//二进制逆序 by MoreWindows( http://blog.csdn.net/MoreWindows ) #include <stdio.h> //二进制打印函数 template <class T> void PrintfBinary(T a) { int i; for (i = sizeof(a) * 8 - 1; i >= 0; --i) { if ((a >> i) & 1) putchar('1'); else putchar('0'); if (i == 8) putchar(' '); } putchar(' '); } int main() { printf("二进制逆序 "); printf("逆序前: "); unsigned short a = 0x1FFF; PrintfBinary(a); a = ((a & 0xAAAA) >> 1) | ((a & 0x5555) << 1); a = ((a & 0xCCCC) >> 2) | ((a & 0x3333) << 2); a = ((a & 0xF0F0) >> 4) | ((a & 0x0F0F) << 4); a = ((a & 0xFF00) >> 8) | ((a & 0x00FF) << 8); printf("逆序后: "); PrintfBinary(a); printf("false "); }
转自:http://blog.csdn.net/MoreWindows