(C) assert at compile-time

define STATIC_ASSERT(x) { const char temp[ (((x) == 0) ? 0 : 1) ] = {'\0'}; }


int main()
{
  STATIC_ASSERT( 1 + 1 == 2 );
  //The line below will give the following compile-time error:
  //  [C++ Error] : Array must have at least one element
  //STATIC_ASSERT( 1 + 2 == 2 );
}

'Compile time assert' links

• C++