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1. Offset used in fseek() function call can be a negative number.



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  • By: guest on 01 Jun 2017 06.02 pm
    True, offset in fseek() function can be a negative number. It makes the file pointer to move backwards from the current position. Declaration: retval = fseek( fp, offset, from ); Where: FILE *fp; = points to the file on which I/O is to be repositioned. long offset; = is an integer giving the number of bytes to move forward or backward in the file. This may be positive or negative. int from; = is one of the manifests SEEK_SET, SEEK_CUR, or SEEK_END. int retval; = is non-zero if the seek operation was invalid (e.g. on a file not opened with a "b" option); otherwise, the return value is zero.
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