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- ---- Chapter 5: Accessing the modules -----------------------------------------
-
- This chapter explains the functions that are available in various workspaces
- on the disk to access the facilities provided by the modules.
-
- ---- 5.1 The disk filing functions -------------------------------------------
-
- The disk filing module (DFILE) is built into the IAPL.TOS program. To access
- it you need to use the functions contained in the DFILE workspace. This
- workspace can be loaded or copied in as required. The DFILE functions are
- designed to give easy access to any disk file for reading and writing. The
- functions are as follows:
-
- DFOPEN ~w
- This attempts to open the file named in character vector ~w for reading
- and writing. It returns one for success, otherwise zero. Note that if
- a file is already open, then it is closed first - only one file can be
- open at a time. If the file is successfully opened then it is set up
- ready to be read from the beginning, ie the current position is set
- to t ---- Chapter 5: Accessing the modules -----------------------------------------
-
- This chapter explains the functions that are available in various workspaces
- on the disk to access the facilities provided by the modules.
-
- ---- 5.1 The disk filing functions -------------------------------------------
-
- The disk filing module (DFILE) is built into the IAPL.TOS program. To access
- it you need to use the functions contained in the DFILE workspace. This
- workspace can be loaded or copied in as required. The DFILE functions are
- designed to give easy access to any disk file for reading and writing. The
- functions are as follows:
-
- DFOPEN ~w
- This attempts to open the file named in character vector ~w for reading
- and writing. It returns one for success, otherwise zero. Note that if
- a file is already open, then it is closed first - only one file can be
- open at a time. If the file is successfully opened then it is set up
- ready to be read from the beginning, ie the current position is set
- to t ---- Chapter 5: Accessing the modules -----------------------------------------
-
- This chapter explains the functions that are available in various workspaces
- on the disk to access the facilities provided by the modules.
-
- ---- 5.1 The disk filing functions -------------------------------------------
-
- The disk filing module (DFILE) is built into the IAPL.TOS program. To access
- it you need to use the functions contained in the DFILE workspace. This
- workspace can be loaded or copied in as required. The DFILE functions are
- designed to give easy access to any disk file for reading and writing. The
- functions are as follows:
-
- DFOPEN ~w
- This attempts to open the file named in character vector ~w for reading
- and writing. It returns one for success, otherwise zero. Note that if
- a file is already open, then it is closed first - only one file can be
- open at a time. If the file is successfully opened then it is set up
- ready to be read from the beginning, ie the current position is set
- to t ---- Chapter 5: Accessing the modules -----------------------------------------
-
- This chapter explains the functions that are available in various workspaces
- on the disk to access the facilities provided by the modules.
-
- ---- 5.1 The disk filing functions -------------------------------------------
-
- The disk filing module (DFILE) is built into the IAPL.TOS program. To access
- it you need to use the functions contained in the DFILE workspace. This
- workspace can be loaded or copied in as required. The DFILE functions are
- designed to give easy access to any disk file for reading and writing. The
- functions are as follows:
-
- DFOPEN ~w
- This attempts to open the file named in character vector ~w for reading
- and writing. It returns one for success, otherwise zero. Note that if
- a file is already open, then it is closed first - only one file can be
- open at a time. If the file is successfully opened then it is set up
- ready to be read from the beginning, ie the current position is set
- to t ---- Chapter 5: Accessing the modules -----------------------------------------
-
- This chapter explains the functions that are available in various workspaces
- on the disk to access the facilities provided by the modules.
-
- ---- 5.1 The disk filing functions -------------------------------------------
-
- The disk filing module (DFILE) is built into the IAPL.TOS program. To access
- it you need to use the functions contained in the DFILE workspace. This
- workspace can be loaded or copied in as required. The DFILE functions are
- designed to give easy access to any disk file for reading and writing. The
- functions are as follows:
-
- DFOPEN ~w
- This attempts to open the file named in character vector ~w for reading
- and writing. It returns one for success, otherwise zero. Note that if
- a file is already open, then it is closed first - only one file can be
- open at a time. If the file is successfully opened then it is set up
- ready to be read from the beginning, ie the current position is set
- to t ---- Chapter 5: Accessing the modules -----------------------------------------
-
- This chapter explains the functions that are available in various workspaces
- on the disk to access the facilities provided by the modules.
