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- countblessings
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Odd Numbers
Why would this code print out odd numbers between 1 to 11? for ( unsigned int i = 1; i <= 100; i++ ) { if( i& 0x00000001 ) { cout << i<< endl; }; }
Odd Numbers
Does all odd numbers up to 100 actually.0x00000001 -> binary 1& -> bitwise AND operatori & 0x00000001 converts the binary representation of i to zero excluding the last bit.E.g.1 0000000000000001 0000000000000001 true2 0000000000000010 0000000000000000 false3 0000000000000011 0000000000000001 true4 0000000000000100 0000000000000000 false
Last edited by Hansi on August 16th, 2012, 10:00 pm, edited 1 time in total.
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- Traden4Alpha
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Odd Numbers
i & 0x00000001 returns 0x00000000 if i is even and returns 0x00000001 if i is odd. That i & 0x00000001 basically pulls off the LSB of i.