Function avr_libc::strupr

pub unsafe extern "C" fn strupr(arg1: *mut i8) -> *mut i8

\ingroup avr_string \fn char *strupr(char *s) \brief Convert a string to upper case.

The strupr() function will convert a string to upper case. Only the lower case alphabetic characters [a .. z] are converted. Non-alphabetic characters will not be changed.

\returns The strupr() function returns a pointer to the converted string. The pointer is the same as that passed in since the operation is perform in place.