Thread: hi plz help me in this topic

  1. #1
    Registered User
    Join Date
    Jan 2009
    Posts
    26

    hi plz help me in this topic

    Code:
     
    #include<stdio.h>
    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)
    {
    i++;
    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);
    fclose(input1);
    fclose(input2);
    
    }
    
    }

    The i/p txt file is like this
    939,MUM,ord,396,2,3.0,4.0
    100,bom,nru,1009,10,4.0,6.0

    and i want to add 3.0+4.0=7.0
    i.e
    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
    ------------------------------------
    939,MUM,ord,396,2,3.0,4.0
    100,bom,nru,1009,10,4.0,6.0

    Segmentation fault(coredump)
    ----------------------------------------------

    please help me in this

    Thanks & regards
    vijay

  2. #2
    and the hat of int overfl Salem's Avatar
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    Asked already, only 8 minutes earlier.
    http://cboard.cprogramming.com/showthread.php?t=111100

    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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