DOKK / manpages / debian 13 / libsdl3-doc / SDL_InvalidParamError.3.en
SDL_InvalidParamError(3) SDL3 FUNCTIONS SDL_InvalidParamError(3)

SDL_InvalidParamError - A macro to standardize error reporting on unsupported operations.

Defined in SDL3/SDL_error.h

#include "SDL3/SDL.h"
#define SDL_InvalidParamError(param)    SDL_SetError(Parameter'%s'isinvalid",(param))

This simply calls SDL_SetError () with a standardized error string, for convenience, consistency, and clarity.

A common usage pattern inside SDL is this:

bool MyFunction(const char *str) {

if (!str) {
return SDL_InvalidParamError("str"); // returns false.
}
DoSomething(str);
return true; }

It is safe to call this macro from any thread.

This macro is available since SDL 3.2.0.

SDL 3.2.10 Simple Directmedia Layer