External Interfaces Reference |
Set imaginary data pointer for mxArray
Fortran Syntax
Arguments
pi
Pointer to the first element of an array. Each element in the array contains the imaginary component of a value. The array must be in dynamic memory; call mxCalloc
to allocate this dynamic memory. If pi
points to static memory, memory errors will result when the array is destroyed.
Description
Use mxSetImagData
to set the imaginary data of the specified mxArray
.
Most mxCreate*
functions optionally allocate heap space to hold imaginary data. If you tell an mxCreate*
function to allocate heap space (for example, by setting the ComplexFlag
to COMPLEX = 1
or by setting pi
to a nonzero value), then you do not ordinarily use mxSetImagData
to initialize the created mxArray
's imaginary elements. Rather, you call mxSetImagData
to replace the initial imaginary values with new ones.
Free the memory used by pi
by calling mxDestroyArray
to destroy the entire mxArray
.
mxSetImagData
is equivalent to using mxSetPi.
See Also
mxSetData
, mxGetImagData
, mxGetData
, mxSetPi
mxSetFieldByNumber | mxSetIr |
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