Re: [Boost-users] [boost] compilation warnings questions by a newbee

Subject: Re: [Boost-users] [boost] compilation warnings questions by a newbee
From: Vicente J. Botet Escriba (vicente.botet_at_[hidden])
Date: 2011-12-08 18:24:27

Le 09/12/11 00:11, Marshall Clow a écrit :
> On Dec 8, 2011, at 2:58 PM, Rai, Neeraj wrote:
>
>> Hi,
>> I am writing my first boost program and having trouble with the 
>> compiler warning against boost 1.44.0.
>> Is there any way to get rid of those warnings so I can focus on real 
>> warnings in my code ?
>> The gist of warning is :
>> boost_1_44_0/include/boost/mpl/aux_/integral_wrapper.hpp:73:96: 
>> warning: the result of the conversion is unspecified because 
>> '-0x00000000000000001' is outside the range of type 
>> 'boost::numeric::udt_builtin_mixture_enum' [-Wconversion]
>> Any help or pointers are appreciated.
>> Neeraj
>> ====== The following program is a cut down version of my code, just 
>> declares sregex
>> #include <iostream>
>> #include <boost/xpressive/xpressive.hpp>
>> int main (int _argc, const char** _argv)
>> {
>>   std::cout << "argc=" << _argc << " argv=" << _argv << std::endl;
>>   using namespace boost::xpressive;
>>   std::string keyword("");
>>   sregex const re(sregex::compile(keyword, sregex::icase));
>> }
>
> Just tried this with both gcc 4.2.1 and clang 3.0 using the current 
> Boost (1.48), and it worked fine.
> No warnings, even with -Wall
>
The PO is using -Wconversion

Best,
Vicente