(This is the documentation for SDL3, which is the current stable version. SDL2 was the previous version!)

SDL_ultoa

Convert an unsigned long integer into a string.

Header File

Syntax

char * SDL_ultoa(unsigned long value, char *str, int radix);

Function Parameters

unsigned long	value	the unsigned long 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 to clamp output, or 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.