Determine whether the simulation time is equal to the start time.
boolean_T ssIsFirstInitCond(SimStruct *S)
SimStruct representing an S-Function block.
The Boolean value
true if the current simulation
time is equal to the simulation start time. Otherwise, returns
If this S-function resides in an enabled subsystem configured
to reset states, and if the enabled system is enabled at the start
mdlInitializeConditions to determine
if the callback is being invoked at the start of the simulation.