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// PR debug/43290
// { dg-do compile }
// { dg-options "-O2" }
// { dg-options "-O3 -mavx -fPIC -mtune=core2" { target { { i?86-*-* x86_64-*-* } && { ilp32 && fpic } } } }
namespace std
{
template <class> struct char_traits;
}
typedef struct { union { char __wchb[4]; }; } mbstate_t;
namespace std
{
template <typename _StateT> struct fpos
{
long long _M_off;
_StateT _M_state;
fpos (long long):_M_off (), _M_state () { }
_StateT state () { return _M_state; }
};
typedef fpos <mbstate_t> streampos;
}
namespace std
{
template <> struct char_traits <char>
{
typedef streampos pos_type;
typedef long long off_type;
typedef mbstate_t state_type;
};
}
struct pthread_mutex_t;
namespace
{
enum _Ios_Openmode { _S_in = 3, _S_out };
enum _Ios_Seekdir { _S_beg };
struct ios_base
{
typedef _Ios_Openmode openmode;
static const openmode in = _S_in;
static const openmode out = _S_out;
typedef _Ios_Seekdir seekdir;
static const seekdir beg = _S_beg;
};
template < typename _CharT, typename > struct basic_streambuf
{
typedef _CharT char_type;
char_type * _M_in_beg;
char_type *eback () { return _M_in_beg; }
char_type *gptr () {}
};
}
namespace std
{
typedef struct pthread_mutex_t __c_lock;
template <typename> class __basic_file;
template <> struct __basic_file <char>
{
__basic_file (__c_lock * = 0);
bool is_open ();
};
template <typename _CharT, typename _Traits> struct basic_filebuf : public basic_streambuf <_CharT, _Traits>
{
typedef _CharT char_type;
typedef _Traits traits_type;
typedef typename traits_type::pos_type pos_type;
typedef typename traits_type::off_type off_type;
typedef __basic_file < char >__file_type;
typedef typename traits_type::state_type __state_type;
__file_type _M_file;
char_type *_M_pback_cur_save;
bool _M_pback_init;
void _M_destroy_pback () throw ()
{
_M_pback_cur_save += this->gptr () != this->eback ();
_M_pback_init = false;
}
bool is_open () throw () { return _M_file.is_open (); }
pos_type seekpos (pos_type, ios_base::openmode = ios_base::in | ios_base::out);
pos_type _M_seek (off_type, ios_base::seekdir, __state_type);
};
template <typename _CharT, typename _Traits>
typename basic_filebuf <_CharT, _Traits>::pos_type
basic_filebuf <_CharT, _Traits>::seekpos (pos_type __pos, ios_base::openmode)
{
pos_type __ret = (off_type ());
if (this->is_open ())
{
_M_destroy_pback ();
__ret = _M_seek (off_type (), ios_base::beg, __pos.state ());
}
return __ret;
}
template class basic_filebuf <char, char_traits <char> >;
}
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