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.
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.

>
>
>
V657. It's odd that this function alway…
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

V657. It's odd that this function always returns one and the same value of NN.

Jan. 22, 2013

The analyzer has detected a strange function: it doesn't have any state and doesn't change any global variables. At the same time, it has several return points returning one and the same numerical value.

This code is very odd and might signal a possible error. The function is most likely intended to return different values.

Consider the following simple example:

int Foo(int a)
{
  if (a == 33)
    return 1;
  return 1;
}

This code contains an error. Let's change one of the returned values to fix it. You can usually identify the necessary returned values only when you know the operation logic of the whole application in general

This is the fixed code:

int Foo(int a)
{
  if (a == 33)
    return 1;
  return 2;
}

If the code is correct, you may get rid of the false positive using the "//-V657" comment.

This diagnostic is classified as:

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