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This commit is contained in:
Jose Caban
286
extern/stdcxx/4.2.1/include/loc/_facet.h
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286
extern/stdcxx/4.2.1/include/loc/_facet.h
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/***************************************************************************
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*
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* _facet.h - definition of the std::locale::facet and locale::id classes
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*
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* This is an internal header file used to implement the C++ Standard
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* Library. It should never be #included directly by a program.
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*
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* $Id: _facet.h 586016 2007-10-18 15:53:57Z sebor $
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*
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***************************************************************************
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* permissions and limitations under the License.
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*
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* Copyright 1994-2007 Rogue Wave Software, Inc.
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*
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**************************************************************************/
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#ifndef _RWSTD_LOC_FACET_H_INCLUDED
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#define _RWSTD_LOC_FACET_H_INCLUDED
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#include <rw/_mutex.h>
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#include <rw/_defs.h>
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_RWSTD_NAMESPACE (std) {
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struct _RWSTD_CLASS_EXPORT locale;
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} // namespace std
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_RWSTD_NAMESPACE (__rw) {
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class _RWSTD_EXPORT __rw_locale;
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struct __rw_access;
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struct _RWSTD_EXPORT __rw_facet: __rw_synchronized
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{
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// the type of a "constructor" function used to create facet objects
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// of standard types by the library
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typedef __rw_facet* (_C_ctor_t)(_RWSTD_SIZE_T, const char*);
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#if !defined (_MSC_VER) || 5 <= _RWSTD_VER_MAJOR
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// disabled for binary compatibility with stdcxx 4.1.x for MSVC
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// (the compiler mangles access specifiers into class members)
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protected:
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#endif // !MSVC || 5 <= stdcxx version
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_EXPLICIT __rw_facet (_RWSTD_SIZE_T = 0);
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virtual ~__rw_facet ();
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public:
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// types of standard facets; only globally managed facets (i.e.,
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// standard facets created internally) set this member, user-created
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// facet objects of any types set their type to _C_unknown
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// NOTE: the values and order of all the enumerators below are important
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// any changes may affect the binary compatibility of the library
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enum _C_facet_type {
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/* -1 */ _C_invalid = -1, // marked e.g., when deleted
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/* 0 */ _C_unknown = 0, // user-defined
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// narrow character specializations
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// classic versions // byname versions
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//
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/* id */ // <-- facet id, i.e. the value of Facet::id._C_val
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// collate category
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/* 1 */ _C_collate, _C_collate_byname,
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// ctype category
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/* 3 */ _C_codecvt, _C_codecvt_byname,
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/* 5 */ _C_ctype, _C_ctype_byname,
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// monetary category
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/* 7 */ _C_moneypunct, _C_moneypunct_byname,
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/* 9 */ _C_moneypunct_intl, _C_moneypunct_intl_byname,
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/* 11 */ _C_money_get, _C_nonexistent_0,
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/* 13 */ _C_money_put, _C_nonexistent_1,
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// numeric category
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/* 15 */ _C_numpunct, _C_numpunct_byname,
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/* 17 */ _C_num_get, _C_nonexistent_2,
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/* 19 */ _C_num_put, _C_nonexistent_3,
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// time category
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/* 21 */ _C_time_get, _C_time_get_byname,
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/* 23 */ _C_time_put, _C_time_put_byname,
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// messages category
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/* 25 */ _C_messages, _C_messages_byname,
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// wide character specializations
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// classic versions // byname versions
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/* 27 */ _C_wcollate, _C_wcollate_byname,
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/* 29 */ _C_wcodecvt, _C_wcodecvt_byname,
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/* 31 */ _C_wctype, _C_wctype_byname,
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/* 33 */ _C_wmoneypunct, _C_wmoneypunct_byname,
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/* 35 */ _C_wmoneypunct_intl, _C_wmoneypunct_intl_byname,
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/* 37 */ _C_wmoney_get, _C_nonexistent_4,
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/* 39 */ _C_wmoney_put, _C_nonexistent_5,
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/* 41 */ _C_wnumpunct, _C_wnumpunct_byname,
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/* 43 */ _C_wnum_get, _C_nonexistent_6,
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/* 45 */ _C_wnum_put, _C_nonexistent_7,
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/* 47 */ _C_wtime_get, _C_wtime_get_byname,
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/* 49 */ _C_wtime_put, _C_wtime_put_byname,
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/* 51 */ _C_wmessages, _C_wmessages_byname,
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// the value of each standard facet's id is computed
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// as (facet_type + 1) / 2; the value is stored in
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// each facet's *__rw_facet::_C_pid member
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// the value of the first available (non-standard)
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// facet's id is computed as (_C_last_type / 2 + 1)
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// note that this value determines the binary footprint of each facet
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// changing it affects the binary compatibility of the localization
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// library
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/* 52 */ _C_last_type = _C_wmessages_byname
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};
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// unique fundamental type id
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enum _C_type_id {
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_C_signed = 0x100, _C_ptr = 0x200, _C_cont = 0x400,
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_C_integral = 0x800, _C_floating = 0x1000, _C_typemask = 0x00ff,
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_C_bool = 0,
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_C_char = 1 | _C_integral,
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_C_uchar = 2 | _C_integral, _C_schar = _C_uchar | _C_signed,
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_C_ushort = 3 | _C_integral, _C_short = _C_ushort | _C_signed,
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_C_uint = 4 | _C_integral, _C_int = _C_uint | _C_signed,
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_C_ulong = 5 | _C_integral, _C_long = _C_ulong | _C_signed,
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_C_ullong = 6 | _C_integral, _C_llong = _C_ullong | _C_signed,
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_C_float = 7 | _C_floating,
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_C_double = 8 | _C_floating,
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_C_ldouble = 9 | _C_floating,
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_C_void = 10, _C_pvoid = _C_void | _C_ptr,
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_C_wchar_t = 11
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};
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enum {
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// SunOS prepends the separator charater to the beginning
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// of locale names, e.g., "/en_US/de_DE/fr_FR/..."
