c define multiline macro?

Question

#define DEBUG_BREAK(a)\\
    if ((a)) \\
{\\
    __asm int 3;\\
}

I have defined a macro as above, and try to use it

#include \"test_d         


        

Answer 1

Check there is no white space after each backslash. I often fall for this.

You might even need a single space before the backslash.