libstdc++-v3/testsuite/17_intro/names.cc

   1 // Copyright (C) 2017-2024 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // { dg-do compile }
  19 // { dg-add-options no_pch }
  20
  21 // Define macros for some common variables names that we must not use for
  22 // naming variables, parameters etc. in the library.
  23 // N.B. we cannot use '#pragma GCC poison A' because that also prevents using
  24 // these names even as macro arguments, e.g. #define FOO(A) BAR(A)
  25 #define A (
  26 #define B (
  27 #define C (
  28 #define D (
  29 #define E (
  30 #define F (
  31 #define G (
  32 #define H (
  33 // <complex.h> defines I
  34 #define J (
  35 #define K (
  36 #define L (
  37 #define M (
  38 #define N (
  39 #define O (
  40 #define P (
  41 #define Q (
  42 #define R (
  43 #define S (
  44 #define T (
  45 #define U (
  46 #define V (
  47 #define W (
  48 #define X (
  49 #define Y (
  50 #define Z (
  51 #if __cplusplus >= 201103L
  52 // <random> defines member functions called a() and b()
  53 #else
  54 #define a (
  55 #define b (
  56 #endif
  57 // <queue> and <stack> defined data members called c
  58 #if __cplusplus <= 201703L
  59 // <chrono> defines operator""d in C++20
  60 #define d (
  61 // <numbers> defines std::numbers::e in C++20
  62 #define e (
  63 #endif
  64 #define f (
  65 #define g (
  66 #if __cplusplus >= 201402L
  67 // <chrono> defines operator ""h in C++14
  68 // <complex> defines operator ""i in C++14
  69 #else
  70 #define h (
  71 #define i (
  72 #endif
  73 #define j (
  74 #if __cplusplus >= 201103L
  75 // <random> defines member functions called k()
  76 #else
  77 #define k (
  78 #endif
  79 #define l (
  80 #if __cplusplus >= 201103L
  81 // <random> defines member functions called m() and n()
  82 #else
  83 #define m (
  84 #define n (
  85 #endif
  86 #define o (
  87 #if __cplusplus >= 201103L
  88 // <random> defines member functions called p()
  89 #else
  90 #define p (
  91 #endif
  92 #define q (
  93 #define r (
  94 #if __cplusplus >= 201103L
  95 // <random> defines member functions called s() and t()
  96 // <chrono> and <string> define operator ""s in C++14
  97 #else
  98 #define s (
  99 #define t (
 100 #endif
 101 #define u (
 102 #define v (
 103 #define w (
 104 #define x (
 105 #if __cplusplus <= 201703L
 106 // <chrono> defines operator""y in C++20
 107 #define y (
 108 #endif
 109 #define z (
 110
 111 #define attributes (
 112 #define bin_op (
 113 #define clockid (
 114 #define func (
 115 #define max_val (
 116 #define min_val (
 117 #define object (
 118 #define ostr (
 119 #define policy (
 120 #define sz (
 121 #define tinfo (
 122 #define tmp (
 123 #define token (
 124 #define value_t (
 125
 126 #if __cplusplus < 201103L
 127 #define uses_allocator  (
 128 #endif
 129
 130 #if __cplusplus < 201402L
 131 // <complex> defines operator""il
 132 #define il  (
 133 #endif
 134
 135 #if __cplusplus < 201703L
 136 // <charconv> defines to_chars_result::ptr and to_chars_result::ec
 137 #define ec (
 138 #define ptr (
 139 #endif
 140
 141 // These clash with newlib so don't use them.