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_C_prepend_cat_sep = 0x01,
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// Linux uses the names of LC_XXX constants in combined
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// locale names,
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// e.g., "LC_CYPE=en_US;LC_COLLATE=de_DE;LC_MONETARY=fr_FR..."
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_C_use_cat_names = 0x02,
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// HP-UX, for instance, keeps even trivial locale names
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// fully expanded
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// (e.g., setlocale ("C") will return "C C C C C C")
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// and doesn't include category names in (combined or others)
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// locale names
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_C_condensed_name = 0x04,
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// bits to determine whether and when libc locale will be
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// used as an implementation of C++ locale functionality
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//
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// libc libstd effect
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// 0 0 use own implementation, fall back on libc if that fails
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// 0 1 use own implementation only, never libc
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// 1 0 use libc implementation only, never own
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// 1 1 try libc implementation first, own if that fails
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_C_use_libc = 0x08,
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_C_use_libstd = 0x10
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};
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// global options controlling the behavior of locale and facets
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static int _C_opts;
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// returns a pointer to the facet's implementation data
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// if it exists, 0 otherwise
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const void* _C_data () const {
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return _C_impsize ? _C_impdata
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: _RWSTD_CONST_CAST (__rw_facet*, this)->_C_get_data ();
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}
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const char* _C_get_name () const {
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return _C_name ? _C_name : "C";
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}
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protected:
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// set facet locale name (will allocate if bufsize is too small)
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void _C_set_name (const char*, char*, _RWSTD_SIZE_T);
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const char *_C_name; // name of locale associated with facet
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char *_C_buf; // character buffer name may be stored in
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const void *_C_impdata; // implementation data (e.g., punct)
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_RWSTD_SIZE_T _C_impsize; // size of implementation data
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private:
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_C_facet_type _C_type; // facet type (see above)
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_RWSTD_SIZE_T _C_ref; // reference count (> 0)
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_RWSTD_SIZE_T *_C_pid; // pointer to the static Facet::id._C_id
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// standard facets' id's are computed as (_C_type + 1) / 2
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// standard facet's base type is computed as 2 * Facet::id._C_id - 1
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__rw_facet (const __rw_facet&); // not defined
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void operator= (const __rw_facet&); // not defined
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const void* _C_get_data ();
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static __rw_facet*
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_C_manage (__rw_facet*, _C_facet_type, const char*, _C_ctor_t*);
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friend struct _STD::locale;
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friend class __rw_locale;
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friend struct __rw_facet_id;
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friend struct __rw_access;
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};
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struct _RWSTD_EXPORT __rw_facet_id
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{
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#ifdef _RWSTD_NO_SPECIALIZED_FACET_ID
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__rw_facet_id () {
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// _C_id member zero-initialized (i.e., invalidated) by the system
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// for __rw_facet_id objects with static storage duration, the only
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// ones locale ever references
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}
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#else // if !defined (_RWSTD_NO_SPECIALIZED_FACET_ID)
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enum _C_init_id { _C_Init };
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__rw_facet_id (_C_init_id = _C_Init) {
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// same as above except that Facet::id is explicitly specialized
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// for all standard facet base classes in order to guarantee one
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// instance of each in a program; the definition of the explicit
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// specialization is distinguished from the declaration by the
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// presence of an initializer
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}
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#endif // _RWSTD_NO_SPECIALIZED_FACET_ID
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private:
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__rw_facet_id (const __rw_facet_id&); // not defined
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void operator= (const __rw_facet_id&); // not defined
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// initialize id to the given value if within the valid range
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// otherwise to the next value generated by the id generator
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_RWSTD_SIZE_T _C_init () const;
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_MUTABLE _RWSTD_SIZE_T _C_id; // unique id > 0
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friend class __rw_locale;
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friend struct _STD::locale;
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friend struct __rw_access;
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};
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// does the necessary path calculations and mapping of locale databases
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const void*
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__rw_get_facet_data (int, _RWSTD_SIZE_T&, const char*, const char* = 0);
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// its counterpart - does the database unmapping
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void __rw_release_facet_data (const void*, _RWSTD_SIZE_T);
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} // namespace __rw
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#endif // _RWSTD_LOC_FACET_H_INCLUDED
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