BADFUNC.FLOAT.GAMMA : Use of gamma

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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()

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

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"

#include <math.h>

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

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.

BADFUNC.FLOAT.GAMMA : Use of gamma

Summary

Properties

Example

Relevant Configuration File Parameters