ostream

[Scott Zhong <sc...@roguewave.com>]

Hi Martin,

 

     I'm trying to understand ostream, where is the basic_ostream&
operator<< (short); (ostream, line 143) and basic_ostream& operator<<
(int); (ostream, line 149) function implemented? The closest match is:

Ostream, line 145: 

    basic_ostream& operator<< (unsigned short __val) {

        return *this << _RWSTD_STATIC_CAST (unsigned long, __val);

    }

And

Ostream, line 151:

    basic_ostream& operator<< (unsigned int __val) {

        return *this << _RWSTD_STATIC_CAST (unsigned long, __val);

    }

 

Thank you,

 

Yu (Scott) Zhong

Consulting Engineer

Rogue Wave Software, a Quovadxtm division

scottz@roguewave.com

ph: 303 545 3182

 

Re: ostream

[Martin Sebor <se...@roguewave.com>]

Scott Zhong wrote:
> Hi Martin,
> 
>  
> 
>      I'm trying to understand ostream, where is the basic_ostream&
> operator<< (short); (ostream, line 143) and basic_ostream& operator<<
> (int); (ostream, line 149) function implemented?

The definition is outside the class and starts on line 260. Is this
what you're looking for?

$ svn cat 
http://svn.apache.org/repos/asf/incubator/stdcxx/trunk/include/ostream | 
cat -n | head -275 | tail -17
    259
    260  template<class _CharT, class _Traits>
    261  inline basic_ostream<_CharT, _Traits>&
    262  basic_ostream<_CharT, _Traits>::operator<< (short __val)
    263  {
    264      const int __bf = this->flags () & this->basefield;
    265
    266      // make sure negative values format properly in non-decimal 
bases
    267      // i.e., -1 must format as hex "ffff" when (sizeof (short) 
== 2),
    268      // and not, for example, "ffffffff" in ILP32 (see lwg issue 
117)
    269      const long __lval = !__bf || this->dec == __bf ?
    270          long (__val) : long (_RWSTD_STATIC_CAST (unsigned 
short, __val));
    271
    272      return _RW::__rw_insert (*this, __lval);
    273  }
    274
    275

Martin