[cfe-dev] C++ analysis vs C analysis

[Ted Kremenek]

It's not worth filing C++-specific bugs against the analyzer at this point.  We should internally vet it first by running it over a ton of code, catching crashes, etc.

On Feb 21, 2011, at 1:30 PM, Jean-Daniel Dupas wrote:

> I was waiting that the C++ analyzer be a little more mature, but if you tell it is worth filling bugs now, be sure I will do it.
> 
> Le 21 févr. 2011 à 20:11, Argyrios Kyrtzidis a écrit :
> 
>> It'd be a good idea to file bugs for the false positives when analyzing C++ code so we can keep track of them.
>> 
>> -Argiris
>> 
>> On Feb 21, 2011, at 8:14 AM, Jean Baptiste LE STANG wrote:
>> 
>>> OK, thanks. At least a result with false positive is better than no
>>> result at all. I'm going to try with a recent SVN version.
>>> 
>>> On Mon, Feb 21, 2011 at 5:06 PM, Jean-Daniel Dupas
>>> <devlists at shadowlab.org> wrote:
>>>> 
>>>> Le 21 févr. 2011 à 16:57, Jean Baptiste LE STANG a écrit :
>>>> 
>>>>> Hello,
>>>>> 
>>>>> I'm trying to use LLVM & scan-build (clang 2.8, checker-255) to
>>>>> achieve a static analysis of  a C++ program to detect potential bugs.
>>>>> Before doing it on my real program, I've been trying to make it work
>>>>> on a simple program :
>>>>> 
>>>>> int main(int argc, char * argv[] , char * arge[]){
>>>>>     int i;
>>>>>     if (i<5){
>>>>>             i = 50;
>>>>>     }
>>>>>     return i;
>>>>> }
>>>>> 
>>>>> First case as a C program : scan-build -k -V -v gcc main.c
>>>>> 
>>>>> ANALYZE: main.c main
>>>>> main.c:4:14: warning: The left operand of '<' is a garbage value
>>>>>     if (i<5){
>>>>> 
>>>>> Second case as a C++ program :  scan-build -k -V -v g++ main.cpp and
>>>>> i'm missing the previous error detected in scenario 1
>>>> 
>>>> The static analyzer does not support C++ yet.
>>>> The svn version starts to support it but it is not ready to use AFAIK.
>>>> I tried it last week, and it reported a lot of false positives.
>>>> 
>>>> -- Jean-Daniel
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>> 
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>> 
> 
> -- Jean-Daniel
> 
> 
> 
> 
> 
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