libstdc++-v3/include/bits/locale_facets.h

   1 // Locale support -*- C++ -*-
   2
   3 // Copyright (C) 1997-2000 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 2, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING.  If not, write to the Free
  18 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  19 // USA.
  20
  21 // As a special exception, you may use this file as part of a free software
  22 // library without restriction.  Specifically, if other files instantiate
  23 // templates or use macros or inline functions from this file, or you compile
  24 // this file and link it with other files to produce an executable, this
  25 // file does not by itself cause the resulting executable to be covered by
  26 // the GNU General Public License.  This exception does not however
  27 // invalidate any other reasons why the executable file might be covered by
  28 // the GNU General Public License.
  29
  30 //
  31 // ISO C++ 14882: 22.1  Locales
  32 //
  33
  34 // Warning: this file is not meant for user inclusion.  Use <locale>.
  35
  36 #ifndef _CPP_BITS_LOCFACETS_H
  37 #define _CPP_BITS_LOCFACETS_H   1
  38
  39 #include <bits/std_ctime.h>     // For struct tm
  40 #include <typeinfo>             // For bad_cast, which shouldn't be here.
  41 #include <bits/std_ios.h>       // For ios_base
  42 #ifdef _GLIBCPP_USE_WCHAR_T
  43 # include <bits/std_cwctype.h>  // For wctype_t
  44 #endif
  45
  46 namespace std
  47 {
  48   // XXX This function is to be specialized for the "required" facets to
  49   // be constructed lazily.   The specializations must be declared after
  50   // the definitions of the facets themselves; but they shouldn't be
  51   // inline.  Corresponding new's in locale::classic() should then be
  52   // eliminated.  Note that ctype<> should not get this treatment;
  53   // see the use_facet<> specializations below.
  54   //
  55   struct _Bad_use_facet : public bad_cast
  56   {
  57     _Bad_use_facet() throw() {}
  58
  59     _Bad_use_facet(_Bad_use_facet const&  __b) throw()
  60     : bad_cast(__b) { }
  61
  62     _Bad_use_facet&
  63     operator=(_Bad_use_facet const& __b) throw()
  64     {
  65       static_cast<bad_cast*>(this)->operator=(__b);
  66       return *this;
  67     }
  68
  69     virtual char const*
  70     what() const throw();
  71
  72     virtual
  73     ~_Bad_use_facet() throw();
  74   };
  75
  76   template<typename _Facet>
  77     const _Facet&
  78     _Use_facet_failure_handler(const locale&)
  79     { throw _Bad_use_facet(); }
  80
  81   // 22.2.1  The ctype category
  82   // Include host-specific ctype enums for ctype_base.
  83   #include <bits/ctype_base.h>
  84
  85   // 22.2.1.1  Template class ctype
  86   // __ctype_abstract_base is the common base for ctype<_CharT>.
  87   template<typename _CharT>
  88     class __ctype_abstract_base : public locale::facet, public ctype_base
  89     {
  90     public:
  91       // Types:
  92       typedef _CharT char_type;
  93
  94       bool
  95       is(mask __m, char_type __c) const
  96       { return this->do_is(__m, __c); }
  97
  98       const char_type*
  99       is(const char_type *__lo, const char_type *__hi, mask *__vec) const
 100       { return this->do_is(__lo, __hi, __vec); }
 101
 102       const char_type*
 103       scan_is(mask __m, const char_type* __lo, const char_type* __hi) const
 104       { return this->do_scan_is(__m, __lo, __hi); }
 105
 106       const char_type*
 107       scan_not(mask __m, const char_type* __lo, const char_type* __hi) const
 108       { return this->do_scan_not(__m, __lo, __hi); }
 109
 110       char_type
 111       toupper(char_type __c) const
 112       { return this->do_toupper(__c); }
 113
 114       const char_type*
 115       toupper(char_type *__low, const char_type* __high) const
 116       { return this->do_toupper(__low, __high); }
 117
 118       char_type
 119       tolower(char_type __c) const
 120       { return this->do_tolower(__c); }
 121
 122       const char_type*
 123       tolower(char_type* __low, const char_type* __high) const
 124       { return this->do_tolower(__low, __high); }
 125
 126       char_type
 127       widen(char __c) const
 128       { return this->do_widen(__c); }
 129
 130       const char*
 131       widen(const char* __low, const char* __high, char_type* __to) const
 132       { return this->do_widen(__low, __high, __to); }
 133
 134       char
 135       narrow(char_type __c, char __dfault) const
 136       { return this->do_narrow(__c, __dfault); }
 137
 138       const char_type*
 139       narrow(const char_type* __low, const char_type* __high,
 140               char __dfault, char *__to) const
 141       { return this->do_narrow(__low, __high, __dfault, __to); }
 142
 143     protected:
 144       explicit
 145       __ctype_abstract_base(size_t __refs = 0): locale::facet(__refs) { }
 146
 147       virtual
 148       ~__ctype_abstract_base() { }
 149
 150       virtual bool
 151       do_is(mask __m, char_type __c) const = 0;
 152
 153       virtual const char_type*
 154       do_is(const char_type* __lo, const char_type* __hi,
 155             mask* __vec) const = 0;
 156
 157       virtual const char_type*
 158       do_scan_is(mask __m, const char_type* __lo,
 159                  const char_type* __hi) const = 0;
 160
 161       virtual const char_type*
 162       do_scan_not(mask __m, const char_type* __lo,
 163                   const char_type* __hi) const = 0;
 164
 165       virtual char_type
 166       do_toupper(char_type) const = 0;
 167
 168       virtual const char_type*
 169       do_toupper(char_type* __low, const char_type* __high) const = 0;
 170
 171       virtual char_type
 172       do_tolower(char_type) const = 0;
 173
 174       virtual const char_type*
 175       do_tolower(char_type* __low, const char_type* __high) const = 0;
 176
 177       virtual char_type
 178       do_widen(char) const = 0;
 179
 180       virtual const char*
 181       do_widen(const char* __low, const char* __high,
 182                char_type* __dest) const = 0;
 183
 184       virtual char
 185       do_narrow(char_type, char __dfault) const = 0;
 186
 187       virtual const char_type*
 188       do_narrow(const char_type* __low, const char_type* __high,
 189                  char __dfault, char* __dest) const = 0;
 190     };
 191
 192   // NB: Generic, mostly useless implementation.
