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Table of Contents
- How the File System Opens a File
- Which to Use: HPFOPEN or FOPEN
- Opening a Disk File
- Opening a new disk file
- Opening a permanent disk file
- Opening a System-Defined File
- Opening $STDIN
- Opening $STDLIST
- Opening a Device File
- Device-dependent file characteristics
- New and permanent device files
- Opening an unlabeled magnetic tape file
- Opening a labeled magnetic tape file
Before your program can read, write, or otherwise manipulate a file, the
program must initiate access to that file by opening it with the
HPFOPEN/FOPEN intrinsic call. This call applies to both disk
files and device files. This chapter discusses how you can use HPFOPEN
to open various types of files supported by MPE/iX.
Examples of program segments are provided to illustrate HPFOPEN calls.
This chapter is divided into the following subjects:
how the file system opens a file which to use: HPFOPEN or FOPEN? opening a disk file opening a system-defined file opening a device file
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