Provided by: libsdl3-doc_3.2.8+ds-1_all 

NAME
SDL_COMPILE_TIME_ASSERT - A compile-time assertion.
HEADER FILE
Defined in SDL3/SDL_stdinc.h
SYNOPSIS
#include "SDL3/SDL.h" #define SDL_COMPILE_TIME_ASSERT(name, x) FailToCompileIf_x_IsFalse(x)
DESCRIPTION
This can check constant values _known to the compiler at build time_ for correctness, and end the compile with the error if they fail. Often times these are used to verify basic truths, like the size of a datatype is what is expected: SDL_COMPILE_TIME_ASSERT(uint32_size, sizeof(Uint32) == 4); The name parameter must be a valid C symbol, and must be unique across all compile-time asserts in the same compilation unit (one run of the compiler), or the build might fail with cryptic errors on some targets. This is used with a C language trick that works on older compilers that don't support better assertion techniques. If you need an assertion that operates at runtime, on variable data, you should try SDL_assert instead.
THREAD SAFETY
This macro doesn't generate any code to run.
AVAILABILITY
This macro is available since SDL 3.2.0.
SEE ALSO
•(3), SDL_assert(3) Simple Directmedia Layer SDL 3.2.8 SDL_COMPILE_TIME_ASSERT(3)