 193   template<typename _CharT>
 194     class ctype : public __ctype_abstract_base<_CharT>
 195     {
 196     public:
 197       // Types:
 198       typedef _CharT                    char_type;
 199       typedef typename ctype::mask      mask;
 200
 201       explicit
 202       ctype(size_t __refs = 0) : __ctype_abstract_base<_CharT>(__refs) { }
 203
 204       static locale::id id;
 205
 206    protected:
 207       virtual
 208       ~ctype() { }
 209     };
 210
 211   // 22.2.1.3  ctype specializations
 212   template<>
 213     class ctype<char> : public __ctype_abstract_base<char>
 214     {
 215     public:
 216       // Types:
 217       typedef char             char_type;
 218
 219     private:
 220       // Data Members:
 221       bool                     _M_del;
 222       __to_type const&         _M_toupper;
 223       __to_type const&         _M_tolower;
 224       const mask* const&       _M_ctable;
 225       const mask*              _M_table;
 226
 227     public:
 228       static locale::id        id;
 229       static const size_t      table_size = 1 + static_cast<unsigned char>(-1);
 230
 231       explicit
 232       ctype(const mask* __table = 0, bool __del = false, size_t __refs = 0);
 233
 234       inline bool
 235       is(mask __m, char __c) const;
 236
 237       inline const char*
 238       is(const char* __low, const char* __high, mask* __vec) const;
 239
 240       inline const char*
 241       scan_is(mask __m, const char* __low, const char* __high) const;
 242
 243       inline const char*
 244       scan_not(mask __m, const char* __low, const char* __high) const;
 245
 246     protected:
 247       virtual
 248       ~ctype();
 249
 250       const mask*
 251       table() const throw()
 252       { return _M_table; }
 253
 254       const mask*
 255       classic_table() throw()
 256       { return _M_ctable; }
 257
 258       virtual bool
 259       do_is(mask __m, char_type __c) const;
 260
 261       virtual const char_type*
 262       do_is(const char_type* __lo, const char_type* __hi,
 263             mask* __vec) const;
 264
 265       virtual const char_type*
 266       do_scan_is(mask __m, const char_type* __lo,
 267                  const char_type* __hi) const;
 268
 269       virtual const char_type*
 270       do_scan_not(mask __m, const char_type* __lo,
 271                   const char_type* __hi) const;
 272
 273       virtual char_type
 274       do_toupper(char_type) const;
 275
 276       virtual const char_type*
 277       do_toupper(char_type* __low, const char_type* __high) const;
 278
 279       virtual char_type
 280       do_tolower(char_type) const;
 281
 282       virtual const char_type*
 283       do_tolower(char_type* __low, const char_type* __high) const;
 284
 285       virtual char_type
 286       do_widen(char) const;
 287
 288       virtual const char*
 289       do_widen(const char* __low, const char* __high,
 290                char_type* __dest) const;
 291
 292       virtual char
 293       do_narrow(char_type, char __dfault) const;
 294
 295       virtual const char_type*
 296       do_narrow(const char_type* __low, const char_type* __high,
 297                  char __dfault, char* __dest) const;
 298     };
 299
 300   template<>
 301     const ctype<char>&
 302     use_facet<ctype<char> >(const locale& __loc);
 303
 304 #ifdef _GLIBCPP_USE_WCHAR_T
 305   // ctype<wchar_t> specialization
 306   template<>
 307     class ctype<wchar_t> : public __ctype_abstract_base<wchar_t>
 308     {
 309     public:
 310       // Types:
 311       typedef wchar_t          char_type;
 312       typedef wctype_t         __wmask_type;
 313
 314       // Data Members:
 315       static locale::id        id;
 316
 317       explicit
 318       ctype(size_t __refs = 0);
 319
 320     protected:
 321       __wmask_type
 322       _M_convert_to_wmask(const mask __m) const;
 323
 324       virtual
 325       ~ctype();
 326
 327       virtual bool
 328       do_is(mask __m, char_type __c) const;
 329
 330       virtual const char_type*
 331       do_is(const char_type* __lo, const char_type* __hi,
 332             mask* __vec) const;
 333
 334       virtual const char_type*
 335       do_scan_is(mask __m, const char_type* __lo,
 336                  const char_type* __hi) const;
 337
 338       virtual const char_type*
 339       do_scan_not(mask __m, const char_type* __lo,
 340                   const char_type* __hi) const;
 341
 342       virtual char_type
 343       do_toupper(char_type) const;
 344
 345       virtual const char_type*
 346       do_toupper(char_type* __low, const char_type* __high) const;
 347
 348       virtual char_type
 349       do_tolower(char_type) const;
 350
 351       virtual const char_type*
 352       do_tolower(char_type* __low, const char_type* __high) const;
 353
 354       virtual char_type
 355       do_widen(char) const;
 356
 357       virtual const char*
 358       do_widen(const char* __low, const char* __high,
 359                char_type* __dest) const;
 360
 361       virtual char
 362       do_narrow(char_type, char __dfault) const;
 363
 364       virtual const char_type*
 365       do_narrow(const char_type* __low, const char_type* __high,
 366                  char __dfault, char* __dest) const;
 367
 368     };
 369
 370   template<>
 371     const ctype<wchar_t>&
 372     use_facet<ctype<wchar_t> >(const locale& __loc);
 373 #endif //_GLIBCPP_USE_WCHAR_T
 374
 375   // Include host-specific ctype inlines.
 376   #include <bits/ctype_inline.h>
 377
 378   // 22.2.1.2  Template class ctype_byname
 379   template<typename _CharT>
 380     class ctype_byname : public ctype<_CharT>
 381     {
 382     public:
 383       typedef _CharT            char_type;
 384
 385       explicit
 386       ctype_byname(const char*, size_t __refs = 0);
 387
 388     protected:
 389       virtual
 390       ~ctype_byname() { }
 391     };
 392
 393   // 22.2.1.4  Class ctype_byname specialization
 394   template<>
 395     ctype_byname<char>::ctype_byname(const char*, size_t refs);
 396
 397
 398   template<typename _CharT, typename _InIter>
 399     class _Numeric_get;  // forward
 400
 401   // _Format_cache holds the information extracted from the numpunct<>
 402   // and moneypunct<> facets in a form optimized for parsing and
 403   // formatting.  It is stored via a void* pointer in the pword()
 404   // array of an iosbase object passed to the _get and _put facets.
 405   // NB: contains no user-serviceable parts.
