text line termination

This is a discussion on text line termination within the C Programming forums, part of the General Programming Boards category; How do I remove a line of text in a text file pointed to by a FILE pointer without removing ...

  1. #1
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    Post text line termination

    How do I remove a line of text in a text file pointed to by a FILE pointer without removing any other text.

    i,ve got.

    FILE f_ptr;

    f_ptr-fopen("filename","a+")
    fseek(f_ptr,0,SEEK_SET); /* file beginning */

    /* need to remove line of text here and move all subsequent lines up by a line or write to this removed line space later in prog */

    thx for the help.

  2. #2
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    Depends what you are reading is it an array of strings or structure post the remainder of your code so we can see.
    hoping to be certified (programming in c)
    here's the news - I'm officially certified.

  3. #3
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    if you wanna remove a line of text first of all declare file like this

    Code:
    FILE *fileptr = fopen("file.txt","r+");/* Allows you to read and write to a file.*/
    Then find the start of the line you want and do want you want to do.

  4. #4
    Guest Sebastiani's Avatar
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    Or try this psuedocode:

    for(...Iteration... )
    { fgets(Array,Size,FILE* ); }

    //close file

    //...declare another array...copy selectively... //
    for(...Iteration... )
    { ...Print New Array... }
    Last edited by Sebastiani; 09-09-2001 at 04:41 AM.
    Code:
    #include <cmath>
    #include <complex>
    bool flip(bool value)
    {
           return std::pow
        (
            std::complex<float>(std::exp(1.0)), 
            std::complex<float>(0, 1) * std::complex<float>(std::atan(1.0)*(1 << (value + 2)))
        ).real() < 0;
    }

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