C语言 - 按位倒序

/* 按位倒序 */

unsigned long BitReverse32( unsigned long aNum )

{

unsigned long Num = 0;

char i;

for( i = 0; i < 32; i++ )

{

Num |= (aNum&1)<<(31-i);

aNum >>= 1;

}

return Num;

};