Writing S-Functions

mdlSetInputPortComplexSignal

Set the numeric types (real, complex, or inherited) of the signals accepted by an input port.

Syntax

• void mdlSetInputPortDataType(SimStruct *S, int_T port, CSignal_T 
  csig)
  

Arguments

S
   SimStruct representing an S-Function block.

port
   Index of a port.

csig
   Numeric type of signal.

Description

Simulink calls this routine to set the input port signal type. The S-function must check whether the specified signal type is a valid type for the specified port. If it is valid, the S-function must set the signal type of the specified input port. Otherwise, it must report an error using ssSetErrorStatus. The S-function can also set the signal types of other input and output ports with unknown signal types. Simulink reports an error if the S-function changes the signal type of a port whose signal type is known.

If the S-function does not implement this routine, Simulink assumes that the S-function accepts a real or complex signal and sets the input port signal type to the specified value.

Languages

C

See Also

ssSetInputPortComplexSignal, ssSetErrorStatus

mdlSetDefaultPortDimensionInfo

mdlSetInputPortDataType