simple comparison test fails - why?

[h4ever]

I have set first argument -hsv

Image:
http://oi60.tinypic.com/2412u5x.jpg

int main(int argc, char **argv)
{
if ( argv[1] == "-hsv" )
        {
        data.source_color_space=RGB_;
        data.target_color_space=HSV_;
        }
}

But the condition is not true. Why?

Edit:
Solved, you can delete it.

if ( strcmp(argv[1],"-hsv")==0 )
   {
    data.source_color_space=RGB_;
    data.target_color_space=HSV_;
    }