错误C2143:语法错误:缺少';' 之前'命名空间'

Question

我对C++和Open GL非常陌生,我一直在尝试在场景中显示3D对象.它与一个工作正常,但当我试图改变我的代码添加一秒,我的代码关于显示相机位置的HUD文本开始给出错误.显示上面的错误,它显然在sstream文件中(#include).我试过四处搜寻并寻求帮助,但没有任何帮助/我理解.当我注释掉#include行和使用它的代码时,我得到了类似的说法"错误C2143:语法错误:缺少';' 在我的main.cpp文件中'使用'之前.

我正在运行Visual Studio 2010,我甚至试图将整个事情重新打开,然后将代码复制到新项目中.非常感谢帮助.

#include <Windows.h>
#include <GL/gl.h>
#include <GL/glu.h>
#include "glut.h"
#include "SceneObject.h"
#include <fstream>
#include <sstream>
#include <iostream>
#include <string>
//#include <cmath>
//#include <limits>
//#include <cstdlib>

using namespace std;

...

stringstream ss;
ss << "Camera (" << cam.pos.x << ", " << cam.pos.y << ", " << cam.pos.z << ")";
glClear(GL_DEPTH_BUFFER_BIT);
outputText(-1.0, 0.5, ss.str());

...

#ifndef SCENEOBJECT_H
#define SCENEOBJECT_H
#include <string>
#include <iostream>
#include <fstream>

using namespace std;

struct point3D {
    float x;
    float y;
    float z;
};

struct colour{
    float r;
    float g;
    float b;
};

struct tri {
    int a;
    int b;
    int c;
};

class SceneObject {
private:
    int NUM_VERTS;
    int NUM_COL;
    int NUM_TRI;
    point3D  * vertices;
    colour * colours;
    tri  * indices;
    void drawTriangle(int a, int b, int c);
public:
    SceneObject(const string fName) {
        read_file(fName);
    }
    void drawShape()
    {
        // DO SOMETHING HERE
    }
    int read_file (const string fileName)
    {
    ifstream inFile;
    inFile.open(fileName);

    if (!inFile.good())
    {
        cerr  << "Can't open file" << endl;
        NUM_TRI = 0;
        return 1;
    }

    //inFile >> shapeID;

    inFile >> NUM_VERTS;
    vertices = new point3D[NUM_VERTS];

    for (int i=0; i < NUM_VERTS; i++)
    {   
        inFile >> vertices[i].x;
        inFile >> vertices[i].y;
        inFile >> vertices[i].z;
    }

    inFile >> NUM_COL;
    //inFile >> randomCol;
    colours = new colour[NUM_COL];
    /*if (randomCol == 'y')
    {
        for (int i=0; i < NUM_COL; i++)
        {
            colours[i].r = ((float) rand() / (RAND_MAX+1));
            colours[i].g = ((float) rand() / (RAND_MAX+1));
            colours[i].b = ((float) rand() / (RAND_MAX+1));
        }
    }
    else if (randomCol == 'n')
    {*/
        for (int i=0; i < NUM_COL; i++)
        {   
            inFile >> colours[i].r;
            inFile >> colours[i].g;
            inFile >> colours[i].b;
        }
    //}

    inFile >> NUM_TRI;
    indices = new tri[NUM_TRI];

    for (int i=0; i < NUM_TRI; i++)
    {   
        inFile >> indices[i].a;
        inFile >> indices[i].b;
        inFile >> indices[i].c;
    }

    inFile.close();
    return 0;
}
}
#endif

我没有改变代码,据我所知,有一些半冒号有意.即使我的朋友已经编程了5年也无法解决这个问题.如果需要,我将包括任何其他特定代码.当我说新的C++和OpenGL时,我真的很新.这甚至是我的第一篇文章.我最终会到达那里.

Answer 1

你必须把';' 每节课后

这意味着

class foo{
public:
   void bar();
};

我想你错过了最后一个分号.