It makes sense if you are using C. If you are using something like C#, compiler will throw an error (not warning) if you write if(str = "hello") See: http://s

It makes sense if you are using C. If you are using something like C#, compiler will throw an error (not warning) if you write if(str = "hello") See: http://stackoverflow.com/questions/655657/0-variable-or-null-obj-an-outdated-practice-in-c http://stackoverflow.com/questions/655657/0-variable-or-null...