-
- ---- 5.1 The disk filing functions -------------------------------------------
-
- The disk filing module (DFILE) is built into the IAPL.TOS program. To access
- it you need to use the functions contained in the DFILE workspace. This
- workspace can be loaded or copied in as required. The DFILE functions are
- designed to give easy access to any disk file for reading and writing. The
- functions are as follows:
-
- DFOPEN ~w
- This attempts to open the file named in character vector ~w for reading
- and writing. It returns one for success, otherwise zero. Note that if
- a file is already open, then it is closed first - only one file can be
- open at a time. If the file is successfully opened then it is set up
- ready to be read from the beginning, ie the current position is set
- to t ---- Chapter 5: Accessing the modules -----------------------------------------
-
- This chapter explains the functions that are available in various workspaces
- on the disk to access the facilities provided by the modules.
-
- ---- 5.1 The disk filing functions -------------------------------------------
-
- The disk filing module (DFILE) is built into the IAPL.TOS program. To access
- it you need to use the functions contained in the DFILE workspace. This
- workspace can be loaded or copied in as required. The DFILE functions are
- designed to give easy access to any disk file for reading and writing. The
- functions are as follows:
-
- DFOPEN ~w
- This attempts to open the file named in character vector ~w for reading
- and writing. It returns one for success, otherwise zero. Note that if
- a file is already open, then it is closed first - only one file can be
- open at a time. If the file is successfully opened then it is set up
- ready to be read from the beginning, ie the current position is set
- to t ---- Chapter 5: Accessing the modules -----------------------------------------
-
- This chapter explains the functions that are available in various workspaces
- on the disk to access the facilities provided by the modules.
-
- ---- 5.1 The disk filing functions -------------------------------------------
-
- The disk filing module (DFILE) is built into the IAPL.TOS program. To access
- it you need to use the functions contained in the DFILE workspace. This
- workspace can be loaded or copied in as required. The DFILE functions are
- designed to give easy access to any disk file for reading and writing. The
- functions are as follows:
-
- DFOPEN ~w
- This attempts to open the file named in character vector ~w for reading
- and writing. It returns one for success, otherwise zero. Note that if
- a file is already open, then it is closed first - only one file can be
- open at a time. If the file is successfully opened then it is set up
- ready to be read from the beginning, ie the current position is set
- to t ---- Chapter 5: Accessing the modules -----------------------------------------
-
- This chapter explains the functions that are available in various workspaces
- on the disk to access the facilities provided by the modules.
-
- ---- 5.1 The disk filing functions -------------------------------------------
-
- The disk filing module (DFILE) is built into the IAPL.TOS program. To access
- it you need to use the functions contained in the DFILE workspace. This
- workspace can be loaded or copied in as required. The DFILE functions are
- designed to give easy access to any disk file for reading and writing. The
- functions are as follows:
-
- DFOPEN ~w
- This attempts to open the file named in character vector ~w for reading
- and writing. It returns one for success, otherwise zero. Note that if
- a file is already open, then it is closed first - only one file can be
- open at a time. If the file is successfully opened then it is set up
- ready to be read from the beginning, ie the current position is set
- to t ---- Chapter 5: Accessing the modules -----------------------------------------
-
- This chapter explains the functions that are available in various workspaces
- on the disk to access the facilities provided by the modules.
-
- ---- 5.1 The disk filing functions -------------------------------------------
-
- The disk filing module (DFILE) is built into the IAPL.TOS program. To access
- it you need to use the functions contained in the DFILE workspace. This
- workspace can be loaded or copied in as required. The DFILE functions are
- designed to give easy access to any disk file for reading and writing. The
- functions are as follows:
-
- DFOPEN ~w
- This attempts to open the file named in character vector ~w for reading
- and writing. It returns one for success, otherwise zero. Note that if
- a file is already open, then it is closed first - only one file can be
- open at a time. If the file is successfully opened then it is set up
- ready to be read from the beginning, ie the current position is set
- to t ---- Chapter 5: Accessing the modules -----------------------------------------
-
- This chapter explains the functions that are available in various workspaces
- on the disk to access the facilities provided by the modules.
