xstring_insert.h File Reference

#include <ostream>

Go to the source code of this file.

Macros
#define	_XSTRING_INSERT_H

Functions
template<class _Elem , class _Traits , class _SizeT >
_STD_BEGIN basic_ostream< _Elem, _Traits > &	_Insert_string (basic_ostream< _Elem, _Traits > &_Ostr, const _Elem *const _Data, const _SizeT _Size)

Macro Definition Documentation

#define _XSTRING_INSERT_H

Function Documentation

template<class _Elem , class _Traits , class _SizeT >

_STD_BEGIN basic_ostream<_Elem, _Traits>& _Insert_string ( basic_ostream< _Elem, _Traits > &  _Ostr, const _Elem *const  _Data, const _SizeT  _Size  )

inline

    {   // insert a character-type sequence into _Ostr as if through a basic_string copy
    ios_base::iostate _State = ios_base::goodbit;
    _SizeT _Pad = _Ostr.width() <= 0 || static_cast<_SizeT>(_Ostr.width()) <= _Size
        ? 0 : static_cast<_SizeT>(_Ostr.width()) - _Size;
    const typename basic_ostream<_Elem, _Traits>::sentry _Ok(_Ostr);

    if (!_Ok)
        _State |= ios_base::badbit;
    else
        {   // state okay, insert characters
        _TRY_IO_BEGIN
        if ((_Ostr.flags() & ios_base::adjustfield) != ios_base::left)
            for (; 0 < _Pad; --_Pad)    // pad on left
                if (_Traits::eq_int_type(_Traits::eof(),
                    _Ostr.rdbuf()->sputc(_Ostr.fill())))
                    {   // insertion failed, quit
                    _State |= ios_base::badbit;
                    break;
                    }

        if (_State == ios_base::goodbit
            && _Ostr.rdbuf()->sputn(_Data, (streamsize)_Size)
                != (streamsize)_Size)
                _State |= ios_base::badbit;
        else
            for (; 0 < _Pad; --_Pad)    // pad on right
                if (_Traits::eq_int_type(_Traits::eof(),
                    _Ostr.rdbuf()->sputc(_Ostr.fill())))
                    {   // insertion failed, quit
                    _State |= ios_base::badbit;
                    break;
                    }
        _Ostr.width(0);
        _CATCH_IO_(_Ostr)
        }

    _Ostr.setstate(_State);
    return (_Ostr);
    }