External Interfaces Reference |
Determine if input is sparse mxArray
C Syntax
Arguments
array_ptr
Pointer to an mxArray
.
Returns
Logical 1
(true
) if array_ptr
points to a sparse mxArray
, and logical 0
(false
) otherwise. A false
return value means that array_ptr
points to a full mxArray
or that array_ptr
does not point to a legal mxArray
.
Description
Use mxIsSparse
to determine if array_ptr
points to a sparse mxArray
. Many routines (for example, mxGetIr
and mxGetJc
) require a sparse mxArray
as input.
Examples
See phonebook.c
in the refbook
subdirectory of the examples
directory.
For additional examples, see mxgetnzmax.c
, mxsetdimensions.c
, and mxsetnzmax.c
in the mx
subdirectory of the examples
directory.
See Also
mxIsSingle | mxIsString (Obsolete) |
© 1994-2005 The MathWorks, Inc.