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cfgetsfile-read

Reading from file using fgets

I am reading from file of format

1 32 43 23
32 43
123 43 54 243 
123 2222
2

Here is my code snippet.

string[100];
while(!feof(fp))
    fgets(string,100,fp)

Now, when I put every string, in the last string I am getting repetition and some more ambiguities (like something else also gets printed say 123 or so).

How to solve this problem?

Solution

  • You need to check the return value of fgets. If a read has been successful, fgets returns the pointer to the buffer that you passed to it (i.e. string in your example). If the End-of-File is encountered and no characters have been read, fgets returns NULL.

    Try this:

    char string[100];
while(fgets(string, 100, fp)) {
    printf("%s\n", string);
}