Define Missing Constructs

Step 2 of 4 in Header File and Dynamic Shared Library File on macOS

When you created the library definition file to the matrixOperations library in the previous step, MATLAB^® reported that five constructs are partially defined. To completely define the functionality, edit the definematrixlib.mlx file. If you have not yet opened the file, you can click the link in the output message to open it in Live Editor.

Definition file definematrixlib.mlx contains definitions for 10 constructs supported by MATLAB.
- 5 construct(s) are fully defined.
- 5 construct(s) partially defined and commented out.

To include the 5 undefined construct(s) in the interface, uncomment and complete the definitions in definematrixlib.mlx.
To build the interface, call build(definematrixlib).

Scroll through the library definition file open in your editor to find blocks of commented code for these constructs.

MATLAB cannot automatically determine the size of arguments used by these functions.

• setMat - C++ method for class Mat

• getMat - C++ method for class Mat

• copyMat - C++ method for class Mat

• addMat - C++ package function

• updateMatBySize - C++ package function

Based on the documentation of the matrixOperations library, you can provide values for <SHAPE> in the argument definition statements. For more information, see Define Missing SHAPE Parameter.

1. For each construct, uncomment the statements defining it.

2. Replace <SHAPE> arguments with these values.

   Construct	Argument Name	Argument C++ Definition	Description	Replace <SHAPE> with Value
   setMat	src	int [] src	The length of the matrix is defined by the input argument len.	"len"
   getMat	RetVal	int const *	The length of the output argument is defined by the input argument len.	"len"
   copyMat	dest	int * dest	The length dest is defined by the input argument len.	"len"
   addMat	mat	Mat const * mat	The function takes a single mat argument.	1
   updateMatBySize	arr	int * arr	The length arr is defined by the input argument len.	"len"

3. Save and close the definition file.

4. Continue with the next step.

Header File and Dynamic Shared Library File on macOS

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