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.

>
>
>
V6009. Function receives an odd argumen…
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

V6009. Function receives an odd argument.

May 11 2018

The analyzer detected a possible error that has to do with passing a suspicious value as an argument to a function.

Consider the following examples:

Invalid index

String SomeMethod(String mask, char ch)
{
  String name = mask.substring(0, mask.indexOf(ch));
  ...
  return name;
}

IndexOf() returns the position of a specified argument. If the argument is not found, the function returns the value '-1'. And passing a negative index to function substring() results in an 'StringIndexOutOfBoundsException'.

The fixed version:

String SomeMethod(String mask, char ch)
{
  int pos = mask.indexOf(ch);
  if (pos < 0) return "error";

  String name = mask.substring(0, pos);
  ...
  return name;
}

Null argument

String[] SplitFunc(String s, String d) {
  ...
  if (d == null) {
    return s.split(d);
  }
  return null;
}

For several reasons an incorrect check was performed because of what an argument equal null is passed to the function split. In the result, the function will generate an exception 'NullPointerException'.

Correct variant:

String[] SplitFunc(String s, String d) {
  ...
  if (d != null) {
    return s.split(d);
  }
  return null;
}

Comparing with itself

...
return obj.equals(obj);

A fragment of code returns the result of comparing of an object with itself. Isn't it strange? Most likely, a comparing with another object has taken place:

...
return obj.equals(obj2);

This diagnostic is classified as:

You can look at examples of errors detected by the V6009 diagnostic.

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