| Time | 剑指offer |
|---|---|
| 7.19 | 1 - 6 |
- Debug
I found they using Macro for Debugging very interesting, they actually using something like:
Meaning that if Debug Mode is on, then somethings would be output, but if Debug Mode is off, then debug will be replaced by 0 && cout, when 0 && would end any expression, which meaning nothing would be output, and that's actually Debug Mode off.
#ifdef ... //Debug Mode #define debug cout #else #define debug 0 && cout #endif int main(){ // Stuff debug <<"Stuff..." <<endl;