Troubleshooting Calls to C/C++ Library Functions
R2026bThis topic describes common issues you might encounter when you call a function in a published MATLAB® interface to a C/C++ compiled library.
Library Interface Does Not Contain Any Instances of Type
To see what classes are available, see the documentation for your library. For library
libname, type:
doc clib.libnameIn some cases, a publisher might create a library interface that does not include classes or other functionality from the original C++ library. For information about how to include missing functionality in the MATLAB interface, see Define MATLAB Interface for C/C++ Library.
Invalid clib Array Element Type Name
The MATLAB name for a clib array element type includes clib and the
library name. For more information, see clibArray.
For example, for library libname containing class
MyClass, the clib array type is:
clib.array.libname.MyClass
and the MATLAB element type is:
clib.libname.MyClass
For fundamental C++ types, use upper camel case for the element type name. For example,
if the C++ type is double, then the clib array type is:
clib.array.libname.Double
and the MATLAB element type is:
clib.libname.Double
First Letter of Type Must Be Capitalized
When creating a clib array, MATLAB converts the names of fundamental C++ types to upper camel case.
For example, if the C++ type is signed int, then the MATLAB clib array type for library libname is:
clib.array.libname.SignedInt
and the element type is:
clib.libname.SignedInt
For strings, if the C++ type is std::string, then:
clib.array.libname.std.String % clib array type clib.libname.std.String % element type
