我重载operator<<这样的: std::ostream& operator<<(std::ostream& os, SomeClass C){
//SomeClass is the class to be represented with operator overloading
os << "{ ";
os << C.getPropertyA() << " ";
os << C.g
我想了解更多关于流状态的信息,并且阅读heregood()如果流最近的I/O操作成功完成,则返回true。我曾尝试以下,如果我理解正确的话,违背了上述说法 #include <iostream>
#include <sstream>
int main() {
std::stringstream ss;
int x;
ss << "42";
ss