You can create a MATLAB® interface to shared libraries based on C++98 and commonly occurring C++11 features. However, if a library contains the following data types or language features, then the functionality is not included in the MATLAB interface to the library. You might be able to include this functionality by creating a wrapper header file. For more information, see C++ Limitation Workaround Examples.
Any type with a size greater than 64 bits, for example
Arrays of character types (
Pointers or arrays of
References to a pointer in a function
Pointers or references to enumerations
Reference data members
std smart pointers other than
Static data members
** pointers to primitive types, such as
double**. MATLAB supports
** pointers to custom classes used as function or method parameter types.
Multilevel pointers, such as
Class templates with incomplete or no instantiations
These types defined in the
std namespace are supported. All other types in the
std namespace are not supported.
If a library uses these data types, then the functionality is not included in the MATLAB interface to the library, and MATLAB displays messages like:
Did not add member 'methodName' to class 'ClassName' at HeaderFile.h:290. 'long double' is not a supported type.
Overloaded operator functions
Unnamed namespaces and classes
Function templates with incomplete or no instantiations
Creating objects of classes in
std namespace, including custom
Smart pointer semantics. Only
std::shared_ptr is supported.
MATLAB does not support operator overloads, move semantics, and the member
functions in the class definition of the smart pointer which might restrict their
effectiveness. Instead, a
std::shared_ptr<T> behaves as type
T in MATLAB. Type
T can be passed as input for
std::shared_ptr<T>, and type
T is received as
Namespace aliases. Use original namespace name instead.
Certain class methods that have MATLAB names are not supported. These methods are
When you build a library containing these features or usage, MATLAB displays:
Warning: Some C++ language constructs in the header file are not supported and not imported.
Saving C++ objects into a MAT-file is not supported.