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.

>
>
>
V1064. The left operand of integer divi…
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

V1064. The left operand of integer division is less than the right one. The result will always be zero.

Sep 14 2020

The analyzer has detected a suspicious expression that contains an integer division operation, with the left operand always being less than the right operand. Such an expression will always evaluate to zero.

Consider the following example:

if ( nTotal > 30 && pBadSource->m_nNegativeVotes / nTotal > 2/3 )
{
  ....
}

Since both literals '2' and '3' are of integer type, the quotient will also be integer and, therefore, zero. It means the expression above is equivalent to the following one:

if ( nTotal > 30 && pBadSource->m_nNegativeVotes / nTotal > 0 )
{
  ....
}

A correct way to fix this error is to explicitly cast one of the operands to a floating-point type, for example:

if ( nTotal > 30 && pBadSource->m_nNegativeVotes / nTotal >
                            static_cast<float>(2)/3 )
{
  ....
}

Or:

if ( nTotal > 30 && pBadSource->m_nNegativeVotes / nTotal > 2.0f/3 )
{
  ....
}

This diagnostic is classified as:

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