Question

运行Ubuntu 12.04，使用g ++编译器并安装必要的构建版本。目前试图获得一个小程序来运行代码如下：

#include "Muon.h"
#include "Electron.h"
#include "Photon.h"


#include <string>
using std::string;

#include <iostream>
using std::cout;
using std::cin;
using std::endl;

#include <ofstream>
using std::ofstream;
#include <vector>
using std::vector;

using namespace std;
int main(){
  cout << "Let's create a Particle vector!" << endl;
  Electron* a = new Electron(10.0,20.0,30.0);
  cout << "Electron created" << endl;

  Muon* b = new Muon(30.0,20.0,10.0);
  cout << "Muon created" << endl;

  Photon* c = new Photon(20.0,10.0,30.0);
  cout << "Photon created" << endl;

  vector<Particle*> particlesContainer;
  particlesContainer.push_back(a);
  particlesContainer.push_back(b);
  particlesContainer.push_back(c);
  int size = particlesContainer.size();
  cout << "size is: " << size << endl;

  ofstream file("Muon_Vector.data");
  if (file.is_open()){
    for (int i = 0; i < size; i++){
      file << particlesContainer[0]->getType << endl;
    }
  }
  else {cout << "Unable to open file" << endl;}
  file.close();
  return 0;
}

尝试编译时收到错误：

“intParticles.cpp：15：20：致命错误：ofstream：没有这样的文件或目录编译终止。“

这是在输入之后：“g ++ -Wall Particle.cpp intParticles.cpp -o run”

任何有关出错的帮助都会感激不尽。我以为ofstream是标准库的一部分？

Answer 1

ofsteam是类，但不是头文件。它在'fstream'文件中定义

缺少<ofstream>：没有此类文件或目录</ofstream>

1 个答案: