boost中result_of简单使用

#include <boost/utility/result_of.hpp>int main(){typedef double (*Func)(double d);// 函数指针定义Func func = sqrt;// 函数指针赋值boost::result_of<Func(double)>::type x = func(5.0);// 类型推导std::cout<< "x: " << x << std::endl;std::cout<< "name: " << typeid(x).name() << std::endl;// 打印出x的类型名称}