how to stop CSE dont repeat CSE

Question

#include <stdio.h>
#define BUFFER_SIZE 80
int main()
{
   FILE* fp = fopen("fp.txt" ,"r");
   char buf[BUFFER_SIZE];
   if(fp!=NULL)
    {
         while (!feof(fp))
            {
                fscanf(fp ,"%s",buf);
                  printf("Read line: %s\n" ,buf);\
                  printf("\n");
            }
    }
    fclose(fp);
}
//need create fp file 
    UW
    CSE

how to stop CSE dont repeat CSE again. Can you use condition if-else do-while etc.

You want to stop CSE not repeating CSE again? I.e. you want it to repeat CSE another time? — Yunnosch, Oct 12 '17 at 06:20
Please provide sample input, current output, desired output and explain the difference. Also please include in your output the values returned by fscanf(). — Yunnosch, Oct 12 '17 at 06:21

score 0 · Answer 1 · answered Oct 12 '17 at 06:28

0

Please see Why is “while ( !feof (file) )” always wrong? The function feof does not do what many beginners imagine.

The reason why you repeat the input CSE, is because after you read beyond the end of the file, that data remains in the buffer.

I advise you to change the loop to

while (fscanf(fp, "%79s", buf) == 1) {
    printf("Read line: %s\n", buf);
}

answered Oct 12 '17 at 06:28

Weather Vane

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Minor point on code formatting: the space character is usually typed *after* a comma, not before it. – Weather Vane Oct 12 '17 at 06:33

how to stop CSE dont repeat CSE

1 Answers1