###### (This is the documentation for SDL3, which is under heavy development and the API is changing! [SDL2](https://wiki.libsdl.org/SDL2/) is the current stable version!) # SDL_strcmp Compare two null-terminated UTF-8 strings. ## Header File Defined in [](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_stdinc.h) ## Syntax ```c int SDL_strcmp(const char *str1, const char *str2); ``` ## Function Parameters | | | | ------------ | ---------------------------------------------------- | | **str1** | The first string to compare. NULL is not permitted! | | **str2** | The second string to compare. NULL is not permitted! | ## Return Value Returns less than zero if str1 is "less than" str2, greater than zero if str1 is "greater than" str2, and zero if the strings match exactly. ## Remarks Due to the nature of UTF-8 encoding, this will work with Unicode strings, since effectively this function just compares bytes until it hits a null-terminating character. Also due to the nature of UTF-8, this can be used with [SDL_qsort](SDL_qsort)() to put strings in (roughly) alphabetical order. ## Thread Safety It is safe to call this function from any thread. ## Version This function is available since SDL 3.0.0. ---- [CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction)