Keep extrinsic calls

Extrinsic function call support

Description

App Configuration Pane: Speed

Configuration Objects: coder.MexCodeConfig

Extrinsic function call support.

The value of ExtrinsicCalls affects how a MEX function generates random numbers for rand, randi, and randn. If ExtrinsicCalls is true, the MEX function uses the MATLAB^® global random number stream to generate random numbers. Otherwise, the MEX function uses a self-contained random number generator.

See Use MATLAB Engine to Execute a Function Call in Generated Code.

Settings

On

This value is the default value.

For an extrinsic function, the code generator produces a call to a MATLAB function. The code generator does not generate the internal code for the function.

Off

The code generator ignores an extrinsic function. It does not generate code for the call to the MATLAB function. If the extrinsic function affects the output of the MATLAB function, the code generator issues a warning.

If you set ExtrinsicCalls to false, the generated MEX function cannot display run-time messages from error or assert statements in your MATLAB code. The MEX function reports that it cannot display the error message. To see the error message, set ExtrinsicCalls to true and generate the MEX function again.

Programmatic Use

Property: ExtrinsicCalls

Values: true | false

Default: true

Version History

Introduced in R2011a