【c++11关键字】 static_assert

/*
 * c++11关键字
 * static_assert
 * 编译期间判断
 * 小鱼号的代码日志
*/
#include <QCoreApplication>
#include <iostream>
using namespace  std;
int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
    static_assert(sizeof(int) == 4, 
                  "only work for int for 32 bit");
    static_assert(sizeof(long) == sizeof(long long), 
                  "only work for long == long long");
    return a.exec();
}