Specify whether one of an S-function's input ports can be overwritten by one of its output ports
void ssSetInputPortOverWritable(SimStruct *S, int_T port, int_T isOverwritable)
SimStruct representing an S-Function block.
Index of the input port whose overwritability is being set.
Value specifying whether
port is overwritable.
to specify whether
port is overwritable by one
of the S-function's output ports. The Simulink® engine uses this
setting as one criterion in determining whether one of the output
ports of this S-function can share memory with
isOverwritable=1 and the other criteria are
satisfied, the engine allocates a common block of memory for the
input port and one of the S-function's output ports, thus reducing
simulation memory requirements. The default is
which means that
port cannot share memory with
any of the S-function's output ports.
If you set an input port to be overwritable, you must also specify
that the input port and at least one of the S-function's output ports
are reusable. Use