【Boost】系列05：数值与字符串转换

#include <boost/lexical_cast.hpp>
#include <iostream>
using namespace boost;
using namespace std;

int main()
{
    int x = lexical_cast<int>("100");
    long y = lexical_cast<long>("2000"); 
    float pi = lexical_cast<float>("3.14159e5");
    double e = lexical_cast<double>("2.71828");

    cout<<"x="<<x<<"  y="<<y<<"  pi="<<pi<<"  e="<<e<<endl;

    string str = lexical_cast<string>(456);
    cout<<str<<endl;
    cout<<lexical_cast<string>(0.618)<<endl;
    cout<<lexical_cast<string>(0x10)<<endl;

    return 0;

}

输出：

x=100  y=2000  pi=314159  e=2.71828

456

0.61799999999999999

16