Xcode 4/Warning - Expression result unused

Question

This is my code

#if defined(GIAC_NO_OPTIMIZATIONS) || ((defined(VISUALC) ||    defined(__APPLE__)) && !defined(GIAC_VECTOR))
    if (0){ 1; }
#else

How to get rid of the warning?

Answer 1

You can get rid of the warning by making the code do something. The "result" of 1 is never used. Did you mean to assign the 1 to a variable? If not, then the warning is correct. The code doesn't do anything and usually that's an indication that something's wrong with it. What were you trying to accomplish with this code?

Answer 2

注释掉“ if”行（或“ 1”），它根本不做任何事情。