 406   template<typename _CharT>
 407     class _Format_cache
 408     {
 409     public:
 410       // Types:
 411       typedef _CharT                            char_type;
 412       typedef char_traits<_CharT>               traits_type;
 413       typedef basic_string<_CharT>              string_type;
 414       typedef typename string_type::size_type   size_type;
 415
 416       // Forward decls and Friends:
 417       friend class locale;
 418       template<typename _Char, typename _InIter>
 419         friend class _Numeric_get;
 420       friend class num_get<_CharT>;
 421       friend class num_put<_CharT>;
 422       friend class time_get<_CharT>;
 423       friend class money_get<_CharT>;
 424       friend class time_put<_CharT>;
 425       friend class money_put<_CharT>;
 426
 427       // Data Members:
 428
 429       // ios_base::pword() reserved cell
 430       static int                _S_pword_ix;
 431
 432       // True iff data members are consistent with the current locale,
 433       // ie imbue sets this to false.
 434       bool                      _M_valid;
 435
 436       // A list of valid numeric literals: for the standard "C" locale,
 437       // this would usually be: "-+xX0123456789abcdef0123456789ABCDEF"
 438       static const char         _S_literals[];
 439
 440       // NB: Code depends on the order of definitions of the names
 441       // these are indices into _S_literals, above.
 442       // This string is formatted for putting, not getting. (output, not input)
 443       enum
 444       {
 445         _S_minus,
 446         _S_plus,
 447         _S_x,
 448         _S_X,
 449         _S_digits,
 450         _S_digits_end = _S_digits + 16,
 451         _S_udigits = _S_digits_end,
 452         _S_udigits_end = _S_udigits + 16,
 453         _S_ee = _S_digits + 14, // For scientific notation, 'E'
 454         _S_Ee = _S_udigits + 14 // For scientific notation, 'e'
 455       };
 456
 457       // The sign used to separate decimal values: for standard US
 458       // locales, this would usually be: "."
 459       // Abstracted from numpunct::decimal_point().
 460       char_type                 _M_decimal_point;
 461
 462       // The sign used to separate groups of digits into smaller
 463       // strings that the eye can parse with less difficulty: for
 464       // standard US locales, this would usually be: ","
 465       // Abstracted from numpunct::thousands_sep().
 466       char_type                 _M_thousands_sep;
 467
 468       // However the US's "false" and "true" are translated.
 469       // From numpunct::truename() and numpunct::falsename(), respectively.
 470       string_type               _M_truename;
 471       string_type               _M_falsename;
 472
 473       // If we are checking groupings. This should be equivalent to
 474       // numpunct::groupings().size() != 0
 475       bool                      _M_use_grouping;
 476
 477       // If we are using numpunct's groupings, this is the current
 478       // grouping string in effect (from numpunct::grouping()).
 479       string                    _M_grouping;
 480
 481       _Format_cache();
 482
 483       ~_Format_cache() throw() { }
 484
 485       // Given a member of the ios heirarchy as an argument, extract
 486       // out all the current formatting information into a
 487       // _Format_cache object and return a pointer to it.
 488       static _Format_cache<_CharT>*
 489       _S_get(ios_base& __ios);
 490
 491       void
 492       _M_populate(ios_base&);
 493
 494       static void
 495       _S_callback(ios_base::event __event, ios_base& __ios, int __ix) throw();
 496     };
 497
 498    template<> _Format_cache<char>::_Format_cache();
 499 #ifdef _GLIBCPP_USE_WCHAR_T
 500    template<> _Format_cache<wchar_t>::_Format_cache();
 501 #endif
 502
 503   // _Numeric_get is used by num_get, money_get, and time_get to help
 504   // in parsing out numbers.
 505   template<typename _CharT, typename _InIter>
 506     class _Numeric_get
 507     {
 508     public:
 509       // Types:
 510       typedef _CharT     char_type;
 511       typedef _InIter    iter_type;
 512
 513       // Forward decls and Friends:
 514       template<typename _Char, typename _InIterT>
 515       friend class num_get;
 516       template<typename _Char, typename _InIterT>
 517       friend class time_get;
 518       template<typename _Char, typename _InIterT>
 519       friend class money_get;
 520       template<typename _Char, typename _InIterT>
 521       friend class num_put;
 522       template<typename _Char, typename _InIterT>
 523       friend class time_put;
 524       template<typename _Char, typename _InIterT>
 525       friend class money_put;
 526
 527     private:
 528       explicit
 529       _Numeric_get() { }
 530
 531       virtual
 532       ~_Numeric_get() { }
 533
 534       iter_type
 535       _M_get_digits(iter_type __in, iter_type __end) const;
 536     };
 537
 538   template<typename _CharT, typename _InIter>
 539     class num_get : public locale::facet
 540     {
 541     public:
 542       // Types:
 543       typedef _CharT                    char_type;
 544       typedef _InIter                   iter_type;
 545       typedef char_traits<_CharT>       __traits_type;
 546
 547       static locale::id id;
 548
 549       explicit
 550       num_get(size_t __refs = 0) : locale::facet(__refs) { }
 551
 552       iter_type
 553       get(iter_type __in, iter_type __end, ios_base& __io,
 554           ios_base::iostate& __err, bool& __v) const
 555       { return do_get(__in, __end, __io, __err, __v); }
 556
 557 #ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS
 558       iter_type
 559       get(iter_type __in, iter_type __end, ios_base& __io,
 560           ios_base::iostate& __err, short& __v) const
 561       { return do_get(__in, __end, __io, __err, __v); }
 562
 563       iter_type
 564       get(iter_type __in, iter_type __end, ios_base& __io,
 565           ios_base::iostate& __err, int& __v)   const
 566       { return do_get(__in, __end, __io, __err, __v); }
 567 #endif
 568
 569       iter_type
 570       get(iter_type __in, iter_type __end, ios_base& __io,
 571           ios_base::iostate& __err, long& __v) const
 572       { return do_get(__in, __end, __io, __err, __v); }
 573
 574 #ifdef _GLIBCPP_USE_LONG_LONG
 575       iter_type
 576       get(iter_type __in, iter_type __end, ios_base& __io,
 577           ios_base::iostate& __err, long long& __v) const
 578       { return do_get(__in, __end, __io, __err, __v); }
 579 #endif
 580
 581       iter_type
 582       get(iter_type __in, iter_type __end, ios_base& __io,
 583           ios_base::iostate& __err, unsigned short& __v) const
 584       { return do_get(__in, __end, __io, __err, __v); }
 585
 586       iter_type
 587       get(iter_type __in, iter_type __end, ios_base& __io,
 588           ios_base::iostate& __err, unsigned int& __v)   const
 589       { return do_get(__in, __end, __io, __err, __v); }
 590
 591       iter_type
 592       get(iter_type __in, iter_type __end, ios_base& __io,
 593           ios_base::iostate& __err, unsigned long& __v)  const
 594       { return do_get(__in, __end, __io, __err, __v); }
 595
 596 #ifdef _GLIBCPP_USE_LONG_LONG
 597       iter_type
 598       get(iter_type __in, iter_type __end, ios_base& __io,
 599           ios_base::iostate& __err, unsigned long long& __v)  const
 600       { return do_get(__in, __end, __io, __err, __v); }
 601 #endif
 602
 603       iter_type
 604       get(iter_type __in, iter_type __end, ios_base& __io,
 605           ios_base::iostate& __err, float& __v) const
 606       { return do_get(__in, __end, __io, __err, __v); }
 607
 608       iter_type
 609       get(iter_type __in, iter_type __end, ios_base& __io,
 610           ios_base::iostate& __err, double& __v) const
 611       { return do_get(__in, __end, __io, __err, __v); }
 612
 613       iter_type
 614       get(iter_type __in, iter_type __end, ios_base& __io,
 615           ios_base::iostate& __err, long double& __v) const
 616       { return do_get(__in, __end, __io, __err, __v); }
 617
 618       iter_type
 619       get(iter_type __in, iter_type __end, ios_base& __io,
 620           ios_base::iostate& __err, void*& __v) const
 621       { return do_get(__in, __end, __io, __err, __v); }
 622
 623     protected:
 624       virtual ~num_get() { }
 625
 626       // This consolidates the extraction, storage and
 627       // error-processing parts of the do_get(...) overloaded member
 628       // functions.
