SDL_InvalidParamError - Man Page

#include <SDL3/SDL_error.h>

#define SDL_InvalidParamError(param)    SDL_SetError("Parameter '%s' is invalid", (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.