Programmer's Reference

File stream classes

The Common File System stream classes consist of three concrete classes that correspond to the three file access modes, and one abstract class.

CfsReadFileStream

This file stream class provides input services only and corresponds to the POSIX.1 ORDONLY access mode.

CfsWriteFileStream

This file stream class provides output services only and corresponds to the POSIX.1 OWRONLY access mode.

CfsReadWriteFileStream

This file stream class provides both input and output services, and corresponds to the POSIX.1 ORDWR access mode.

CfsFileStream

This is an abstract class used to create streams on existing open file descriptors, and to enable you to specify POSIX.1 open modes and flags directly when creating a new file stream. These operations are descripted in detail in Mixing streams and file descriptors.


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