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Tool

Version

Checker

Description

Compass/ROSE

  

Can detect some violations of this recommendation. In particular, it flags switch statements that do not have a default clause. ROSE should detect "fake switches" as well (that is, a chain of if statements each checking the value of the same variable). These if statements should always end in an else clause, or they should mathematically cover every possibility. For instance, consider the following:

  if (x > 0) {
	  /* ... */
  } else if (x < 0) {
    /* ... */
  } else if (x == 0) {
    /* ... */
  }
GCC
Include Page
GCC_V
GCC_V
 

Can detect some violations of this recommendation when the -Wswitch and -Wswitch-default flags are used

 Klocwork 
Include Page
Klocwork_V
Klocwork_V
 LA_UNUSED 

LDRA tool suite

Include Page
LDRA_V
LDRA_V

12 S

Fully implemented
PRQA QA-C
Include Page
PRQA QA-C_v
PRQA QA-C_v

0597
1460
1470
1472

2000
2002
2004

Fully implemented
SonarQube Plugin
Include Page
SonarQube_V
SonarQube_V

ElseIfWithoutElse

SwitchWithoutDefault

Fully implemented

Related Vulnerabilities

Search for vulnerabilities resulting from the violation of this rule on the CERT website.

Related Guidelines

CERT C++ Secure Coding StandardMSC01-CPP. Strive for logical completeness
ISO/IEC TS 17961Use of an implied default in a switch statement [swtchdflt]
ISO/IEC TR 24772Switch Statements and Static Analysis [CLL]

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