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

** This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Request our prices
New License
License Renewal
--Select currency--
USD
EUR
GBP
RUB
* By clicking this button you agree to our Privacy Policy statement

** This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
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.

>
>
>
V545. Such conditional expression of 'i…
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
Additional information
Contents

V545. Such conditional expression of 'if' statement is incorrect for the HRESULT type value 'Foo'. The SUCCEEDED or FAILED macro should be used instead.

Nov. 27, 2010

The analyzer detected a potential error related to handling a variable of the HRESULT type.

HRESULT is a 32-bit value divided into three different fields: severity code, device code and error code. Such special constants as S_OK, E_FAIL, E_ABORT, etc. serve to handle HRESULT-values while the SUCCEEDED and FAILED macros are used to check HRESULT-values.

The V545 warning is generated if a variable of the HRESULT type is used in the 'if' operator as a bool-variable. Consider this sample:

HRESULT hr;
...
if (hr)
{
}

'HRESULT' and 'bool' are two types absolutely different in meaning. This sample of comparison is incorrect. The HRESULT type can have many states including 0L (S_OK), 0x80000002L (Ran out of memory), 0x80004005L (unspecified failure) and so on. Note that the code of the state S_OK is 0.

To check the HRESULT-value, we must use macro SUCCEEDED or FAILED defined in "WinError.h". These are correct versions of code:

if (FAILED(hr))
{
}
if (SUCCEEDED(hr))
{
}

References:

This diagnostic is classified as:

You can look at examples of errors detected by the V545 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