bitwise most significant set bit

Question

I want to find the most significant bit that is set to 1. I have tried every possible way from & to ORing all of the bits from 1 t

Answer 1

if( value | 0x40 ) return 7;
else if( value | 0x20 ) return 6;
else if( value | 0x10 ) return 5;
else if( value | 0x8 ) return 4;
else if( value | 0x4 ) return 3;
else if( value | 0x2 ) return 2;
else if( value | 0x1 ) return 1;