NAME
SDL_toupper - Convert low-ASCII English letters to uppercase.
HEADER FILE
Defined in SDL3/SDL_stdinc.h
SYNOPSIS
#include "SDL3/SDL.h"
int SDL_toupper(int x);
DESCRIPTION
WARNING : Regardless of system locale, this will only convert ASCII values 'a' through 'z' to uppercase.
This function returns the uppercase equivalent of x . If a character cannot be converted, or is already uppercase, this function returns x .
FUNCTION PARAMETERS
- x
-
character value to check.
RETURN VALUE
Returns capitalized version of x, or x if no conversion available.
THREAD SAFETY
It is safe to call this function from any thread.
AVAILABILITY
This function is available since SDL 3.2.0.