Writing S-Functions

ssSetOutputPortOverwritesInputPort

Specify whether an output port can share its memory buffer with an input port.

Syntax

• ssSetOutputPortOverwritesInputPort(SimStruct *S, outIdx, inIdx)
  

Arguments

S
   SimStruct representing an S-Function block.

outIdx
   Index of the output port

inIdx
   Index of the input port

Description

The argument inIdx tells Simulink which input port of S can share its memory with the output port specified by outIdx. inIdx can have the following values:

• Index of an input port of S that can share its memory with the specified output port.

• Use must use ssSetInputPortOverWritable to tell Simulink that the specified input port can share its memory with an output port.

• OVERWRITE_INPUT_ALL
• The output port can share its memory with any input port.
• OVERWRITE_INPUT_NONE

• The output port must have its own memory buffer.

Language

C

See Also

ssSetInputPortOverWritable

ssSetOutputPortOptimOpts

ssSetOutputPortSampleTime

© 1994-2005 The MathWorks, Inc.