To get a trial key
fill out the form below
Team License (standard version)
Enterprise License (extended version)
* By clicking this button you agree to our Privacy Policy statement

** This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Request our prices
New License
License Renewal
--Select currency--
USD
EUR
GBP
RUB
* By clicking this button you agree to our Privacy Policy statement

** This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
To get the licence for your open-source project, please fill out this form
* By clicking this button you agree to our Privacy Policy statement

** This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
To get the licence for your open-source project, please fill out this form
* By clicking this button you agree to our Privacy Policy statement

** This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
I am interested to try it on the platforms:
* By clicking this button you agree to our Privacy Policy statement

** This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Message submitted.

Your message has been sent. We will email you at


If you haven't received our response, please do the following:
check your Spam/Junk folder and click the "Not Spam" button for our message.
This way, you won't miss messages from our team in the future.

>
>
>
V2585. MISRA. Casts between a void poin…
Analyzer Diagnostics
General Analysis (C++)
General Analysis (C#)
General Analysis (Java)
Diagnosis of micro-optimizations (C++)
Diagnosis of 64-bit errors (Viva64, C++)
MISRA errors
AUTOSAR errors
Additional information
Contents

V2585. MISRA. Casts between a void pointer and an arithmetic type should not be performed.

Jun 09 2021

This diagnostic rule is based on the MISRA (Motor Industry Software Reliability Association) software development guide.

This rule only applies to programs written in C.

A cast between a variable or an arithmetic type literal and 'void *' may cause undefined (for floating-point numbers) or platform-specific behavior (for integer types).

Consider the first synthetic example:

void* foo(void)
{
  double pi = 3.14;
  return pi;
}

In this case, the double 'pi' variable is implicitly cast to 'void *'. Such code will lead to undefined behavior.

Take a look at the second synthetic example:

void bar(void)
{
  int a = 5;
  void* b = (void*)a;
}

Here the 'int' variable is explicitly cast to the 'void *' pointer. Further dereferencing of such a pointer may lead to segfault.

This diagnostic is classified as:

  • MISRA-C-11.6
  • MISRA-C-11.7
This website uses cookies and other technology to provide you a more personalized experience. By continuing the view of our web-pages you accept the terms of using these files. If you don't want your personal data to be processed, please, leave this site.
Learn More →
Accept