Deterministic functions

Description

Specify which custom code functions are deterministic, that is, always producing the same outputs for the same inputs. If a custom code function is specified as deterministic, then a C Caller or C Function block that calls that function can be used in a For Each subsystem or with continuous sample time, and the block is optimized for use in conditional input branch execution. When a block is optimized for use in conditional input branch execution, it is executed only if it is in the active branch of a Switch or Multiport Switch block, both in simulation and in generated code. See Conditional input branch execution. This parameter is enabled only if Import custom code is selected.

Category: Simulation Target

Settings

Default: None

None: None of the custom code functions are deterministic.
All: All of the custom code functions are deterministic.
By function: The custom code functions that are deterministic are listed in Specify by function.

Note

If a C Function block references any custom code global variables in its code, then this parameter must be set to All in order for the block to be used in a For Each subsystem or with continuous sample time, or to be optimized for use in conditional input branch execution.

Command-Line Information

Parameter: DefaultCustomCodeDeterministicFunctions

Type: character vector

Value: 'None' | 'All' | 'ByFunction'

Default: 'None'

Recommended Settings

Application	Setting
Debugging	No impact
Traceability	No impact
Efficiency	No recommendation
Safety precaution	No recommendation