###### (This is the documentation for SDL3, which is the current stable version. [SDL2](https://wiki.libsdl.org/SDL2/) was the previous version!) # SDL_uitoa Convert an unsigned integer into a string. ## Header File Defined in [](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_stdinc.h) ## Syntax ```c char * SDL_uitoa(unsigned int value, char *str, int radix); ``` ## Function Parameters | | | | | ------------ | --------- | --------------------------------------- | | unsigned int | **value** | the unsigned integer to convert. | | char * | **str** | the buffer to write the string into. | | int | **radix** | the radix to use for string generation. | ## Return Value (char *) Returns `str`. ## Remarks This requires a radix to specified for string format. Specifying 10 produces a decimal number, 16 hexidecimal, etc. Must be in the range of 2 to 36. Note that this function will overflow a buffer if `str` is not large enough to hold the output! It may be safer to use [SDL_snprintf](SDL_snprintf) to clamp output, or [SDL_asprintf](SDL_asprintf) to allocate a buffer. Otherwise, it doesn't hurt to allocate much more space than you expect to use (and don't forget null terminator bytes, etc). ## Thread Safety It is safe to call this function from any thread. ## Version This function is available since SDL 3.1.3. ## See Also - [SDL_itoa](SDL_itoa) - [SDL_ultoa](SDL_ultoa) - [SDL_ulltoa](SDL_ulltoa) ---- [CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategoryStdinc](CategoryStdinc)