ssGetAbsTol (Writing S-Functions)

Writing S-Functions

ssGetAbsTol

Get the absolute tolerances used by a model's variable-step solver.

Syntax

```
real_T *ssGetAbsTol(SimStruct *S)
```

Arguments

S
SimStruct representing an S-Function block.

Description

Use in mdlStart to get the absolute tolerances used by the variable-step solver for this simulation. Returns a pointer to an array that contains the tolerance for each continuous state.

Note Absolute tolerances are not allocated for fixed-step solvers. Therefore, you should not invoke this macro until you have verified that the simulation is using a variable-step solver, using ssIsVariableStepSolver.

Languages

C, C++

Example

{
    int isVarSolver = ssIsVariableStepSolver(S);

    if (isVarSolver) {
        real_T *absTol = ssGetAbsTol(S);
        int    nCStates = ssGetNumContStates(S);

        absTol[0] = whatever_value;
        ...
        absTol[nCStates-1] = whatever_value;
    }
}

ssCallSystemWithTid ssGetBlockReduction