C ++ strtod无法正确读取参数类型

Question

我正在研究Bjarne Stroustrup的《编程-原理与实践》，这让我很费解（这只是11中的第2部分）。

import React, { Component } from 'react';
import { Navbar, NavbarBrand } from 'reactstrap';
import logo from './logo.svg';
import './App.css';

class App extends Component {
  render() {
    return (
      <div className="App">
        <Navbar dark color="primary">
          <div className="container">
            <NavbarBrand href="/">my-brand</NavbarBrand>
          </div>
        </Navbar>
      </div>
    );
  }
}

export default App;

Visual Studio 2017在这里给我一个错误：

#include "../../std_lib_facilities.h"
#include <stdlib.h>

//Write a program that consists of a while loop (each time around the loop) reads in two ints and then prints them. Exit the program when a terminating | is entered.

int main()
{
    char temp;
    char* endptr = 0;
    while (temp != '|')
    {
        double value;
        vector<int> values;
        for (string temp; values.size() < 2;)
        {
            cin >> temp;
            {
                if (temp == "|")
                    break;
                else
                    value = strtod(temp, &endptr); 
                    values.push_back(value);
            }
        }
        cout << values[0] << "\n" << values[1] << "\n" << "\n";
        values.clear();
    }
}

带有参数else value = strtod(temp, &endptr); 的

建议“不存在从“ std :: string”到“ const char *”的合适的转换函数”，这正是我期望strtod要做的函数。

Answer 1

在使用C ++时，请改用std::stod()（C ++ 11）

https://en.cppreference.com/w/cpp/string/basic_string/stof