ssFxpGetU32BitRegionCompliant - Determine whether S-function is compliant with the U32 bit region interface

Syntax

extern ssFxpSGetU32BitRegionCompliant(SimStruct *S,
                            int *result)

Arguments

S

SimStruct representing an S-function block.

result

• 1 if S-function calls ssFxpSetU32BitRegionCompliant to declare compliance with memory footprint for fixed-point data types with 33 or more bits

• 0 if S-function does not call ssFxpSetU32BitRegionCompliant

Description

This function checks whether the S-function calls ssFxpSetU32BitRegionCompliant to declare compliance with the memory footprint for fixed-point data types with 33 or more bits. Before calling any other Simulink Fixed Point API function on data with 33 or more bits, you must call ssFxpSetU32BitRegionCompliant as follows:

ssFxpSetU32BitRegionCompliant(S,1);

Note   The Simulink Fixed Point software assumes that S-functions that use fixed-point data types with 33 or more bits without calling ssFxpSetU32BitRegionCompliant are using the obsolete memory footprint that existed until R2007b. Either redesign these S-functions or isolate them using the library fixpt_legacy_sfun_support.mdl.

.

Requirement

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

Languages

C

See Also

ssFxpSetU32BitRegionCompliant

Related Products & Applications

• Simulink
• Control Design
• Signal Processing & Communications
• Model-Based Design
• Physical Modeling
• Verification & Validation

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