-
- ---- 5.1 The disk filing functions -------------------------------------------
-
- The disk filing module (DFILE) is built into the IAPL.TOS program. To access
- it you need to use the functions contained in the DFILE workspace. This
- workspace can be loaded or copied in as required. The DFILE functions are
- designed to give easy access to any disk file for reading and writing. The
- functions are as follows:
-
- DFOPEN ~w
- This attempts to open the file named in character vector ~w for reading
- and writing. It returns one for success, otherwise zero. Note that if
- a file is already open, then it is closed first - only one file can be
- open at a time. If the file is successfully opened then it is set up
- ready to be read from the beginning, ie the current position is set
- to t ---- Chapter 5: Accessing the modules -----------------------------------------
-
- This chapter explains the functions that are available in various workspaces
- on the disk to access the facilities provided by the modules.
-
- ---- 5.1 The disk filing functions -------------------------------------------
-
- The disk filing module (DFILE) is built into the IAPL.TOS program. To access
- it you need to use the functions contained in the DFILE workspace. This
- workspace can be loaded or copied in as required. The DFILE functions are
- designed to give easy access to any disk file for reading and writing. The
- functions are as follows:
-
- DFOPEN ~w
- This attempts to open the file named in character vector ~w for reading
- and writing. It returns one for success, otherwise zero. Note that if
- a file is already open, then it is closed first - only one file can be
- open at a time. If the file is successfully opened then it is set up
- ready to be read from the beginning, ie the current position is set
- to t ---- Chapter 5: Accessing the modules -----------------------------------------
-
- This chapter explains the functions that are available in various workspaces
- on the disk to access the facilities provided by the modules.
-
- ---- 5.1 The disk filing functions -------------------------------------------
-
- The disk filing module (DFILE) is built into the IAPL.TOS program. To access
- it you need to use the functions contained in the DFILE workspace. This
- workspace can be loaded or copied in as required. The DFILE functions are
- designed to give easy access to any disk file for reading and writing. The
- functions are as follows:
-
- DFOPEN ~w
- This attempts to open the file named in character vector ~w for reading
- and writing. It returns one for success, otherwise zero. Note that if
- a file is already open, then it is closed first - only one file can be
- open at a time. If the file is successfully opened then it is set up
- ready to be read from the beginning, ie the current position is set
- to t ---- Chapter 5: Accessing the modules -----------------------------------------
-
- This chapter explains the functions that are available in various workspaces
- on the disk to access the facilities provided by the modules.
-
- ---- 5.1 The disk filing functions -------------------------------------------
-
- The disk filing module (DFILE) is built into the IAPL.TOS program. To access
- it you need to use the functions contained in the DFILE workspace. This
- workspace can be loaded or copied in as required. The DFILE functions are
- designed to give easy access to any disk file for reading and writing. The
- functions are as follows:
-
- DFOPEN ~w
- This attempts to open the file named in character vector ~w for reading
- and writing. It returns one for success, otherwise zero. Note that if
- a file is already open, then it is closed first - only one file can be
- open at a time. If the file is successfully opened then it is set up
- ready to be read from the beginning, ie the current position is set
- to t ---- Chapter 5: Accessing the modules -----------------------------------------
-
- This chapter explains the functions that are available in various workspaces
- on the disk to access the facilities provided by the modules.
-
- ---- 5.1 The disk filing functions -------------------------------------------
-
- The disk filing module (DFILE) is built into the IAPL.TOS program. To access
- it you need to use the functions contained in the DFILE workspace. This
- workspace can be loaded or copied in as required. The DFILE functions are
- designed to give easy access to any disk file for reading and writing. The
- functions are as follows:
-
- DFOPEN ~w
- This attempts to open the file named in character vector ~w for reading
- and writing. It returns one for success, otherwise zero. Note that if
- a file is already open, then it is closed first - only one file can be
- open at a time. If the file is successfully opened then it is set up
- ready to be read from the beginning, ie the current position is set
- to t ---- Chapter 5: Accessing the modules -----------------------------------------
-
- This chapter explains the functions that are available in various workspaces
- on the disk to access the facilities provided by the modules.
-
- ---- 5.1 The disk filing functions -------------------------------------------
-
- The disk filing module (DFILE) is built into the IAPL.TOS program. To access
- it you need to use the functions contained in the DFILE workspace. This
- workspace can be loaded or copied in as required. The DFILE functions are
- designed to give easy access to any disk file for reading and writing. The
- functions are as follows:
-
- DFOPEN ~w
- This attempts to open the file named in character vector ~w for reading
- and writing. It returns one for success, otherwise zero. Note that if
- a file is already open, then it is closed first - only one file can be
- open at a time. If the file is successfully opened then it is set up
- ready to be read from the beginning, ie the current position is set
- to t