Define an Alias Type in a C Function Block

This example shows how to specify alias data types in a C Function block. The model reads in a source and header file from the Configuration Parameters > Simulation Target pane. Calculations are performed using the functions in the source file.

Simulink.importExternalCTypes('multiply_func.h');
open_system('mCFunction_AliasType');

Define an Alias type in the header file

To define an alias type in your C source code to be used in your C Function block, use the typedef keyword. In this example, a double alias is defined as typedef double doubleAlias in the multiply_func.h file.

Specify the alias types in the C Function block

You must define your symbols in the Symbols table of the C Function block parameters. Define the symbols in the block as alias types by entering the alias type in the Type column of the Symbols table.