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static assignment of negative value to unsigned int [message #1444663]

Tue, 14 October 2014 11:24

Thomas Göttlich

Messages: 7
Registered: July 2009

Junior Member

Hi everybody,

I have a problem with CDT's internal builder: when I try to use std::is_unsigned<unsigned int> internal code analysis reports false, i.e. the unsigned type is reported as being signed.

Looking at the implentation (I'm using MinGW with GCC 4.8 ) it seems as if the following statement is the culprit:

 static_cast<bool>(_Tp(-1) < _Tp(0))

In my case _Tp would be unsigned int and thus _Tp( -1 ) should result in 0xFFFFFFFF (assuming unsigned int being 32-bit) and the statement should yield false.

When building the application it works as described but as I already stated internal code analysis reports false and thus reports errors when trying to resolve templated methods in the editor.

It's not a critical problem since compilation works just fine, but it's highly annoying when errors are being reported where there are no errors.

Is this a bug or do I miss something?

Btw, I'm using CDT 8.5 and Luna.

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