无法读取文件

Question

I'm trying to read text from a .log file. I originally have it working aa windows console application but I'm now trying to make a GUI version using MFC. The problem is when i set the while loop as while(file.good()), it completely skips the loop and I'm not sure why because there are no errors with file.open()

void Conversion::toXml(CString openPath, CString savePath)
{
CString null("/0");

int c = openPath.GetLength(),q=0;
while(q<c)
{
    if(openPath[q] == '\\')
    {
        openPath.Insert(q,'\\');
        q++;
    }
    q++;
}

CStringA charstr(openPath);
const char* oPath((const char *) charstr);
CStringA charstr2(savePath);
const char* sPath((const char *) charstr2);

ifstream openFile;
ofstream savedFile(sPath);

string recText = "";
string temp;
openFile.open(oPath);

while(openFile.good())
{
    getline(openFile,temp);

    recText = recText + temp;
}

smaller version(should compile)

#include <iostream>
#include <fstream>
#include <string>
#include "stdio.h"
#include <windows.h>
#include <algorithm>
#include <atlstr.h> 


using namespace std;

int main()
{
string recText = "";
string temp;
CString path = "C:\\Users\\name\\Desktop\\2012-08-281.log";
CStringA charstr(path);
const char* oPath((const char *) charstr);


ifstream xmlDoc (oPath);
ofstream finished ("C:\\Users\\name\\Documents\\example3.xml");


while(xmlDoc.good())
{
    getline(xmlDoc,temp);

    recText = recText + temp;
}
    finished<<recText<<endl;
    return 0;

}

Answer 1

The problem might be that you try to escape the backslash when you don't need it, adding unnecessary backslashes in the path. Escaping backslashes is only needed for string literals . It might be that Windows doesn't like paths with multiple consecutive backslashes.