检测机器的CPU的字节序(Big Endian OR Little Endian)

#include <iostream>// The CPU bytes orderenum TCPUArch {LITTLE_ENDIAN, BIG_ENDIAN, NONEIEEE};int main(int argc, char *argv[]){using namespace std;TCPUArch architecture;union { double f;unsigned int x[2];} testcpu;testcpu.f = 1.0;if( testcpu.x[1] == 0x3FF00000 ) architecture = LITTLE_ENDIAN;else if( testcpu.x[0] == 0x3FF00000 )architecture = BIG_ENDIAN;elsearchitecture = NONEIEEE;cout << architecture << endl;return 0;} 

 

Power PC的朋友试一下看看是否是BIG ENDIAN？