boost::date_time::posix_time and Intel Compiler 7.0?

From: Andre du Toit (adutoit_at_[hidden])
Date: 2003-05-20 15:24:21

Hi there.

I get the following error when I try to compile code using 
boost::date_time::posix_time:

c:\PROGRAM 
FILES\BOOST_1_30_0\boost/date_time/posix_time/time_formatters.hpp(43): 
error: more than one operator "<<" matches these operands:
            function "std::basic_ostream<_E, 
_Tr>::operator<<(std::_Bool={bool={bool}}) [with _E=char, 
_Tr=std::char_traits<char>]"
            function "std::basic_ostream<_E, _Tr>::operator<<(short) 
[with _E=char, _Tr=std::char_traits<char>]"
            function "std::basic_ostream<_E, _Tr>::operator<<(unsigned 
short) [with _E=char, _Tr=std::char_traits<char>]"
            function "std::basic_ostream<_E, _Tr>::operator<<(int) [with 
_E=char, _Tr=std::char_traits<char>]"
            function "std::basic_ostream<_E, _Tr>::operator<<(unsigned 
int) [with _E=char, _Tr=std::char_traits<char>]"
            function "std::basic_ostream<_E, _Tr>::operator<<(long) 
[with _E=char, _Tr=std::char_traits<char>]"
            function "std::basic_ostream<_E, _Tr>::operator<<(unsigned 
long) [with _E=char, _Tr=std::char_traits<char>]"
            function "std::basic_ostream<_E, _Tr>::operator<<(float) 
[with _E=char, _Tr=std::char_traits<char>]"
            function "std::basic_ostream<_E, _Tr>::operator<<(double) 
[with _E=char, _Tr=std::char_traits<char>]"
            function "std::basic_ostream<_E, _Tr>::operator<<(long 
double) [with _E=char, _Tr=std::char_traits<char>]"
            operand types are: std::basic_ostream<char, 
std::char_traits<char>> << 
boost::posix_time::time_duration::fractional_seconds_type
          << frac_sec;

Looking at the offending file (time_formatters.hpp, line 43 and 
vicinity) gives:

#if (defined(BOOST_MSVC) && (_MSC_VER <= 1200))  // 1200 == VC++ 6.0
    boost::int64_t frac_sec = td.fractional_seconds();
// JDG [7/6/02 VC++ compatibility]
    char buff[32];
    _i64toa(frac_sec, buff, 10);
#else
    time_duration::fractional_seconds_type frac_sec = 
td.fractional_seconds();
#endif

    if (frac_sec != 0) {
      ss  << "." << std::setw(time_duration::num_fractional_digits())
          << std::setfill('0')

// JDG [7/6/02 VC++ compatibility]
#if (defined(BOOST_MSVC) && (_MSC_VER <= 1200))  // 1200 == VC++ 6.0
        << buff;
#else
        << frac_sec;  //!!! Line 43 !!!//
#endif

It appears that there is not a streaming operator defined for the 
time_duration::fractional_seconds_type type.  Looking deeper into this 
issue was a bit of nightmare; since the offending type consists of 
numerous nested typdefs etc. etc.  

If anyone has a short and sweet answer to my essay of a question, I 
would appreciate it.  The obvious answer of "don't use the Intel 
compiler" will not suffice!  Saying that, when I switched from the Intel 
compiler to bad old MSVC6 I had not problems.  But our company's 
software requires the performance gain provided by the Intel compiler on 
Windows.

Another issue, I saw that during installation of Boost, it is possible 
using STLPort and MSVC6 together, but (for the reasons mentioned above), 
why not STLPort with the Intel compiler?

I did ask the same question some time before now, but no-one bothered to 
answer.

I would really appreciate any help in this regard!

Greetings,
Andre.