Thread: hi plz help me in this topic

  1. #1
    Registered User
    Join Date
    Jan 2009

    hi plz help me in this topic

    void main()
    char temp[10];
    FILE *input1 = NULL;
    FILE *input2 = NULL;
    unsigned char buffer[100], lTempData[7][20];
    char *lPtr = NULL;
    int i =0;
    input1 = fopen("/u/n073313/vijay/File.txt", "rb");
    fread(buffer, 1,100, input1);
    printf("First line %s\n",buffer);
    lPtr = strtok(buffer, ",");
    strncpy(lTempData[i], lPtr, strlen(lPtr));
    while (lPtr != NULL)
    strncpy(lTempData[i], lPtr, strlen(lPtr));
    for (int j =0; j< 7 ; j++)
    printf("Values %s\n", lTempData[i]);
    int a = atol(lTempData[5]);
    int b = atol(lTempData[6]);
    int c = a+b;
    printf("Values %d %d result %d\n", a, b, c);
    sprintf(temp, "%d", c);
    input2 = fopen("File2.txt", "r");
    fwrite(c, 1, 10, input2);

    The i/p txt file is like this

    and i want to add 3.0+4.0=7.0
    First i want to read the txt file add last two columns writing it into another txt I written the code and i run the code i am getting

    Segmentation fault(coredump)

    please help me in this

    Thanks & regards

  2. #2
    and the hat of int overfl Salem's Avatar
    Join Date
    Aug 2001
    The edge of the known universe
    Asked already, only 8 minutes earlier.

    Patience is also a virtue of a programmer.
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.

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