 142 # define __lockable             cannot be used as an identifier
 143 # define __null_sentinel        cannot be used as an identifier
 144 # define __packed               cannot be used as an identifier
 145 # define __unused               cannot be used as an identifier
 146 # define __used                 cannot be used as an identifier
 147
 148 #ifndef __APPLE__
 149 #define __weak   predefined qualifier on darwin
 150 #define __strong predefined qualifier on darwin
 151 #endif
 152
 153 // Common template parameter names
 154 #define OutputIterator          OutputIterator is not a reserved name
 155 #define InputIterator           InputIterator is not a reserved name
 156 #define ForwardIterator         ForwardIterator is not a reserved name
 157 #define BidirectionalIterator   BidirectionalIterator is not a reserved name
 158 #define RandomAccessIterator    RandomAccessIterator is not a reserved name
 159 #define RandomAccessOutputIterator      RandomAccessOutputIterator is not a reserved name
 160 #define RAI                     RAI is not a reserved name
 161 #define RAIter                  RAIter is not a reserved name
 162 #define FwdIter                 FwdIter is not a reserved name
 163 #define OutIter                 OutIter is not a reserved name
 164 #define InIter                  InIter is not a reserved name
 165
 166 #define Alloc                   Alloc is not a reserved name
 167 #define BinaryFunction1         BinaryFunction1 is not a reserved name
 168 #define BinaryFunction2         BinaryFunction2 is not a reserved name
 169 #define BinaryOperation         BinaryOperation is not a reserved name
 170 #define Char                    Char is not a reserved name
 171 #define CharT                   CharT is not a reserved name
 172 #define Cmp                     Cmp is not a reserved name
 173 #define Compare                 Compare is not a reserved name
 174 #define Const_Iterator          Const_Iterator is not a reserved name
 175 #define Const_Key_Reference     Const_Key_Reference is not a reserved name
 176 #define Const_Node_Iter         Const_Node_Iter is not a reserved name
 177 #define Const_Pointer           Const_Pointer is not a reserved name
 178 #define Const_Reference         Const_Reference is not a reserved name
 179 #define Data                    Data is not a reserved name
 180 #define DiffType                DiffType is not a reserved name
 181 #define Eq                      Eq is not a reserved name
 182 #define ExecPolicy              ExecPolicy is not a reserved name
 183 #define Expected                Expected is not a reserved name
 184 #define External_Load_Access    External_Load_Access is not a reserved name
 185 #define External_Size_Access    External_Size_Access is not a reserved name
 186 #define Fn                      Fn is not a reserved name
 187 #define Function                Function is not a reserved name
 188 #define Functor                 Functor is not a reserved name
 189 #define Hash                    Hash is not a reserved name
 190 #define H1                      H1 is not a reserved name
 191 #define H2                      H2 is not a reserved name
 192 #define Head                    Head is not a reserved name
 193 #define IsVector                IsVector is not a reserved name
 194 #define It                      It is not a reserved name
 195 #define Iter                    Iter is not a reserved name
 196 #define Iterator                Iterator is not a reserved name
 197 #define Key                     Key is not a reserved name
 198 #define Mapped                  Mapped is not a reserved name
 199 #define Node                    Node is not a reserved name
 200 #define Node_iter               Node_iter is not a reserved name
 201 #define Node_ptr                Node_ptr is not a reserved name
 202 #define Overflow                Overflow is not a reserved name
 203 #define Pointer                 Pointer is not a reserved name
 204 #define Policy                  Policy is not a reserved name
 205 #define Pred                    Pred is not a reserved name
 206 #define Proj                    Proj is not a reserved name
 207 #define Proj1                   Proj1 is not a reserved name
 208 #define Proj2                   Proj2 is not a reserved name
