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EOF & Fseek ()

EOF & Fseek (). Group 7 Haslyn Martin Angelica Silva Catherine Alviz. Outline. Diagram Definition Functions Examples Summary. Diagram. Create file. Write to file. Read file. Seek file element. Print element. Definition.

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EOF & Fseek ()

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  1. EOF & Fseek() Group 7 Haslyn Martin Angelica Silva Catherine Alviz

  2. Outline • Diagram • Definition • Functions • Examples • Summary

  3. Diagram Create file Write to file Read file Seek file element Print element

  4. Definition • End of file (commonly abbreviated EOF) is a condition in a computer operating system where no more data can be read from a data source. The data source is usually called a file or stream. • fseek() sets the file position indicator associated with file stream according to the values of offset and origin and supports random access I/O operations.

  5. Functions • fgets(): The function fgets() reads up to num - 1 characters from the given file stream and dumps them into str. • fopen(): The fopen() function opens a file indicated by fname and returns a stream associated with that file. • fread(), reads count number of objects size bytes in length from the stream pointed to by file stream and stores them in the array pointed to by buf.

  6. Functions • feof(): The function feof() returns a nonzero value if the end of the given file stream has been reached. • fprintf(): The fprintf() function sends information (the arguments) according to the specified format to the file indicated by stream. • fwrite(), writes count number of objects, each object size bytes in length, to the stream pointed to by file stream from the character array pointed to by buf

  7. Example 1

  8. Example 1

  9. Example 2

  10. Example 2

  11. Example 3

  12. Example 3

  13. Summary The EOF and the fseek functions are designed to open, write, and print a user specified text file to read and display it line by line until the end of file is reached.

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