| External Interfaces/API Reference | |
Get (as an enumerated constant) an mxArray's class
C Syntax
Arguments
array_ptr
Pointer to an mxArray.
Returns
The class (category) of the mxArray that array_ptr points to. Classes are:
mxUNKNOWN_CLASS
The class cannot be determined. You cannot specify this category for an mxArray; however, mxGetClassID can return this value if it cannot identify the class.
mxCELL_CLASS
Identifies a cell mxArray.
mxSTRUCT_CLASS
Identifies a structure mxArray.
mxOBJECT_CLASS
Identifies a user-defined (nonstandard) mxArray.
mxCHAR_CLASS
Identifies a string mxArray; that is an mxArray whose data is represented as mxCHAR's.
mxLOGICAL_CLASS
Identifies a logical mxArray; that is, an mxArray that stores logical values representing true and false.
mxDOUBLE_CLASS
Identifies a numeric mxArray whose data is stored as double-precision, floating-point numbers.
mxSINGLE_CLASS
Identifies a numeric mxArray whose data is stored as single-precision, floating-point numbers.
mxINT8_CLASS
Identifies a numeric mxArray whose data is stored as signed 8-bit integers.
mxUINT8_CLASS
Identifies a numeric mxArray whose data is stored as unsigned 8-bit integers.
mxINT16_CLASS
Identifies a numeric mxArray whose data is stored as signed 16-bit integers.
mxUINT16_CLASS
Identifies a numeric mxArray whose data is stored as unsigned 16-bit integers.
mxINT32_CLASS
Identifies a numeric mxArray whose data is stored as signed 32-bit integers.
mxUINT32_CLASS
Identifies a numeric mxArray whose data is stored as unsigned 32-bit integers.
mxINT64_CLASS
Reserved for possible future use.
mxUINT64_CLASS
Reserved for possible future use.
mxFUNCTION_CLASS
Identifies a function handle mxArray.
Description
Use mxGetClassId to determine the class of an mxArray. The class of an mxArray identifies the kind of data the mxArray is holding. For example, if array_ptr points to a logical mxArray, then mxGetClassID returns mxLOGICAL_CLASS.
mxGetClassID is similar to mxGetClassName, except that the former returns the class as an enumerated value and the latter returns the class as a string.
Examples
See phonebook.c in the refbook subdirectory of the examples directory and explore.c in the mex subdirectory of the examples directory.
See Also
| | mxGetChars | mxGetClassName | |