Is there an easy way to convert a decimal number to binary in C? For example, how could I go from:
decimal 3 to binary 0011?
Thanks for any advice.
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Is there an easy way to convert a decimal number to binary in C? For example, how could I go from:
decimal 3 to binary 0011?
Thanks for any advice.
0011 =
0 * 2^3 +
0 * 2^2 +
1 * 2^1 +
1 * 2^0 =
3
is bit even? if no, 1. if yes, 0
divide by 2 (or bit shift)
is bit even? if no, 1. if yes, 0
etc... for 7 more times
Code:void displayBits( unsigned value ) { unsigned c, displayMask = 1 << 31; printf( "%7u = ", value ); for ( c = 1; c <= 32; c++ ) { putchar( value & displayMask ? '1' : '0' ); value <<= 1; if ( c % 8 == 0 ) putchar( ' ' ); } putchar( '\n' ); }