#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <assert.h>

// Let's clean it up.
// Put indent (spaces) after the # but before the rest of the directive.

#ifdef I_AM_DEBUGGING
#   define  print_int_expression(n) \
        ( printf("%s == %d\n", (#n), (n)) )
#else
#   define  print_int_expression(n)
    // Every reference to print_int_expression(…) will disappear, leaving only the trailing semicolon.
#endif


int main(int argc, char* argv[]) {
    print_int_expression(3 + 5);  // prints:  3 + 5 == 8
    return EXIT_SUCCESS;
}
/* vim: set tabstop=4 shiftwidth=4 fileencoding=utf-8 noexpandtab: */