Our website uses cookies to enhance your browsing experience.
Accept
to the top
>
>
>
V767. Suspicious access to element...
menu mobile close menu
Additional information
toggle menu Contents

V767. Suspicious access to element by a constant index inside a loop.

Aug 03 2016

The analyzer detected a possible error that has to do with accessing an element of an array or container by the same constant index at each iteration of a 'for' loop.

Consider the following example:

void Foo(vector<size_t> &vect)
{
  for (size_t i = 0; i < vect.size(); i++)
    vect[0] *= 2;
}

The programmer intended this function to change all the values in a vector but made a typo that causes the vector elements to be accessed using the constant value 0 instead of the loop counter 'i'. It will result in changing only one value (unless the vector is empty).

To fix this error, we need to rewrite the line where the container's elements are accessed:

void Foo(vector<size_t> &vect)
{
  for (size_t i = 0; i < vect.size(); i++)
    vect[i] *= 2;
}

You can look at examples of errors detected by the V767 diagnostic.

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