ssGetDataTypeFxpIsSigned

Determine whether fixed-point registered data type is signed or unsigned

Syntax

extern int ssGetDataTypeFxpIsSigned (SimStruct *S, DTypeId
                                     dataTypeId)

Arguments

S

SimStruct representing an S-function block.

dataTypeId

Data type ID of the registered fixed-point data type for which you want to know whether it is signed.

Description

This function determines whether a registered fixed-point data type is signed:

  • If the fixed-point data type is signed, the function returns TRUE. If the fixed-point data type is unsigned, the function returns FALSE.

  • If the registered data type is ScaledDouble, the function returns TRUE or FALSE according to the signedness of the nonoverridden data type.

  • If the registered data type is single or double, this function errors out.

This function errors out when ssGetDataTypeIsFxpFltApiCompat returns FALSE.

Requirement

To use this function, you must include fixedpoint.h and fixedpoint.c. For more information, see Structure of the S-Function.

Languages

C

TLC Functions

FixPt_DataTypeFxpIsSigned

Version History

Introduced before R2006a