BADFUNC.FLOAT.GAMMA : Use of gamma

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CodeSonar^® 9.2p0

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CodeSecure Inc

C and C++

BADFUNC.FLOAT.GAMMA : Use of gamma

Summary

A use of any of the following, which are not portable: they may implement tgamma() or lgamma(), depending on the system.
Use tgamma() or lgamma() instead.

gamma()
gammaf()
gammal()
_gamma()
_gammaf()
_gammal()
__gamma()
__gammaf()
__gammal()

Properties

Class Name

Use of gamma

Significance

reliability

Mnemonic

BADFUNC.FLOAT.GAMMA

Categories

CWE	CWE:242	Use of Inherently Dangerous Function
	CWE:474	Use of Function with Inconsistent Implementations
	CWE:477	Use of Obsolete Function
CERT-C	CERT-C:MSC24-C	Do not use deprecated or obsolescent functions
OWASP-2017	OWASP-2017:A9	Using components with known vulnerabilities
OWASP-2021	OWASP-2021:A4	Insecure design
	OWASP-2021:A6	Vulnerable and outdated components
OWASP-2025	OWASP-2025:A03	Software Supply Chain Failures
	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="Use of gamma"

Example

#include <math.h>

double mygamma(double d){
  return gamma(d);  /* "Use of gamma" warning issued here
}

Relevant Configuration File Parameters

This class is implemented using a BAD_FUNCTION_* rule set in the general template configuration file.

To include an additional function or set of functions in the checks for this class, create a new set of BAD_FUNCTION_* rules in which the BAD_FUNCTION_REGEX setting matches the function or set of functions you want to check and the remaining rules match those in the other sets for this class.
To remove a function or set of functions from the checks for this class, edit the configuration file to comment out the corresponding set of BAD_FUNCTION_* rules.

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

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