ssGetInputPortRealSignal (Writing S-Functions)

Get the address of a real, contiguous signal entering an input port.

Syntax

const real_T *ssGetInputPortRealSignal(SimStruct *S, inputPortIdx)

Arguments
S
SimStruct representing an S-function block.

inputPortIdx
Index of port whose sample time is required.

Description

Returns the address of a real signal on the specified input port. A method should use this macro only if the input signal is known to be real and mdlIntializeSizes has specified that the elements of the input signal be contiguous, using ssSetInputPortRequiredContiguous.

Languages

C, C++

Example

The following code demonstrates the use of ssGetInputPortRealSignal.

nInputPorts = ssGetNumInputPorts(S);
    for (i = 0; i < nInputPorts; i++) {
        int_T nu = ssGetInputPortWidth(S,i);

    if ( ssGetInputPortRequiredContiguous(S,i) ) {
  
        const real_T *u = ssGetInputPortRealSignal(S,i);
        UseInputVectorInSomeFunction(u, nu);

        } else {

        InputPtrsType u  = ssGetInputPortSignalPtrs(S,i);
            for (j = 0; j < nu; j++) {
            UseInputInSomeFunction(*u[j]);
            }
        }
    }

ssGetInputPortOverWritable ssGetInputPortRealSignalPtrs