Our website uses cookies to enhance your browsing experience.
Accept
to the top
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
** By clicking this button you agree to our Privacy Policy statement
close form
Request our prices
New License
License Renewal
--Select currency--
USD
EUR
* By clicking this button you agree to our Privacy Policy statement

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

close form
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

close form
I am interested to try it on the platforms:
* 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 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.

>
>
>
V650. Type casting is used 2 times in a…
menu mobile close menu
Analyzer diagnostics
General Analysis (C++)
General Analysis (C#)
General Analysis (Java)
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
toggle menu Contents

V650. Type casting is used 2 times in a row. The '+' operation is executed. Probably meant: (T1)((T2)a + b).

Nov 09 2012

The analyzer has detected a potential error in an expression with address arithmetic. Addition/subtraction operations are performed over an expression which is a double type conversion. It may be a misprint: the programmer forgot to put the first type conversion and addition operation into brackets.

Consider an example of incorrect code:

ptr = (int *)(char *)p + offset_in_bytes;

The programmer was most likely expecting the 'p' variable to be cast to the 'char *' type, the shift in bytes added to it after that. Then the new pointer was expected to be cast to the 'int *' type.

But the missing parentheses turn this expression into a double type conversion and addition of the shift to the 'int'-pointer. The result will be different from the expected one. Such an error might well cause an array overrun.

This is the fixed code:

ptr = (int *)((char *)p + offset_in_bytes);

This diagnostic is classified as:

You can look at examples of errors detected by the V650 diagnostic.