###### (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_assert_release An assertion test that is performed even in release builds. ## Header File Defined in [](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_assert.h) ## Syntax ```c #define SDL_assert_release(condition) SDL_disabled_assert(condition) ``` ## Macro Parameters | | | | ----------------- | --------------------- | | **condition** | boolean value to test | ## Remarks This macro is enabled when the [SDL_ASSERT_LEVEL](SDL_ASSERT_LEVEL) is >= 1, otherwise it is disabled. This is meant to be for tests that are cheap to make and extremely unlikely to fail; generally it is frowned upon to have an assertion failure in a release build, so these assertions generally need to be of more than life-and-death importance if there's a chance they might trigger. You should almost always consider handling these cases more gracefully than an assert allows. When assertions are disabled, this wraps `condition` in a `sizeof` operator, which means any function calls and side effects will not run, but the compiler will not complain about any otherwise-unused variables that are only referenced in the assertion. One can set the environment variable "[SDL_ASSERT](SDL_ASSERT)" to one of several strings ("abort", "break", "retry", "ignore", "always_ignore") to force a default behavior, which may be desirable for automation purposes. If your platform requires GUI interfaces to happen on the main thread but you're debugging an assertion in a background thread, it might be desirable to set this to "break" so that your debugger takes control as soon as assert is triggered, instead of risking a bad UI interaction (deadlock, etc) in the application. Note that [SDL_ASSERT](SDL_ASSERT) is an _environment variable_ and not an SDL hint! Please refer to your platform's documentation for how to set it! ## Version This macro is available since SDL 3.0.0. ---- [CategoryAPI](CategoryAPI), [CategoryAPIMacro](CategoryAPIMacro)