linux g++编译 错误: 'cEndian'不是一个类型名

Question

代码如下：

#include

using namespace std;

char cEndian;

#if BYTE_ORDER==__ORDER_LITTLE_ENDIAN__
cEndian = 'l';
#else
cEndian = 'b';
#endif

static union JudgeEndian
{
char c[4];
unsigned long mylong;
}Endian_test = {{'l','?','?','b'}};

cEndian = ((char)Endian_test.mylong);

int main
()
{
cout<<cEndian<<endl;
return 0;
}

求解

Answer 1

你把代码顺序调一下就好了

 #include <iostream>
using namespace std;

static union JudgeEndian
{
    char c[4];
    unsigned long mylong;
}Endian_test = {{'l','?','?','b'}};

int main()
{
    char cEndian;
#if 1
    cEndian = 'l';
#else
    cEndian = 'b';
#endif

    cEndian = ((char)Endian_test.mylong);

    cout<<cEndian<<endl;
    return 0;
}