michael@0: /*
michael@0:  * Copyright (c) 1999
michael@0:  * Silicon Graphics Computer Systems, Inc.
michael@0:  *
michael@0:  * Copyright (c) 1999
michael@0:  * Boris Fomitchev
michael@0:  *
michael@0:  * This material is provided "as is", with absolutely no warranty expressed
michael@0:  * or implied. Any use is at your own risk.
michael@0:  *
michael@0:  * Permission to use or copy this software for any purpose is hereby granted
michael@0:  * without fee, provided the above notices are retained on all copies.
michael@0:  * Permission to modify the code and to distribute modified code is granted,
michael@0:  * provided the above notices are retained, and a notice that the code was
michael@0:  * modified is included with the above copyright notice.
michael@0:  *
michael@0:  */
michael@0: #include "stlport_prefix.h"
michael@0: 
michael@0: #include <locale>
michael@0: #include <algorithm>
michael@0: 
michael@0: _STLP_BEGIN_NAMESPACE
michael@0: 
michael@0: //----------------------------------------------------------------------
michael@0: // codecvt<char, char, mbstate_t>
michael@0: 
michael@0: codecvt<char, char, mbstate_t>::~codecvt() {}
michael@0: 
michael@0: int codecvt<char, char, mbstate_t>::do_length(state_type&,
michael@0:                                               const  char* from,
michael@0:                                               const  char* end,
michael@0:                                               size_t mx) const
michael@0: { return (int)(min) ( __STATIC_CAST(size_t, (end - from)), mx); }
michael@0: 
michael@0: int codecvt<char, char, mbstate_t>::do_max_length() const _STLP_NOTHROW
michael@0: { return 1; }
michael@0: 
michael@0: bool
michael@0: codecvt<char, char, mbstate_t>::do_always_noconv() const _STLP_NOTHROW
michael@0: { return true; }
michael@0: 
michael@0: int
michael@0: codecvt<char, char, mbstate_t>::do_encoding() const _STLP_NOTHROW
michael@0: { return 1; }
michael@0: 
michael@0: codecvt_base::result
michael@0: codecvt<char, char, mbstate_t>::do_unshift(state_type& /* __state */,
michael@0:                                            char*       __to,
michael@0:                                            char*       /* __to_limit */,
michael@0:                                            char*&      __to_next) const
michael@0: { __to_next = __to; return noconv; }
michael@0: 
michael@0: codecvt_base::result
michael@0: codecvt<char, char, mbstate_t>::do_in (state_type&  /* __state */ ,
michael@0:                                        const char*  __from,
michael@0:                                        const char*  /* __from_end */,
michael@0:                                        const char*& __from_next,
michael@0:                                        char*        __to,
michael@0:                                        char*        /* __to_end */,
michael@0:                                        char*&       __to_next) const
michael@0: { __from_next = __from; __to_next   = __to; return noconv; }
michael@0: 
michael@0: codecvt_base::result
michael@0: codecvt<char, char, mbstate_t>::do_out(state_type&  /* __state */,
michael@0:                                        const char*  __from,
michael@0:                                        const char*  /* __from_end */,
michael@0:                                        const char*& __from_next,
michael@0:                                        char*        __to,
michael@0:                                        char*        /* __to_limit */,
michael@0:                                        char*&       __to_next) const
michael@0: { __from_next = __from; __to_next   = __to; return noconv; }
michael@0: 
michael@0: 
michael@0: #if !defined (_STLP_NO_WCHAR_T)
michael@0: //----------------------------------------------------------------------
michael@0: // codecvt<wchar_t, char, mbstate_t>
michael@0: 
michael@0: codecvt<wchar_t, char, mbstate_t>::~codecvt() {}
michael@0: 
michael@0: 
michael@0: codecvt<wchar_t, char, mbstate_t>::result
michael@0: codecvt<wchar_t, char, mbstate_t>::do_out(state_type&         /* state */,
michael@0:                                           const intern_type*  from,
michael@0:                                           const intern_type*  from_end,
michael@0:                                           const intern_type*& from_next,
michael@0:                                           extern_type*        to,
michael@0:                                           extern_type*        to_limit,
michael@0:                                           extern_type*&       to_next) const {
michael@0:   ptrdiff_t len = (min) (from_end - from, to_limit - to);
michael@0:   copy(from, from + len, to);
michael@0:   from_next = from + len;
michael@0:   to_next   = to   + len;
michael@0:   return ok;
michael@0: }
michael@0: 
michael@0: codecvt<wchar_t, char, mbstate_t>::result
michael@0: codecvt<wchar_t, char, mbstate_t>::do_in (state_type&       /* state */,
michael@0:                                           const extern_type*  from,
michael@0:                                           const extern_type*  from_end,
michael@0:                                           const extern_type*& from_next,
michael@0:                                           intern_type*        to,
michael@0:                                           intern_type*        to_limit,
michael@0:                                           intern_type*&       to_next) const {
michael@0:   ptrdiff_t len = (min) (from_end - from, to_limit - to);
michael@0:   copy(__REINTERPRET_CAST(const unsigned char*, from),
michael@0:        __REINTERPRET_CAST(const unsigned char*, from) + len, to);
michael@0:   from_next = from + len;
michael@0:   to_next   = to   + len;
michael@0:   return ok;
michael@0: }
michael@0: 
michael@0: codecvt<wchar_t, char, mbstate_t>::result
michael@0: codecvt<wchar_t, char, mbstate_t>::do_unshift(state_type&   /* state */,
michael@0:                                               extern_type*  to,
michael@0:                                               extern_type*  ,
michael@0:                                               extern_type*& to_next) const {
michael@0:   to_next = to;
michael@0:   return noconv;
michael@0: }
michael@0: 
michael@0: int codecvt<wchar_t, char, mbstate_t>::do_encoding() const _STLP_NOTHROW
michael@0: { return 1; }
michael@0: 
michael@0: bool codecvt<wchar_t, char, mbstate_t>::do_always_noconv() const _STLP_NOTHROW
michael@0: { return true; }
michael@0: 
michael@0: int codecvt<wchar_t, char, mbstate_t>::do_length(state_type&,
michael@0:                                                  const  extern_type* from,
michael@0:                                                  const  extern_type* end,
michael@0:                                                  size_t mx) const
michael@0: { return (int)(min) ((size_t) (end - from), mx); }
michael@0: 
michael@0: int codecvt<wchar_t, char, mbstate_t>::do_max_length() const _STLP_NOTHROW
michael@0: { return 1; }
michael@0: #endif /* wchar_t */
michael@0: 
michael@0: _STLP_END_NAMESPACE
michael@0: 
michael@0: // Local Variables:
michael@0: // mode:C++
michael@0: // End:
michael@0: