Writing S-Functions

ssGetInputPortRealSignalPtrs

Get pointers to signals of type double connected to an input port

Syntax

• InputRealPtrsType ssGetInputPortRealSignalPtrs(SimStruct *S, int_T 
  port)
  

Arguments

S
   SimStruct representing an S-Function block.

port
   Index of port whose signal is required.

Description

Returns pointers to the elements of a signal of type double connected to port. The input port index starts at 0 and ends at the number of input ports minus 1. This macro returns a pointer to an array of pointers to the real_T input signal elements. The length of the array of pointers is equal to the width of the input port.

Languages

C

Example

The following example reads all input port signals.

• int_T i,j;
  int_T nInputPorts = ssGetNumInputPorts(S);
  for (i = 0; i < nInputPorts; i++) {
    InputRealPtrsType uPtrs = 
                  ssGetInputPortRealSignalPtrs(S,i);
    int_T nu = ssGetInputPortWidth(S,i);
    for (j = 0; j < nu; j++) {
      SomeFunctionToUseInputSignalElement(*uPtrs                 
                          [j]);
    }
  }
  

See Also

ssGetInputPortWidth, ssGetInputPortDataType, ssGetInputPortSignalPtrs

ssGetInputPortRealSignal

ssGetInputPortRequiredContiguous

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