Question

I’m trying to create a simple test macro but I’m having errors in the following lines. ANy of you knows why or how I can I fix them?

#define test(condition) do{\
    if (condition)
    {\        //// <-----Expected identifier or (
        NSlog @"passed: " %@ #condtion); \

    }
    else
    {\
        NSLog(@"failed: " @ #condition); \

    }
}   //// <-----extraneous closing brace ( "}")

Answer 1

You need a backslash at the end of every line of your multi-line macro (except the last).

#define test(condition) do{\
    if (condition) \
    {\
        NSlog @"passed: " %@ #condtion); \
    } \
    else \
    { \
        NSLog(@"failed: " @ #condition); \
    } \
}