setFunction

Set code mapping information for model function

Since R2021a

Syntax

setFunction(myCPPMappingObj,function,Name,Value)

Description

setFunction(myCPPMappingObj,function,Name,Value) sets code mapping information for the specified model function. Use this function to set the method name for a model function. For single-tasking periodic functions and Simulink^® functions, you can use this function to set the argument specification, including argument names, type qualifiers, and argument order.

Examples

Set the Method Name for the Initialize Function for a Model

Open the model. To access the CodeMappingCPP object associated with the model, use the coder.mapping.api.get function.

open_system('CppClassRateBased');
cm = coder.mapping.api.get('CppClassRateBased');

To access the method name of the initialize function for the model, use the getFunction function. If you did not specify a method name for the initialize function, the getFunction function returns an empty character vector, and the method name in the generated code uses the default method name.

value = getFunction(cm, 'Initialize', 'MethodName')

value = 
'initIntegrator'

Specify a method name for the initialize function by using the setFunction function.

setFunction(cm, 'Initialize', 'MethodName', 'my_$N')

The getFunction function now returns the specified method name.

value = getFunction(cm, 'Initialize', 'MethodName')

value = 
'my_$N'

Input Arguments

myCPPMappingObj — C++ code mapping object

CodeMappingCPP object

C++ code mapping object, returned by a call to either the coder.mapping.utils.create function or the coder.mapping.api.get function.

function — Model function

Initialize | Terminate | Periodic:slIdentifier | Partition:slIdentifier | Reset:slIdentifier | ExportedFunction:slIdentifier | SimulinkFunction:slIdentifier

Model function for which to set code mapping property value. Specify one of the values listed in this table.

Type of Model Function	Value
Exported function	ExportedFunction:slIdentifier, where slIdentifier is the name of the function-call Inport block in the model
Initialize function	Initialize
Partition function	Partition:slIdentifier, where slIdentifier is a partition that was created explicitly from a block in the model and shown in the Simulink Schedule Editor (for example, P1)
Periodic multitasking function	Periodic:slIdentifier, where slIdentifier is an annotation that corresponds to the sample time period for a periodic or continuous rate of a multi-tasking model (for example, D1)
Periodic single-tasking function	Periodic
Reset function	Reset:slIdentifier, where slIdentifier is the name of the reset function in the model
Simulink function	SimulinkFunction:slIdentifier, where slIdentifier is the name of the Simulink function in the model
Terminate function	Terminate

For information about model partitioning, see Create Partitions.

Example: 'Periodic:D1'

Name-Value Arguments

Example: 'MethodName', 'my_$N'

Specify comma-separated pairs of Name,Value arguments. Name is the argument name and Value is the corresponding value. Name must appear inside quotes. You can specify several name and value pair arguments as Name1,Value1,…,NameN,ValueN. The order of the name and value pair arguments does not matter.

MethodName — Name of method

character vector | string scalar

Name for the entry-point method in the generated C++ code, specified as a character vector or string scalar.

Data Types: char | string

Arguments — Argument specification

character vector | string scalar

Argument specification for the entry-point method in the generated C++ code, specified as a character vector or string scalar. The specification is a method prototype that shows argument names, type qualifiers, and argument order, for example, 'y =(u1, const *u2)'.

For an entry-point method that does not return a value, do not include an output argument in the prototype specification. For example,

setFunction(cm, 'SimulinkFunction:f','Arguments','(u, *y)');

When the model function specified is a periodic function, you can also customize parameter names in the argument specification.

setFunction(cm,'Periodic:D1','Arguments',...
'(In1_1s & myParam1, In2_2s arg_In2_2s, * Out1 arg_Out1)');

Data Types: char | string

Version History

Introduced in R2021a