Macro that tries to check assertions at runtime and compile-time

always_assert.c

// (c) M1lkweed, 2022-2023
// GPLv3+

#include <assert.h>

#define ALWAYS_ASSERT(cond, ...) ({static_assert(__builtin_constant_p((cond))?(cond):1,##__VA_ARGS__);assert((cond),##__VA_ARGS__);})

int main(int argc, char**){
	  ALWAYS_ASSERT(argc > 2);
}