To get a trial key
fill out the form below
Team License (a basic version)
Enterprise License (an extended version)
* By clicking this button you agree to our Privacy Policy statement

Request our prices
New License
License Renewal
--Select currency--
USD
EUR
GBP
RUB
* By clicking this button you agree to our Privacy Policy statement

Free PVS-Studio license for Microsoft MVP specialists
* By clicking this button you agree to our Privacy Policy statement

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

I am interested to try it on the platforms:
* By clicking this button you agree to our Privacy Policy statement

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.

>
>
>
V643. Suspicious pointer arithmetic. Va…
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
OWASP errors (C#)
Additional information
Contents

V643. Suspicious pointer arithmetic. Value of 'char' type is added to a string pointer.

Aug 27 2012

The analyzer has detected a potential error: incorrect addition of a character constant to a string literal pointer.

This error usually occurs when the programmer tries to unite a string literal with a character.

Consider a simple example of incorrect code:

std::string S = "abcd" + 'x';

The programmer expected to get the "abcdx" string, but actually value 120 will be added to the pointer to the "abcd" string. This will surely lead to the string literal overrun. To prevent this bug you should avoid such arithmetic operations over string and character variables.

This is the correct code:

std::string S = std::string("abcd") + 'x';

This diagnostic is classified as:

You can look at examples of errors detected by the V643 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