$I: I/O Checking Switch


3.2.7. $D: Debug Information Switch	Table of Contents	3.2.9. $I: Include File Directive

- 3.2.8. - Table of Contents

3. Compiler Directives

3.2. Switch and Parameter Directives

3.2.8. $I: I/O Checking Switch

Targets: MS-DOS, OS/2, Win32

Compiler directives

Enables or disables the automatic code generation that checks the result of a call to an I/O procedure.

Syntax:

  {$I+} or {$I-}

Default:

  {$I+}

Remarks:
If an I/O procedure returns a non-zero I/O result when the $I switch is on, the program terminates, displaying a run-time error message.

When the $I switch is off, you should use the IOResult function to check for I/O errors.


3.2.7. $D: Debug Information Switch	Table of Contents	3.2.9. $I: Include File Directive

- 3.2.8. -