CODEWITHSUNDEEP
c++file-iostd
xcrypt
xcrypt

Reputation: 3376

std::fstream error

I'm having some trouble parsing a file

The last two lines of the file I want to parse are:

f 814/866/896 1035/1100/989 817/965/898

[nothing, effect from \n]

This is how I read the file:

while(!inFile.eof())
{
    inFile>>sCommand;

    if(sCommand == L"#") 
    {}
    else if(sCommand == L"f")
    {
        int iPos, iTex, iNorm;
        iPos=iTex=iNorm = -1;

        for(auto face=0; face<3; ++face)
        {
            inFile>>iPos;
            --iPos;
            if(inFile.peek() == L'/')
            {
                inFile.ignore();
                inFile>>iTex;
                --iTex;
                if(inFile.peek() == L'/')
                {
                    inFile.ignore();
                    inFile>>iNorm;
                    --iNorm;
                }
            }

            objVertexIndex iObj;
            iObj.iPos=iPos;
            iObj.iTex=iTex;
            iObj.iNorm=iNorm;
            this->AddVertex(iObj);
        }
        m_MaterialIndices_C.push_back(m_CurrentMaterial);
    } //END IF

    inFile.ignore( 1000, '\n' );
} //END WHILE
inFile.close();

However, I have some trouble with that last line of the file that contains nothing. Before the last line of the file, inFile.ignore( 1000, '\n' ); will happen and I would expect std::fstream::eof() to be detected, but for some reason it's not. And apparently sCommand will still be the same command from the previous line if there is nothing on a line, which is giving me some trouble.

Is there a way to check for this? And if yes, how?

Upvotes: 2

Views: 162

Answers (1)

MarcoS
MarcoS

Reputation: 160

Not really an answer but a comment (I don't know how to comment). If you have 2 \n after the last line with numbers eof will not trigger. I had similar problems using .eof() and might be better to check the content of what you read as a condition to keep reading or not.

Upvotes: 1

Related Questions