线程1:ExcIDBADIAccess(代码=1,地址=0x0)XCode C++

所以我尝试打开一个文件并在C++中解析一个文件(使用 initializeSimulation() . 我可以成功地打开文件,但是当我试图解析文件并将文件中的特定值存储到变量中时,我得到了 THREAD 1 错误。这个 DataParser.cpp 文件是我必须使用的文件,不能修改,我只是简单地调用它。我认为问题在于我的函数调用 getData() (用指针)但我似乎不明白为什么。现在设置变量的方式由于某种原因工作异常,直到我尝试存储 m_sMaxVal . 当我把它们都设置为指针时,我得到了一个不同的错误。我是新到C++,但请让我知道,如果你需要更多的信息,并提前感谢。

仿真.cpp

#include <iostream>
#include <stdio.h>
#include <stdlib.h>
#include "Simulation.hpp"
#include "dDataParser.h"

Simulation::Simulation() {}
Simulation::~Simulation(){}

void Simulation::initializeSimulation() {

    char *fileName;
    char *m_sType;
    char m_sMaterial;
    int m_iID;
    char m_sUnits;
    double m_sMinVal;
    double *m_sMaxVal;


    cout << "Enter the name of the data file:" << endl;
    cin >> fileName ;
    //cout << fileName << "\n" ;

    parser = new EnviroSimDataParser(fileName);
    parser ->getSensorData(m_sType, &m_sMaterial, &m_iID, &m_sUnits, &m_sMinVal, m_sMaxVal);
}

数据分析器.cpp

EnviroSimDataParser::EnviroSimDataParser(char *fileName)
{
char line[128];
strcpy(m_sFileName, fileName); 
inFile = new ifstream();
inFile->open(m_sFileName, fstream::in); // Open the data file
m_iNumSensors = 0;  // Number of sensors in the file
m_iNumDisplays = 0; // Number of display devices in the file
m_iNextSensor = 0;  // Next sensor number to read
m_iNextDisplay = 0; // Next display number to read

if(inFile->is_open())
{
    cout << "file opened successfully1 \n";
    // Count the number of sensors
    while(getNextLine(line, 127))
    {
        if(strcmp(line, "<SENSOR>") == 0)
            m_iNumSensors++;
        if(strcmp(line, "<DISPLAY_DEVICE>") == 0)
            m_iNumDisplays++;
    }

    inFile->close();
    cout << "file closed successfully1 \n";
}
else
{
    cout << "Failed to open file. Application terminated...\n";
    exit(0);
}
}
//-----

bool DataParser::getData(char *type, char *material, int *ID,
        char *units, double *minVal, double *maxVal)
{
    int sNum = 0;
    char line[128];

    // See if we have read all sensors
    if(m_iNextSensor >= m_iNumSensors) return false;

    // Reopen the file
    inFile = new ifstream();
    inFile->open(m_sFileName, fstream::in);
    if(inFile->is_open())
    {
        // Read to the the current sensor count
        while(getNextLine(line, 127))
        {
            if(strcmp(line, "<SENSOR>") == 0) // Got one
            {
                if(sNum == m_iNextSensor)
                {
                    // Get data on this one
                    while(getNextLine(line, 127))
                    {
                        // Get the type
                        if(strcmp(line, "<TYPE>") == 0)
                        {
                            if(getNextLine(line, 127))
                            {
                                strcpy(type, line); // Set the type
                            }
                            else
                                return false; // Oops!
                        }
                        else if(strcmp(line, "<MATERIAL>") == 0)
                        {
                            if(getNextLine(line, 127))
                            {
                                strcpy(material, line); // Set the material
                            }
                            else
                                return false; // Oops!
                        }
                        else if(strcmp(line, "<ID>") == 0)
                        {
                            if(getNextLine(line, 127))
                            {
                                *ID = atoi(line); // Set the ID
                            }
                            else
                                return false; // Oops!
                        }
                        else if(strcmp(line, "<UNITS>") == 0)
                        {
                            if(getNextLine(line, 127))
                            {
                                strcpy(units, line); // Set the units
                            }
                            else
                                return false; // Oops!
                        }
                        else if(strcmp(line, "<MINIMUM_VALUE>") == 0)
                        {
                            if(getNextLine(line, 127))
                            {
                                *minVal = atof(line); // Set the minimum value
                            }
                            else
                                return false; // Oops!
                        }
                        else if(strcmp(line, "<MAXIMUM_VALUE>") == 0)
                        {
                            if(getNextLine(line, 127))
                            {
                                *maxVal = atof(line); // Set the minimum value
                            }
                            else
                                return false; // Oops!
                        }
                        else if(strcmp(line, "</SENSOR>") == 0)
                        {
                            m_iNextSensor++; // Increment for next sensor
                            return true; // Got it
                        }
                    } // end while
                } // end if(sNum == m_iNextSensor)
                else
                {
                    sNum++; // Check the next one
                }
            }
        }
        inFile->close();
    } // end if file open
    return false; // If we get here we have got all the sensors
}

编辑: 调试程序在以下行停止

*maxVal = atof(line); //Set the minimum value