Re: [Boost-users] Errors in date_time module

From: Victor A. Wagner Jr. (vawjr_at_[hidden])
Date: 2005-02-20 02:19:13

At Friday 2005-02-18 04:13, you wrote:
>Hello!
>
>I tried to build the date_date libraries of Boost 1.31.0 with a gcc 2.95.2 
>compiler on a SuSE 7.0 Linux system. I discovered several problems:

problem 1: you're using an ancient compiler.
problem 2: you're using an out of date version of boost.
I recommend to boost that we not accept patches for the compiler. IMO we 
cannot afford the effort.

>1. Several header and source files try to include the sstream header file. 
>This header is not available for gcc 2.95.2. I solved this problem by 
>using #if defined(BOOST_NO_STRINGSTREAM) ... #else ... #endif 
>constructions to include the correct header file and use the correct class.
>
>2. In order to trigger the correct header file from error no. 1 the flag 
>BOOST_NO_STRINGSTREAM must be set. This should be done by the config 
>system (e.g. in boost/config/compiler/gcc.hpp).
>
>3. I tried to include the date_time header files into a source file that 
>also uses the Xerces library. This resulted in an error in file 
>boost/date_time/gregorian_calendar.ipp, function 
>gregorian_calendar_base<ymd_type_,date_int_type_>::day_number(const 
>ymd_type& ymd) because of two + operators the compiler can use ( the 
>buildin operator+(int, int) and second one from Xerces ). This error can 
>be solved by doing a static cast to unsigned int for the three classes 
>boost::gregorian::greg_year, greg_month and greg_day. The unsigned int 
>operator is defined for all three classes.
>
>I have created two patch files for boost versions 1.31.0 and 1.32.0:
>http://home.arcor-online.de/markus.petermann/boost_1_31_0.patch
>http://home.arcor-online.de/markus.petermann/boost_1_32_0.patch
>
>Maybe these corrections can be considered for future releases.
>
>Best regards,
>
>Markus Petermann
>
>
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>

Victor A. Wagner Jr.      http://rudbek.com
The five most dangerous words in the English language:
               "There oughta be a law"