 629       // NB: This is specialized for char.
 630       void
 631       _M_extract(iter_type __beg, iter_type __end, ios_base& __io,
 632                  ios_base::iostate& __err, char* __xtrc,
 633                  int& __base, bool __fp = true) const;
 634
 635       virtual iter_type
 636       do_get(iter_type, iter_type, ios_base&, ios_base::iostate&, bool&) const;
 637
 638 #ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS
 639       virtual iter_type
 640       do_get(iter_type, iter_type, ios_base&, ios_base::iostate&, short&) const;
 641       virtual iter_type
 642       do_get(iter_type, iter_type, ios_base&, ios_base::iostate&, int&) const;
 643 #endif
 644       virtual iter_type
 645       do_get (iter_type, iter_type, ios_base&, ios_base::iostate&, long&) const;
 646 #ifdef _GLIBCPP_USE_LONG_LONG
 647       virtual iter_type
 648       do_get(iter_type, iter_type, ios_base&, ios_base::iostate& __err,
 649              long long&) const;
 650 #endif
 651       virtual iter_type
 652       do_get(iter_type, iter_type, ios_base&, ios_base::iostate& __err,
 653               unsigned short&) const;
 654       virtual iter_type
 655       do_get(iter_type, iter_type, ios_base&,
 656               ios_base::iostate& __err, unsigned int&) const;
 657       virtual iter_type
 658       do_get(iter_type, iter_type, ios_base&,
 659               ios_base::iostate& __err, unsigned long&) const;
 660 #ifdef _GLIBCPP_USE_LONG_LONG
 661       virtual iter_type
 662       do_get(iter_type, iter_type, ios_base&,
 663              ios_base::iostate& __err, unsigned long long&) const;
 664 #endif
 665       virtual iter_type
 666       do_get(iter_type, iter_type, ios_base&, ios_base::iostate& __err,
 667              float&) const;
 668
 669       virtual iter_type
 670       do_get(iter_type, iter_type, ios_base&, ios_base::iostate& __err,
 671              double&) const;
 672
 673       virtual iter_type
 674       do_get(iter_type, iter_type, ios_base&,
 675              ios_base::iostate& __err, long double&) const;
 676
 677       virtual iter_type
 678       do_get(iter_type, iter_type, ios_base&, ios_base::iostate& __err,
 679              void*&) const;
 680     };
 681
 682   // Declare specialized extraction member function.
 683   template<>
 684     void
 685     num_get<char, istreambuf_iterator<char> >::
 686     _M_extract(istreambuf_iterator<char> __beg,
 687                istreambuf_iterator<char> __end, ios_base& __io,
 688                ios_base::iostate& __err, char* __xtrc,
 689                int& __base, bool __fp) const;
 690
 691   // _Numeric_put is used by num_put, money_put, and time_put
 692   //   to help in formatting out numbers.
 693   template<typename _CharT, typename _OutIter>
 694     class _Numeric_put
 695     {
 696     public:
 697       typedef _CharT      char_type;
 698       typedef _OutIter    iter_type;
 699     protected:
 700       explicit
 701       _Numeric_put() { }
 702
 703       virtual
 704       ~_Numeric_put() { }
 705     };
 706
 707   template<typename _CharT, typename _OutIter>
 708     class num_put : public locale::facet
 709     {
 710     public:
 711       // Types:
 712       typedef _CharT       char_type;
 713       typedef _OutIter     iter_type;
 714
 715       static locale::id id;
 716
 717       explicit
 718       num_put(size_t __refs = 0) : locale::facet(__refs) { }
 719
 720       iter_type
 721       put(iter_type __s, ios_base& __f, char_type __fill, bool __v) const
 722       { return do_put(__s, __f, __fill, __v); }
 723
 724       iter_type
 725       put(iter_type __s, ios_base& __f, char_type __fill, long __v) const
 726       { return do_put(__s, __f, __fill, __v); }
 727
 728       iter_type
 729       put(iter_type __s, ios_base& __f, char_type __fill,
 730           unsigned long __v) const
 731       { return do_put(__s, __f, __fill, __v); }
 732
 733 #ifdef _GLIBCPP_USE_LONG_LONG
 734       iter_type
 735       put(iter_type __s, ios_base& __f, char_type __fill, long long __v) const
 736       { return do_put(__s, __f, __fill, __v); }
 737
 738       iter_type
 739       put(iter_type __s, ios_base& __f, char_type __fill,
 740           unsigned long long __v) const
 741       { return do_put(__s, __f, __fill, __v); }
 742 #endif
 743
 744       iter_type
 745       put(iter_type __s, ios_base& __f, char_type __fill, double __v) const
 746       { return do_put(__s, __f, __fill, __v); }
 747
 748       iter_type
 749       put(iter_type __s, ios_base& __f, char_type __fill,
 750           long double __v) const
 751       { return do_put(__s, __f, __fill, __v); }
 752
 753       iter_type
 754       put(iter_type __s, ios_base& __f, char_type __fill,
 755           const void* __v) const
 756       { return do_put(__s, __f, __fill, __v); }
 757
 758     protected:
 759       virtual
 760       ~num_put() { };
 761
 762       virtual iter_type
 763       do_put(iter_type, ios_base&, char_type __fill, bool __v) const;
 764
 765       virtual iter_type
 766       do_put(iter_type, ios_base&, char_type __fill, long __v) const;
 767
 768 #ifdef _GLIBCPP_USE_LONG_LONG
 769       virtual iter_type
 770       do_put(iter_type, ios_base&, char_type __fill, long long __v) const;
 771 #endif
 772
 773       virtual iter_type
 774       do_put(iter_type, ios_base&, char_type __fill, unsigned long) const;
 775
 776 #ifdef _GLIBCPP_USE_LONG_LONG
 777       virtual iter_type
 778       do_put(iter_type, ios_base&, char_type __fill, unsigned long long) const;
 779 #endif
 780
 781       virtual iter_type
 782       do_put(iter_type, ios_base&, char_type __fill, double __v) const;
 783
 784       virtual iter_type
 785       do_put(iter_type, ios_base&, char_type __fill, long double __v) const;
 786
 787       virtual iter_type
 788       do_put(iter_type, ios_base&, char_type __fill, const void* __v) const;
 789     };
 790
 791   template<typename _CharT>
 792     class _Punct : public locale::facet
 793     {
