/home/ntakagi/work/STLport-5.1.5/src/codecvt.cpp
Go to the documentation of this file.00001 /* 00002 * Copyright (c) 1999 00003 * Silicon Graphics Computer Systems, Inc. 00004 * 00005 * Copyright (c) 1999 00006 * Boris Fomitchev 00007 * 00008 * This material is provided "as is", with absolutely no warranty expressed 00009 * or implied. Any use is at your own risk. 00010 * 00011 * Permission to use or copy this software for any purpose is hereby granted 00012 * without fee, provided the above notices are retained on all copies. 00013 * Permission to modify the code and to distribute modified code is granted, 00014 * provided the above notices are retained, and a notice that the code was 00015 * modified is included with the above copyright notice. 00016 * 00017 */ 00018 #include "stlport_prefix.h" 00019 00020 #ifndef _STLP_NO_MBSTATE_T 00021 00022 #include <locale> 00023 #include <algorithm> 00024 00025 _STLP_BEGIN_NAMESPACE 00026 00027 //---------------------------------------------------------------------- 00028 // codecvt<char, char, mbstate_t> 00029 00030 codecvt<char, char, mbstate_t>::~codecvt() {} 00031 00032 int codecvt<char, char, mbstate_t>::do_length(const mbstate_t&, 00033 const char* from, 00034 const char* end, 00035 size_t mx) const 00036 { return (int)(min) ( __STATIC_CAST(size_t, (end - from)), mx); } 00037 00038 int codecvt<char, char, mbstate_t>::do_max_length() const _STLP_NOTHROW 00039 { return 1; } 00040 00041 bool 00042 codecvt<char, char, mbstate_t>::do_always_noconv() const _STLP_NOTHROW 00043 { return true; } 00044 00045 int 00046 codecvt<char, char, mbstate_t>::do_encoding() const _STLP_NOTHROW 00047 { return 1; } 00048 00049 codecvt_base::result 00050 codecvt<char, char, mbstate_t>::do_unshift(mbstate_t& /* __state */, 00051 char* __to, 00052 char* /* __to_limit */, 00053 char*& __to_next) const 00054 { __to_next = __to; return noconv; } 00055 00056 codecvt_base::result 00057 codecvt<char, char, mbstate_t>::do_in (mbstate_t& /* __state */ , 00058 const char* __from, 00059 const char* /* __from_end */, 00060 const char*& __from_next, 00061 char* __to, 00062 char* /* __to_end */, 00063 char*& __to_next) const 00064 { __from_next = __from; __to_next = __to; return noconv; } 00065 00066 codecvt_base::result 00067 codecvt<char, char, mbstate_t>::do_out(mbstate_t& /* __state */, 00068 const char* __from, 00069 const char* /* __from_end */, 00070 const char*& __from_next, 00071 char* __to, 00072 char* /* __to_limit */, 00073 char*& __to_next) const 00074 { __from_next = __from; __to_next = __to; return noconv; } 00075 00076 00077 #if !defined (_STLP_NO_WCHAR_T) 00078 //---------------------------------------------------------------------- 00079 // codecvt<wchar_t, char, mbstate_t> 00080 00081 codecvt<wchar_t, char, mbstate_t>::~codecvt() {} 00082 00083 00084 codecvt<wchar_t, char, mbstate_t>::result 00085 codecvt<wchar_t, char, mbstate_t>::do_out(state_type& /* state */, 00086 const intern_type* from, 00087 const intern_type* from_end, 00088 const intern_type*& from_next, 00089 extern_type* to, 00090 extern_type* to_limit, 00091 extern_type*& to_next) const { 00092 ptrdiff_t len = (min) (from_end - from, to_limit - to); 00093 copy(from, from + len, to); 00094 from_next = from + len; 00095 to_next = to + len; 00096 return ok; 00097 } 00098 00099 codecvt<wchar_t, char, mbstate_t>::result 00100 codecvt<wchar_t, char, mbstate_t>::do_in (state_type& /* state */, 00101 const extern_type* from, 00102 const extern_type* from_end, 00103 const extern_type*& from_next, 00104 intern_type* to, 00105 intern_type* to_limit, 00106 intern_type*& to_next) const { 00107 ptrdiff_t len = (min) (from_end - from, to_limit - to); 00108 copy(__REINTERPRET_CAST(const unsigned char*, from), 00109 __REINTERPRET_CAST(const unsigned char*, from) + len, to); 00110 from_next = from + len; 00111 to_next = to + len; 00112 return ok; 00113 } 00114 00115 codecvt<wchar_t, char, mbstate_t>::result 00116 codecvt<wchar_t, char, mbstate_t>::do_unshift(state_type& /* state */, 00117 extern_type* to, 00118 extern_type* , 00119 extern_type*& to_next) const { 00120 to_next = to; 00121 return noconv; 00122 } 00123 00124 int codecvt<wchar_t, char, mbstate_t>::do_encoding() const _STLP_NOTHROW 00125 { return 1; } 00126 00127 bool codecvt<wchar_t, char, mbstate_t>::do_always_noconv() const _STLP_NOTHROW 00128 { return true; } 00129 00130 int codecvt<wchar_t, char, mbstate_t>::do_length(const state_type&, 00131 const extern_type* from, 00132 const extern_type* end, 00133 size_t mx) const 00134 { return (int)(min) ((size_t) (end - from), mx); } 00135 00136 int codecvt<wchar_t, char, mbstate_t>::do_max_length() const _STLP_NOTHROW 00137 { return 1; } 00138 #endif /* wchar_t */ 00139 00140 _STLP_END_NAMESPACE 00141 00142 #endif /* _STLP_NO_MBSTATE_T */ 00143 00144 // Local Variables: 00145 // mode:C++ 00146 // End: 00147
Generated on Mon Mar 10 15:32:16 2008 by
1.5.1