Return fractional slope of registered data type
extern double ssGetDataTypeFracSlope(SimStruct *S, DTypeId dataTypeId)
Fixed-point numbers can be represented as
real-world value = (slope × integer) + bias,
where the slope can be expressed as
slope = fractional slope × 2exponent.
This function returns the fractional slope of a registered fixed-point data type. To get the total slope, use ssGetDataTypeTotalSlope:
For power-of-two scaling, the fractional slope is 1.
If the data type has trivial scaling, including data types single and double, the fractional slope is 1.
If the registered data type is ScaledDouble, the fractional slope returned is that of the nonoverridden data type.
This function errors out when ssGetDataTypeIsFxpFltApiCompat returns FALSE.
To use this function, you must include fixedpoint.h and fixedpoint.c. For more information, see Structure of the S-Function.