MATLAB COMPILER RELEASE NOTES Guia do Utilizador descarregar pdf (Página 336)

100

101

R2010a

13-18

Programming

Subscripting Into Function Return Values

If you have a function, such as the following, that returns a struct array:

function structOut = getStruct

structOut = struct('fieldA', 5, 'fieldB', 10);

it is no longer valid to access fields of the structure by directly dot indexing the function's

return value, as shown here:

getStruct.fieldA

Instead, you should first assign the returned structure to a variable, and then dot index

the variable:

s = getStruct;

s.fieldA

ans =

This type of field access has never been allowed within function code, and this change

causes scripts and command line statements to be in agreement with function rules.

Compatibility Considerations

If you have scripts that employ this type of dot indexing, they will now throw an error.

Replace this unsupported style of dot indexing with the style shown above.

New Constructor for Map Containers

The following command constructs an empty containers.Map object that uses a key

type of kType, and a value type of vType:

M = containers.Map('KeyType', kType, 'ValueType', vType)

See the containers.Map function reference page for more information.

Function Handle Access to Private and Protected Methods

When creating a function handle inside a method of a class, the function is resolved

using the permissions of that method. When MATLAB invokes the function handle,

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