 794     public:
 795       // Types:
 796       typedef _CharT               char_type;
 797       typedef basic_string<_CharT> string_type;
 798
 799       char_type
 800       decimal_point() const
 801       { return do_decimal_point(); }
 802
 803       char_type
 804       thousands_sep() const
 805       { return do_thousands_sep(); }
 806
 807       string
 808       grouping() const
 809       { return do_grouping(); }
 810     protected:
 811
 812       explicit
 813       _Punct(size_t __refs = 0) : locale::facet(__refs) { }
 814
 815       virtual
 816       ~_Punct() { }
 817
 818       virtual char_type
 819       do_decimal_point() const
 820       { return _M_decimal_point; }
 821
 822       virtual char_type
 823       do_thousands_sep() const
 824       { return _M_thousands_sep; }
 825
 826       virtual string
 827       do_grouping() const
 828       { return _M_grouping; }
 829
 830     private:
 831       char_type _M_decimal_point;
 832       char_type _M_thousands_sep;
 833       string    _M_grouping;
 834
 835     protected:
 836       // for use at construction time only:
 837       void
 838       _M_init(char_type __d, char_type __t, const string& __g)
 839       {
 840         _M_decimal_point = __d;
 841         _M_thousands_sep = __t;
 842         _M_grouping = __g;
 843       }
 844
 845     };
 846
 847   template<typename _CharT>
 848     class _Numpunct : public _Punct<_CharT>
 849     {
 850     public:
 851       // Types:
 852       typedef _CharT               char_type;
 853       typedef basic_string<_CharT> string_type;
 854
 855       string_type
 856       truename() const
 857       { return do_truename(); }
 858
 859       string_type
 860       falsename() const
 861       { return do_falsename(); }
 862
 863     protected:
 864       explicit
 865       _Numpunct(size_t __refs = 0) : _Punct<_CharT> (__refs) { }
 866
 867       virtual
 868       ~_Numpunct() { }
 869
 870       virtual string_type
 871       do_truename() const
 872       { return _M_truename; }
 873
 874       virtual string_type
 875       do_falsename() const
 876       { return _M_falsename; }
 877
 878     private:
 879       string_type _M_truename;
 880       string_type _M_falsename;
 881
 882     protected:
 883       // For use only during construction
 884       void
 885       _M_boolnames_init(const string_type& __t, const string_type& __f)
 886       {
 887         _M_truename = __t;
 888         _M_falsename = __f;
 889       }
 890
 891     };
 892
 893   template<typename _CharT>
 894     class numpunct : public _Numpunct<_CharT>
 895     {
 896     public:
 897       typedef _CharT               char_type;
 898       typedef basic_string<_CharT> string_type;
 899
 900       static locale::id id;
 901
 902       explicit
 903       numpunct(size_t __refs = 0) : _Numpunct<_CharT>(__refs) { }
 904     protected:
 905
 906       virtual
 907       ~numpunct() { }
 908     };
 909
 910   template<>
 911     numpunct<char>::numpunct(size_t __refs): _Numpunct<char>(__refs)
 912     {
 913       _M_init('.', ',', "");
 914       _M_boolnames_init("true", "false");
 915     }
 916
 917 #ifdef _GLIBCPP_USE_WCHAR_T
 918   template<>
 919     numpunct<wchar_t>::numpunct(size_t __refs): _Numpunct<wchar_t>(__refs)
 920     {
 921       _M_init(L'.', L',', "");
 922       _M_boolnames_init(L"true", L"false");
 923     }
 924 #endif
 925
 926   template<typename _CharT>
 927     class numpunct_byname : public numpunct<_CharT>
 928     {
 929     public:
 930       typedef _CharT               char_type;
 931       typedef basic_string<_CharT> string_type;
 932
 933       explicit
 934       numpunct_byname(const char*, size_t __refs = 0);
 935
 936     protected:
 937       virtual
 938       ~numpunct_byname() { }
 939     };
 940
 941   template<>
 942     numpunct_byname<char>::numpunct_byname(const char*, size_t __refs);
 943 #ifdef _GLIBCPP_USE_WCHAR_T
 944   template<>
 945     numpunct_byname<wchar_t>::numpunct_byname(const char*, size_t __refs);
 946 #endif
 947
 948   template<typename _CharT>
 949     class _Collate : public locale::facet
 950     {
 951     public:
 952       // Types:
 953       typedef _CharT               char_type;
 954       typedef basic_string<_CharT> string_type;
 955
 956       int
 957       compare(const _CharT* __lo1, const _CharT* __hi1,
 958               const _CharT* __lo2, const _CharT* __hi2) const
 959       { return do_compare(__lo1, __hi1, __lo2, __hi2); }
 960
 961       string_type
 962       transform(const _CharT* __lo, const _CharT* __hi) const
 963       { return do_transform(__lo, __hi); }
 964
 965       long
 966       hash(const _CharT* __lo, const _CharT* __hi) const
 967       { return do_hash(__lo, __hi); }
 968
 969   protected:
 970       explicit
 971       _Collate(size_t __refs = 0) : locale::facet(__refs) { }
 972
 973       ~_Collate() { } // virtual
 974
 975       virtual int
 976       do_compare(const _CharT* __lo1, const _CharT* __hi1,
 977                  const _CharT* __lo2, const _CharT* __hi2) const = 0;
 978
 979       virtual string_type
 980       do_transform(const _CharT* __lo, const _CharT* __hi) const = 0;
 981
 982       virtual long
 983       do_hash(const _CharT* __lo, const _CharT* __hi) const = 0;
 984     };
 985
 986   template<typename _CharT>
 987     class collate : public _Collate<_CharT>
 988     {
 989     public:
 990       // Types:
 991       typedef _CharT               char_type;
 992       typedef basic_string<_CharT> string_type;
 993
 994       explicit
 995       collate(size_t __refs = 0) : _Collate<_CharT> (__refs) { }
 996
 997       static locale::id id;
 998
 999     protected:
1000       virtual
1001       ~collate() { }
1002     };
1003
1004   template<>
1005     class collate<char> : public _Collate<char>
1006     {
1007     public:
1008       // Types:
1009       typedef char               char_type;
1010       typedef basic_string<char> string_type;
1011
