WEOF, the function's behavior is undefined.
Safety: | |
---|---|
Cancellation point | No |
Interrupt handler | Yes |
Signal handler | Yes |
Thread | Yes |