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Description:
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Last confirmed: 2004-03-26 15:25
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Opened: 2004-01-07 11:13
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Although enc_filebuf now compiles (PR 13189), it's not possible to do any
actual IO with it.
The problem seems to be that basic_filebuf assumes that state_type is
assignable, but __enc_traits isn't. Although operator= is defined for
__enc_traits, t = u doesn't result in t being equivalent to u, since
it doesn't copy the iconv_t members (_M_*_desc):
// Need assignment operator as well.
__enc_traits&
operator=(const __enc_traits& __obj)
{
strncpy(_M_int_enc, __obj._M_int_enc, _S_max_size);
strncpy(_M_ext_enc, __obj._M_ext_enc, _S_max_size);
_M_in_desc = 0;
_M_out_desc = 0;
_M_ext_bom = __obj._M_ext_bom;
_M_int_bom = __obj._M_int_bom;
return *this;
}
(Note that there is a memory leak here if _M_in_desc or _M_out_desc are
non-null.)
Fixed.
2004-03-27 Benjamin Kosnik <bkoz@redhat.com>
libstdc++ PR/13598
* config/locale/ieee_1003.1-2001/codecvt_specializations.h
(__enc_traits::_M_destroy): New.
(__enc_traits::~__enc_traits): Use it.
(__enc_traits::operator=): Use _M_destroy, _M_init.
(__enc_traits::__enc_traits): Same.
2004-03-27 Petur Runolfsson <peturr02@ru.is>
* testsuite/ext/enc_filebuf/char/13598.cc: New.