1012       explicit
1013       collate(size_t __refs = 0);
1014
1015       static locale::id id;
1016
1017     protected:
1018       virtual
1019       ~collate();
1020
1021       virtual int
1022       do_compare(const char* __lo1, const char* __hi1,
1023                  const char* __lo2, const char* __hi2) const;
1024
1025       virtual string_type
1026       do_transform(const char* __lo, const char* __hi) const;
1027
1028       virtual long
1029       do_hash(const char* __lo, const char* __hi) const;
1030     };
1031
1032 #ifdef _GLIBCPP_USE_WCHAR_T
1033   template<>
1034     class collate<wchar_t> : public _Collate<wchar_t>
1035     {
1036     public:
1037       // Types:
1038       typedef wchar_t               char_type;
1039       typedef basic_string<wchar_t> string_type;
1040
1041       explicit
1042       collate(size_t __refs = 0);
1043
1044       static locale::id id;
1045
1046     protected:
1047       virtual
1048       ~collate();
1049
1050       virtual int
1051       do_compare(const wchar_t* __lo1, const wchar_t* __hi1,
1052                  const wchar_t* __lo2, const wchar_t* __hi2) const;
1053
1054       virtual string_type
1055       do_transform(const wchar_t* __lo, const wchar_t* __hi) const;
1056
1057       virtual long
1058       do_hash(const wchar_t* __lo, const wchar_t* __hi) const;
1059     };
1060 #endif
1061
1062   template<typename _CharT>
1063     class collate_byname : public collate<_CharT>
1064     {
1065     public:
1066       // Types:
1067       typedef _CharT               char_type;
1068       typedef basic_string<_CharT> string_type;
1069
1070       explicit
1071       collate_byname(const char*, size_t __refs = 0);
1072
1073     protected:
1074       virtual
1075       ~collate_byname() { }
1076     };
1077
1078   template<>
1079     collate_byname<char>::collate_byname(const char*, size_t __refs);
1080 #ifdef _GLIBCPP_USE_WCHAR_T
1081   template<>
1082     collate_byname<wchar_t>::collate_byname(const char*, size_t __refs);
1083 #endif
1084
1085   class time_base
1086   {
1087   public:
1088     enum dateorder { no_order, dmy, mdy, ymd, ydm };
1089   };
1090
1091   template<typename _CharT, typename _InIter>
1092     class time_get : public locale::facet, public time_base
1093     {
1094     public:
1095       // Types:
1096       typedef _CharT     char_type;
1097       typedef _InIter    iter_type;
1098
1099       static locale::id id;
1100
1101       explicit
1102       time_get(size_t __refs = 0)
1103       : locale::facet (__refs), _M_daynames(0), _M_monthnames(0) { }
1104
1105       dateorder
1106       date_order()  const
1107       { return do_date_order(); }
1108
1109       iter_type
1110       get_time(iter_type __s, iter_type __end, ios_base& __f,
1111                ios_base::iostate& __err, tm* __t)  const
1112       { return do_get_time(__s, __end, __f, __err, __t); }
1113
1114       iter_type
1115       get_date(iter_type __s, iter_type __end, ios_base& __f,
1116                ios_base::iostate& __err, tm* __t)  const
1117       { return do_get_date(__s, __end, __f, __err, __t); }
1118
1119       iter_type
1120       get_weekday(iter_type __s, iter_type __end, ios_base& __f,
1121                   ios_base::iostate& __err, tm* __t) const
1122       { return do_get_weekday(__s,__end,__f,__err,__t); }
1123
1124       iter_type
1125       get_monthname(iter_type __s, iter_type __end, ios_base& __f,
1126                     ios_base::iostate& __err, tm* __t) const
1127       { return do_get_monthname(__s,__end,__f,__err,__t); }
1128
1129       iter_type
1130       get_year(iter_type __s, iter_type __end, ios_base& __f,
1131                ios_base::iostate& __err, tm* __t) const
1132       { return do_get_year(__s,__end,__f,__err,__t); }
1133
1134     protected:
1135       virtual
1136       ~time_get()
1137       {
1138         delete [] _M_monthnames;
1139         delete [] _M_daynames;
1140       }
1141
1142       virtual dateorder
1143       do_date_order()  const
1144       { return time_base::ymd; }
1145
1146       virtual iter_type
1147       do_get_time(iter_type __s, iter_type /*__end*/, ios_base&,
1148                   ios_base::iostate& /*__err*/, tm* /*__t*/) const
1149       { return __s; }
1150
1151       virtual iter_type
1152       do_get_date(iter_type __s, iter_type /*__end*/, ios_base&,
1153                   ios_base::iostate& /*__err*/, tm* /*__t*/) const
1154       { return __s; }
1155
1156       virtual iter_type
1157       do_get_weekday(iter_type __s, iter_type __end, ios_base&,
1158                      ios_base::iostate& __err, tm* __t) const;
1159
1160       virtual iter_type
1161       do_get_monthname(iter_type __s, iter_type __end, ios_base&,
1162                        ios_base::iostate& __err, tm* __t) const;
1163
1164       virtual iter_type
1165       do_get_year(iter_type __s, iter_type /*__end*/, ios_base&,
1166                    ios_base::iostate& /*__err*/, tm* /*__t*/) const
1167       { return __s; }
1168
1169       mutable basic_string<_CharT>* _M_daynames;
1170       mutable basic_string<_CharT>* _M_monthnames;
1171     };
1172
1173   template<typename _CharT, typename _InIter>
1174     class time_get_byname : public time_get<_CharT, _InIter>
1175     {
1176     public:
1177       typedef _CharT     char_type;
1178       typedef _InIter    iter_type;
1179
1180       explicit
1181       time_get_byname(const char*, size_t __refs = 0)
1182       : time_get<_CharT, _InIter>(__refs) { }
1183     protected:
1184       virtual
1185       ~time_get_byname() { }
1186     };
1187
1188   template<typename _CharT, typename _OutIter>
1189     class time_put : public locale::facet, public time_base
1190     {
1191     public:
1192       typedef _CharT     char_type;
1193       typedef _OutIter   iter_type;
1194
1195       static locale::id id;
1196
1197       explicit
1198       time_put(size_t __refs = 0) : locale::facet (__refs) { }
1199
1200       // NB: this is a nonvirtual, calls do_put in a loop.
