Versions Compared

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

Code Block
bgColor#ccccFF
langc
#include <stdio.h>
void func(void) {
  int val = 0; 
  /* ... */ 
  ++val;
  size_t align = _Alignof(int[val]);
  printf("%zu, %d\n", align, val);
  /* ... */
}

...

Tool

Version

Checker

Description

Astrée
Include Page
Astrée_V
Astrée_V

alignof-side-effect
generic-selection-side-effect
sizeof

Partially checkedFully checked
Axivion Bauhaus Suite

Include Page
Axivion Bauhaus Suite_V
Axivion Bauhaus Suite_V

CertC-EXP44
Clang
Include Page
Clang_V
Clang_V
-Wunevaluated-expressionCan diagnose some instance of this rule, but not all (such as the _Alignof NCCE).
CodeSonar
Include Page
CodeSonar_V
CodeSonar_V
LANG.STRUCT.SE.SIZEOF
LANG.STRUCT.SE.CGEN
Side effects in sizeof
Side Effects in C Generic Selection
Compass/ROSE




Coverity
Include Page
Coverity_V
Coverity_V

MISRA C 2004 Rule 12.3

Partially implemented

ECLAIR

Include Page
ECLAIR_V
ECLAIR_V

CC2.EXP06

Fully implemented

Helix QAC

Include Page
Helix QAC_V
Helix QAC_V

C3307
Klocwork
Include Page
Klocwork_V
Klocwork_V
MISRA.SIZEOF.SIDE_EFFECT
LDRA tool suite
Include Page
LDRA_V
LDRA_V

54 S, 653 S

Fully implemented

Parasoft C/C++test
Include Page
Parasoft_V
Parasoft_V
MISRA2004-12_3_b, MISRA2004-12_3_cFully implemented

Polyspace Bug Finder

R2018aSide effect of expression ignoredsizeof, _Alignof, or _Generic operates on expression with side effect

CERT_C-EXP44-a
CERT_C-EXP44-b

Object designated by a volatile lvalue should not be accessed in the operand of the sizeof operator
The function call that causes the side effect shall not be the operand of the sizeof operator

PC-lint Plus

Include Page
PC-lint Plus_V
PC-lint Plus_V

9006

Partially supported: reports use of sizeof with an expression that would have side effects

Polyspace Bug Finder

Include Page
Polyspace Bug Finder_V
Polyspace Bug Finder_V

CERT C: Rule EXP44-C


Checks for situations when side effects of specified expressions are ignored (rule fully covered)

PRQA QA-C
Include Page
PRQA QA-C_vPRQA QA-C_v3307Fully implemented

PVS-Studio

Include Page
PVS-Studio_V
PVS-Studio_V

V568
RuleChecker
Include Page
RuleChecker_V
RuleChecker_V

alignof-side-effect
generic-selection-side-effect
sizeof

Partially Fully checked

Related Vulnerabilities

...