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Validate that value is nonsparse or issue error





mustBeNonsparse(A) issues an error if A is sparse. This function does not return a value.

mustBeNonsparse accepts user-defined objects if the class of the object implements this method:


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Use mustBeNonsparse to validate that the input is nonsparse.

Use the sparse function to create a sparse matrix.

A = [ 0   0   0   5
      0   2   0   0
      1   3   0   0
      0   0   4   0];
S = sparse(A);

Validate that S is nonsparse.

Error using mustBeNonsparse (line 13)
Values must not be sparse.

This class constrains the value of Prop1 to nonsparse values.

classdef MyClass
      Prop1 {mustBeNonsparse}

Create an object and assign a value to its property.

obj = MyClass;
A = [ 0   0   0   5
      0   2   0   0
      1   3   0   0
      0   0   4   0];
obj.Prop1 = sparse(A);
Error setting 'Prop1' property of 'MyClass' class:
Values must not be sparse.

When you assign a value to the property, MATLAB® calls mustBeNonsparse with the value being assigned to the property. mustBeNonsparse issues an error because the value assigned to Prop1 is sparse.

Input Arguments

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Value to validate, specified as a scalar or array of any one of the following:

Data Types: single | double | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 | logical | char
Complex Number Support: Yes

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using MATLAB® Coder™.

Introduced in R2017a