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Chapter 8 FILE PROCCESSING 8.1 Introduction 8.2 Introduction to File I/O 8.2.1 declaring FILE variables 8.2.2 opening a Disk Files for I/O   file open verification 8.2.3 reading and writing to Disk File 8.2.4 closing a Disk Files 8.2.5  EOF
8.1  Introduction ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
8.1  Introduction (cont..) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
8.1  Introduction (cont..) ,[object Object],[object Object],[object Object],[object Object]
8.2  Introduction to file I/O ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
8.2.1 Declaring FILE variable ,[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],8.2.2 Opening a File, fopen previous  sourcecode
8.2.2 Opening a File (cont..) ,[object Object],[object Object],[object Object]
8.2.2 Opening a File (cont..) Table: 8.1 Filename and mode Read & write, but append instead of overwrite “ a+” Open file to write, but append instead of overwrite “ a” Read & Write, do not destroy file if it exists “ r+” Open file to read “ r” Read & write, but overwrite file if it exists “ w+” Open file to write (create a file) “ w” description Mode
mode (r) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
mode (a) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],File open verification
File open verification (cont..) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
8.2.3  Writing to Disk File ,[object Object],[object Object],[object Object],[object Object],previous  sourcecode
fputs( ) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
8.2.3  Reading to Disk File ,[object Object],[object Object],[object Object],[object Object],previous  sourcecode
fgets( ) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
8.2.4 Closing a Disk File ,[object Object],[object Object],[object Object],fp is a pointer file variable
End of File (EOF) ,[object Object],[object Object],[object Object],[object Object]
End of File (EOF) (cont..) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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Ch8 file processing

  • 1. Chapter 8 FILE PROCCESSING 8.1 Introduction 8.2 Introduction to File I/O 8.2.1 declaring FILE variables 8.2.2 opening a Disk Files for I/O file open verification 8.2.3 reading and writing to Disk File 8.2.4 closing a Disk Files 8.2.5 EOF
  • 2.
  • 3.
  • 4.
  • 5.
  • 6.
  • 7.
  • 8.
  • 9.
  • 10. 8.2.2 Opening a File (cont..) Table: 8.1 Filename and mode Read & write, but append instead of overwrite “ a+” Open file to write, but append instead of overwrite “ a” Read & Write, do not destroy file if it exists “ r+” Open file to read “ r” Read & write, but overwrite file if it exists “ w+” Open file to write (create a file) “ w” description Mode
  • 11.
  • 12.
  • 13.
  • 14.
  • 15.
  • 16.
  • 17.
  • 18.
  • 19.
  • 20.
  • 21.
  • 22.