Determine whether registered data type is supported by API for user-written fixed-point S-functions
extern int ssGetDataTypeIsFxpFltApiCompat(SimStruct *S, DTypeId dataTypeId)
This function determines whether the registered data type is supported by the API for user-written fixed-point S-functions. The supported data types are all standard Simulink® data types, all fixed-point data types, and data type override data types.
To use this function, you must include fixedpoint.h and fixedpoint.c. For more information, see Structure of the S-Function.