ssGetOutputPortRealSignal - Get a pointer to an output signal of type double (real_T)
Syntax
real_T *ssGetOutputPortRealSignal(SimStruct *S, int_T port)
Arguments
- S
SimStruct representing an S-Function block.
- port
Index of an output port.
Returns
A contiguous real_T vector of length equal
to the width of the output port.
Description
Use in any simulation loop routine, mdlInitializeConditions,
or mdlStart to access an output port signal where
the output port index starts at 0 and must be less than the number
of output ports.
Note
You cannot use ssGetOutputPortRealSignal anywhere
except in mdlOutputs if you have specified that
the output ports are reusable using ssSetOutputPortOptimOpts.
For example, if the outputs have been specified as reusable with the SS_REUSABLE_AND_LOCAL flag,
the mdlUpdate routine errors out when it tries
to access output memory that is unavailable. |
Languages
C, C++
Example
To write to all output ports, you would use
int_T i,j;
int_T nOutputPorts = ssGetNumOutputPorts(S);
for (i = 0; i < nOutputPorts; i++) {
real_T *y = ssGetOutputPortRealSignal(S,i);
int_T ny = ssGetOutputPortWidth(S,i);
for (j = 0; j < ny; j++) {
y[j] = SomeFunctionToFillInOutput();
}
}
See the S-function matlabroot/toolbox/simulink/simdemos/simfeatures/src/sfun_atol.c used
in sfcndemo_sfun_atol.mdl for
a complete example that uses this function.
See Also
ssGetInputPortRealSignalPtrs
 | ssGetOutputPortOptimOpts | | ssGetOutputPortSampleTime |  |
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