Our website uses cookies to enhance your browsing experience.
Accept
to the top
>
>
>
V6117. Possible overflow. The...
menu mobile close menu
Additional information
toggle menu Contents

V6117. Possible overflow. The expression will be evaluated before casting. Consider casting one of the operands instead.

Jul 30 2024

The analyzer has detected a suspicious type casting. The result of a binary operation is cast to a type with a large range.

Consider the example:

long multiply(int a, int b) {
    return (long)(a * b);
}

Such conversion is redundant. The 'int' type automatically expands to the 'long' type.

A similar casting pattern can be used to avoid overflow, but the pattern is incorrect. The multiplication of the 'int' type variables still leads to overflow. The meaningless multiplication result is explicitly expanded to the 'long' type.

To protect against overflow correctly, cast one of the arguments to the 'long' type. Here's the fixed code:

long multiply(int a, int b) {
    return (long)a * b;
}

This diagnostic is classified as:

close form

Fill out the form in 2 simple steps below:

Your contact information:

Step 1
Congratulations! This is your promo code!

Desired license type:

Step 2
Team license
Enterprise license
close form
Request our prices
New License
License Renewal
--Select currency--
USD
EUR
close form
Free PVS‑Studio license for Microsoft MVP specialists
close form
To get the licence for your open-source project, please fill out this form
close form
I want to join the test
* By clicking this button you agree to our Privacy Policy statement

close form
check circle
Message submitted.

Your message has been sent. We will email you at


If you do not see the email in your inbox, please check if it is filtered to one of the following folders:

  • Promotion
  • Updates
  • Spam