RAC宏分析 1 NSCParameterAssert

#import <Foundation/Foundation.h>

#define ZZCParameterAssert(condition) NSCAssert((condition), @"Invalid parameter not satisfying: %@", @#condition)

int main(int argc, const char * argv[]) {
    @autoreleasepool {
        int len = -1;
        ZZCParameterAssert(len > 0);  // Invalid parameter not satisfying: len > 0
    }
    return 0;
}