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CodeSonar® 9.2p0 CONFIDENTIAL CodeSecure Inc
C and C++

MATH.DOMAIN : Floating Point Domain Error

Summary

An attempt to call a floating point function on a value that is outside its domain, when no other MATH.DOMAIN.* warning class is appropriate.

Properties

Class Name Floating Point Domain Error
Significance style
Mnemonic MATH.DOMAIN
Categories
MisraC2025 MisraC2025:D.4.1 Run-time failures shall be minimized
  MisraC2025:D.4.11 The validity of values passed to library functions shall be checked
MisraC2023 MisraC2023:D.4.1 Run-time failures shall be minimized
  MisraC2023:D.4.11 The validity of values passed to library functions shall be checked
Misra2012 Misra2012:D.4.1 Run-time failures shall be minimized
  Misra2012:D.4.11 The validity of values passed to library functions shall be checked
Misra2004 Misra2004:20.3 The validity of values passed to library functions shall be checked
AUTOSARC++14 AUTOSARC++14:A0-4-4 Range, domain and pole errors shall be checked when using math functions.
CWE CWE:628 Function Call with Incorrectly Specified Arguments
  CWE:687 Function Call With Incorrectly Specified Argument Value
  CWE:688 Function Call With Incorrect Variable or Reference as Argument
CERT-C CERT-C:FLP32-C Prevent or detect domain and range errors in math functions
OWASP-2021 OWASP-2021:A4 Insecure design
OWASP-2025 OWASP-2025:A06 Insecure Design
Availability Available for C and C++.
Enabling Checks for this warning class are enabled by default. To disable them, add the following WARNING_FILTER rule to the project configuration file. 
WARNING_FILTER += discard class="Floating Point Domain Error"

Triggers

CodeSonar ships with library models that allow it to recognize functions such as libm yn() that are not applicable to all floating point numbers. If one of these functions is called with a floating point argument that is outside its domain, a warning will be issued.

If you have created a custom library model for some function f() in terms of one of these existing models, calls to f() will also be capable of triggering Floating Point Domain Error warnings.

Example 

#include <math.h>

double call_yn(double ind){
    double a = yn(1,5);                     /* ok */
    double b = yn(-1,5);  /* 'Floating Point Domain Error' warning issued here */
    double c = yn(ind,5); /* EVIDENCED ONLY: 'Floating Point Domain Error' warning issued here
                           * if CodeSonar has evidence that call_yn() is called on a value ≤-1. */
    return a+b+c;
}

Relevant Configuration File Parameters

The following configuration file parameters affect checks for this warning class.

 

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