1201       iter_type
1202       put(iter_type __s, ios_base& /*__f*/, char_type /*__fill*/,
1203           const tm* /*__tmb*/, const _CharT* /*__pattern*/,
1204           const _CharT* /*__pat_end*/) const
1205       { return __s; }
1206
1207       iter_type
1208       put(iter_type __s, ios_base& __f, char_type __fill,
1209           const tm* __tmb, char __format, char __modifier = 0) const
1210       { return do_put(__s, __f, __fill, __tmb, __format, __modifier); }
1211
1212     protected:
1213       virtual
1214       ~time_put() { }
1215
1216       virtual iter_type
1217       do_put(iter_type __s, ios_base&, char_type, const tm* /*__t*/,
1218              char /*__format*/, char /*__mod*/) const
1219       { return __s; }
1220     };
1221
1222   template<typename _CharT, typename _OutIter>
1223     class time_put_byname : public time_put<_CharT, _OutIter>
1224     {
1225     public:
1226       typedef _CharT     char_type;
1227       typedef _OutIter   iter_type;
1228
1229       explicit
1230       time_put_byname(const char*, size_t __refs = 0)
1231       : time_put<_CharT, _OutIter> (__refs) { }
1232
1233     protected:
1234       virtual
1235       ~time_put_byname() { }
1236     };
1237
1238
1239   template<typename _CharT, typename _InIter>
1240     class money_get : public locale::facet
1241     {
1242     public:
1243       typedef _CharT        char_type;
1244       typedef _InIter       iter_type;
1245       typedef basic_string<_CharT> string_type;
1246
1247       static locale::id id;
1248
1249       explicit
1250       money_get(size_t __refs = 0) : locale::facet(__refs) { }
1251
1252       iter_type
1253       get(iter_type __s, iter_type __end, bool __intl,
1254           ios_base& __f, ios_base::iostate& __err, long double& __units) const
1255       { return do_get(__s, __end, __intl, __f, __err, __units); }
1256
1257       iter_type
1258       get(iter_type __s, iter_type __end, bool __intl, ios_base& __f,
1259            ios_base::iostate& __err, string_type& __digits) const
1260       { return do_get(__s, __end, __intl, __f, __err, __digits); }
1261
1262     protected:
1263       virtual
1264       ~money_get() { }
1265
1266       virtual iter_type
1267       do_get(iter_type __s, iter_type /*__end*/, bool /*__intl*/,
1268              ios_base& /*__io*/, ios_base::iostate& /*__err*/,
1269              long double& /*__units*/) const
1270       { return __s; }
1271
1272       virtual iter_type
1273       do_get(iter_type __s, iter_type /*__end*/, bool /*__intl*/,
1274              ios_base& /*__io*/, ios_base::iostate& /*__err*/,
1275              string_type& /*__digits*/) const
1276       { return __s; }
1277     };
1278
1279   template<typename _CharT, typename _OutIter>
1280     class money_put : public locale::facet
1281     {
1282     public:
1283       typedef _CharT              char_type;
1284       typedef _OutIter            iter_type;
1285       typedef basic_string<_CharT> string_type;
1286
1287       static locale::id id;
1288
1289       explicit
1290       money_put(size_t __refs = 0) : locale::facet(__refs) { }
1291
1292       iter_type
1293       put(iter_type __s, bool __intl, ios_base& __f,
1294           char_type __fill, long double __units) const
1295       { return do_put(__s, __intl, __f, __fill, __units); }
1296
1297       iter_type
1298       put(iter_type __s, bool __intl, ios_base& __f,
1299           char_type __fill, const string_type& __digits) const
1300       { return do_put(__s, __intl, __f, __fill, __digits); }
1301
1302     protected:
1303       virtual
1304       ~money_put() { }
1305
1306       virtual iter_type
1307       do_put(iter_type __s, bool, ios_base& /*__io*/, char_type /*__fill*/,
1308              long double /*__units*/) const
1309       { return __s; }
1310
1311       virtual iter_type
1312       do_put(iter_type __s, bool, ios_base& /*__io*/, char_type /*__fill*/,
1313              const string_type& /*__digits*/) const
1314       { return __s; }
1315     };
1316
1317   struct money_base
1318   {
1319     enum part { none, space, symbol, sign, value };
1320     struct pattern { char field[4]; };
1321
1322     static const pattern _S_default_pattern;
1323   };
1324
1325   template<typename _CharT>
1326     class _Moneypunct : public _Punct<_CharT>, public money_base
1327     {
1328     public:
1329       typedef _CharT char_type;
1330       typedef basic_string<_CharT> string_type;
1331
1332       string_type
1333       curr_symbol()   const
1334       { return do_curr_symbol(); }
1335
1336       string_type
1337       positive_sign() const
1338       { return do_positive_sign(); }
1339
1340       string_type
1341       negative_sign() const
1342       { return do_negative_sign(); }
1343
1344       int
1345       frac_digits()   const
1346       { return do_frac_digits(); }
1347
1348       pattern
1349       pos_format()    const
1350       { return do_pos_format(); }
1351
1352       pattern
1353       neg_format()    const
1354       { return do_neg_format(); }
1355
1356     protected:
1357       explicit
1358       _Moneypunct(size_t __refs = 0) : _Punct<_CharT> (__refs) { }
1359
1360       virtual
1361       ~_Moneypunct() { }
1362
1363       virtual string_type
1364       do_curr_symbol()   const
1365       { return basic_string<_CharT>(); }
1366
1367       virtual string_type
1368       do_positive_sign() const
1369       { return basic_string<_CharT>(); }
1370
1371       virtual string_type
1372       do_negative_sign() const
1373       { return basic_string<_CharT>(); }
1374
1375       virtual int
1376       do_frac_digits() const
1377       { return 0; }
1378
1379       virtual pattern
1380       do_pos_format() const
1381       { return money_base::_S_default_pattern; }
1382
1383       virtual pattern
1384       do_neg_format() const
1385       { return money_base::_S_default_pattern; }
1386     };
1387
1388   template<typename _CharT, bool _Intl>
1389     class moneypunct : public _Moneypunct<_CharT>
1390     {
1391     public:
1392       // Types:
1393       typedef _CharT                    char_type;
1394       typedef basic_string<_CharT>      string_type;
1395
1396       static const bool intl = _Intl;
1397       static locale::id id;
1398
1399       explicit
