Pour obtenir une clé
d'essai remplissez le formulaire ci-dessous
Demandez des tariffs
Nouvelle licence
Renouvellement de licence
--Sélectionnez la devise--
USD
EUR
RUB
* En cliquant sur ce bouton, vous acceptez notre politique de confidentialité

Free PVS-Studio license for Microsoft MVP specialists
To get the licence for your open-source project, please fill out this form
** En cliquant sur ce bouton, vous acceptez notre politique de confidentialité.

I am interested to try it on the platforms:
** En cliquant sur ce bouton, vous acceptez notre politique de confidentialité.

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.

>
>
>
V3160. Argument of incorrect type is pa…
Analyzer diagnostics
General Analysis (C++)
General Analysis (C#)
General Analysis (Java)
Diagnosis of micro-optimizations (C++)
Diagnosis of 64-bit errors (Viva64, C++)
Customer specific requests (C++)
MISRA errors
AUTOSAR errors
OWASP errors (C#)
Problems related to code analyzer
Additional information
Contents

V3160. Argument of incorrect type is passed to the 'Enum.HasFlag' method.

30 Sep 2020

The analyzer has detected an issue: the type of the object calling the 'Enum.HasFlag' method is different from the type of the argument passed. Such a call will result in throwing an 'ArgumentException'.

Consider the following synthetic example:

bool DoSomethingIfAttachedToParent(TaskContinuationOptions options)
{
  if (options.HasFlag(TaskCreationOptions.AttachedToParent))
  {
    // ....
    return true;
  }
  else
  {
    return false;
  }
}

Note that in this example, 'HasFlag' is called on an object of type 'TaskContinuationOptions', whereas an object of type 'TaskCreationOptions' is passed as an argument. Executing this code will result in throwing an 'ArgumentException'.

An error like that may be difficult to notice because of the similar names of the enumerations and because the 'AttachedToParent' element is found in both types.

The error can be fixed by changing either the type of the argument or the type of the calling object:

bool DoSomethingIfAttachedToParent(TaskContinuationOptions options)
{
  if (options.HasFlag(TaskContinuationOptions.AttachedToParent))
  {
    // ....
    return true;
  }
  else
  {
    return false;
  }
}

This diagnostic is classified as:

Unicorn with delicious cookie
Nous utilisons des cookies pour améliorer votre expérience de navigation. En savoir plus
Accepter