1400       moneypunct(size_t __refs = 0) : _Moneypunct<_CharT> (__refs) { }
1401
1402     protected:
1403       virtual
1404       ~moneypunct() { }
1405     };
1406
1407   template<typename _CharT, bool _Intl>
1408     class moneypunct_byname : public moneypunct<_CharT,_Intl>
1409     {
1410     public:
1411       typedef _CharT char_type;
1412       typedef basic_string<_CharT> string_type;
1413       static const bool intl = _Intl;
1414
1415       explicit
1416       moneypunct_byname(const char*, size_t __refs = 0);
1417
1418     protected:
1419       virtual
1420       ~moneypunct_byname() { }
1421     };
1422
1423   template<>
1424     moneypunct_byname<char, false>::
1425     moneypunct_byname(const char*, size_t __refs);
1426   template<>
1427     moneypunct_byname<char, true>::
1428     moneypunct_byname(const char*, size_t __refs);
1429 #ifdef _GLIBCPP_USE_WCHAR_T
1430   template<>
1431     moneypunct_byname<wchar_t,false>::
1432     moneypunct_byname(const char*, size_t __refs);
1433   template<>
1434     moneypunct_byname<wchar_t,true>::
1435     moneypunct_byname (const char*, size_t __refs);
1436 #endif
1437
1438   struct messages_base
1439   {
1440     typedef int catalog;
1441   };
1442
1443   template<typename _CharT>
1444     class _Messages : public locale::facet, public messages_base
1445     {
1446     public:
1447       typedef _CharT char_type;
1448       typedef basic_string<_CharT> string_type;
1449
1450       catalog
1451       open(const basic_string<char>& __s, const locale& __loc) const
1452       { return do_open(__s, __loc); }
1453
1454       string_type
1455       get(catalog __c, int __set, int __msgid, const string_type& __s) const
1456       { return do_get(__c,__set,__msgid,__s); }
1457
1458       void
1459       close(catalog __c) const
1460       { return do_close(__c); }
1461
1462     protected:
1463       explicit
1464       _Messages(size_t __refs = 0) : locale::facet(__refs) { }
1465
1466       virtual
1467       ~_Messages() { }
1468
1469       // NB: Probably these should be pure, and implemented only in
1470       //  specializations of messages<>.  But for now...
1471       virtual catalog
1472       do_open(const basic_string<char>&, const locale&) const
1473       { return 0; }
1474
1475       virtual string_type
1476       do_get(catalog, int, int /*__msgid*/, const string_type& __dfault) const
1477       { return __dfault; }
1478
1479       virtual void
1480       do_close (catalog) const { }
1481     };
1482
1483   template<typename _CharT>
1484     class messages : public _Messages<_CharT>
1485     {
1486     public:
1487       typedef _CharT char_type;
1488       typedef basic_string<_CharT> string_type;
1489       static locale::id id;
1490
1491       explicit
1492       messages(size_t __refs = 0) : _Messages<_CharT> (__refs) { }
1493     protected:
1494       virtual
1495       ~messages() { }
1496     };
1497
1498   template<typename _CharT>
1499     class messages_byname : public messages<_CharT>
1500     {
1501     public:
1502       typedef _CharT char_type;
1503       typedef basic_string<_CharT> string_type;
1504
1505       explicit
1506       messages_byname(const char*, size_t __refs = 0);
1507
1508     protected:
1509       virtual
1510       ~messages_byname() { }
1511     };
1512
1513   template<>
1514     messages_byname<char>::messages_byname(const char*, size_t __refs);
1515 #ifdef _GLIBCPP_USE_WCHAR_T
1516   template<>
1517     messages_byname<wchar_t>::messages_byname(const char*, size_t __refs);
1518 #endif
1519
1520   // Subclause convenience interfaces, inlines
1521   // NB: these are inline
1522   // because, when used in a loop, some compilers can hoist the body
1523   // out of the loop; then it's just as fast as the C is*() function.
1524   template<typename _CharT>
1525     inline bool
1526     isspace(_CharT __c, const locale& __loc)
1527     { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::space, __c); }
1528
1529   template<typename _CharT>
1530     inline bool
1531     isprint(_CharT __c, const locale& __loc)
1532     { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::print, __c); }
1533
1534   template<typename _CharT>
1535     inline bool
1536     iscntrl(_CharT __c, const locale& __loc)
1537     { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::cntrl, __c); }
1538
1539   template<typename _CharT>
1540     inline bool
1541     isupper(_CharT __c, const locale& __loc)
1542     { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::upper, __c); }
1543
1544   template<typename _CharT>
1545     inline bool islower(_CharT __c, const locale& __loc)
1546     { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::lower, __c); }
1547
1548   template<typename _CharT>
1549     inline bool
1550     isalpha(_CharT __c, const locale& __loc)
1551     { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::alpha, __c); }
1552
1553   template<typename _CharT>
1554     inline bool
1555     isdigit(_CharT __c, const locale& __loc)
1556     { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::digit, __c); }
1557
1558   template<typename _CharT>
1559     inline bool
1560     ispunct(_CharT __c, const locale& __loc)
1561     { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::punct, __c); }
1562
1563   template<typename _CharT>
1564     inline bool
1565     isxdigit(_CharT __c, const locale& __loc)
1566     { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::xdigit, __c); }
1567
1568   template<typename _CharT>
1569     inline bool
1570     isalnum(_CharT __c, const locale& __loc)
1571     { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::alnum, __c); }
1572
1573   template<typename _CharT>
1574     inline bool
1575     isgraph(_CharT __c, const locale& __loc)
1576     { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::graph, __c); }
1577
1578   template<typename _CharT>
1579     inline _CharT
1580     toupper(_CharT __c, const locale& __loc)
1581     { return use_facet<ctype<_CharT> >(__loc).toupper(__c); }
1582
1583   template<typename _CharT>
1584     inline _CharT
1585     tolower(_CharT __c, const locale& __loc)
1586     { return use_facet<ctype<_CharT> >(__loc).tolower(__c); }
1587
1588 } // namespace std
1589
1590 #endif  /* _CPP_BITS_LOCFACETS_H */
1591
1592 // Local Variables:
1593 // mode:c++
1594 // End:
1595