 209 #define Ptr                     Ptr is not a reserved name
 210 #define Reference               Reference is not a reserved name
 211 #define Seq                     Seq is not a reserved name
 212 #define Seq_RAIter              Seq_RAIter is not a reserved name
 213 #define Series                  Series is not a reserved name
 214 #define Set                     Set is not a reserved name
 215 #define Size                    Size is not a reserved name
 216 #define String                  String is not a reserved name
 217 #define Tp                      Tp is not a reserved name
 218 #define TQual                   TQual is not a reserved name
 219 #define Traits                  Traits is not a reserved name
 220 #define Type                    Type is not a reserved name
 221 #define UQual                   UQual is not a reserved name
 222 #define Value                   Value is not a reserved name
 223 #define ValueT                  ValueT is not a reserved name
 224 #define ValueType               ValueType is not a reserved name
 225
 226 #ifndef _WIN32
 227 // Windows SAL annotations
 228 #define _In_                    cannot be used as an identifier
 229 #define _Inout_                 cannot be used as an identifier
 230 #define _Out_                   cannot be used as an identifier
 231 #define _Reserved_              cannot be used as an identifier
 232 #define __inout                 cannot be used as an identifier
 233 #define __in_opt                cannot be used as an identifier
 234 #define __out_opt               cannot be used as an identifier
 235 #endif
 236
 237 #ifdef _AIX
 238 // See https://gcc.gnu.org/ml/libstdc++/2017-03/msg00015.html
 239 #undef f
 240 #undef r
 241 #undef x
 242 #undef y
 243 // <sys/var.h> defines vario::v
 244 #undef v
 245 // <sys/timer.h> defines trb::func and cputime_tmr::func
 246 #undef func
 247 // <sys/thread.h> defines tstate::policy
 248 #undef policy
 249 #endif
 250
 251 #ifdef __APPLE__
 252 // inttypes.h:  extern intmax_t imaxabs(intmax_t j);
 253 #undef j
 254 #endif
 255
 256 #ifdef __hpux__
 257 #undef d
 258 #undef r
 259 #endif
 260
 261 #if defined (__linux__) && defined (__arm__)
 262 // <sys/ucontext.h> defines fpregset_t::fpregs::j
 263 #undef j
 264 #endif
 265
 266 #if defined (__linux__) && defined (__powerpc__)
 267 // <asm/types.h> defines __vector128::u
 268 #undef u
 269 #endif
 270
 271 #if defined (__linux__) && defined (__sparc__)
 272 #undef y
 273 #endif
 274
 275 #if defined (__linux__) || defined (__gnu_hurd__)
 276 #if __has_include(<features.h>)
 277 #include <features.h>
 278 #if __GLIBC__ == 2 && __GLIBC_MINOR__ < 19
 279 // Glibc defines this prior to 2.19
 280 #undef __unused
 281 #endif
 282 #endif
 283 #endif
 284
 285 #if __has_include(<newlib.h>)
 286 // newlib's <sys/cdefs.h> defines these as macros.
 287 #undef __lockable
 288 #undef __packed
 289 #undef __unused
 290 #undef __used
 291 // newlib's <time.h> defines __tzrule_type with these members.
 292 #undef d
 293 #undef m
 294 #undef n
 295 #undef s
 296 // newlib's <math.h> uses this for parameters
 297 #undef x
 298 // newlib's <inttypes.h> uses this for parameters
 299 #undef j
 300 #endif
 301
 302 #ifdef __sun__
 303 // <fenv.h> defines these as members of fex_numeric_t
 304 #undef l
 305 #undef f
 306 #undef d
 307 #undef q
 308 #undef p
 309 // See https://gcc.gnu.org/ml/libstdc++/2019-05/msg00175.html
 310 #undef ptr
 311 // <sys/timespec_util.h> uses this as parameter
 312 #undef r
 313 // <stdlib.h> uses this as member of drand48_data
 314 #undef x
 315 #endif
 316
 317 #ifdef __VXWORKS__
 318
 319 #include <_vxworks-versions.h>
 320
 321 // Some VxWorks 6 or 7 headers are using those.
 322
 323 // private/objLibP.h
 324 #undef u
 325
 326 // arch/ppc/ffs/ArchLib.h
 327 #undef i
 328 #undef j
 329
 330 // math.h
 331 #undef x
 332 #undef y
 333
 334 // stdio.h
 335 #undef ptr
 336
 337 // VxWorks >= 7 specificities
 338
 339 #if _VXWORKS_MAJOR_GE(7)
 340
 341 // regs.h regs structure has a field 'r'
 342 #undef r
 343
 344 #ifndef __RTP__
 345 // in bootLib.h, bootParamCheck has parameters x, a-f
 346 #undef a
 347 #undef b
 348 #undef c
 349 #undef d
 350 #undef e
 351 #undef f
 352 // in sysLib.h, func appears as a formal parameter name
 353 #undef func
 354 #endif // __RTP__
 355
 356 #endif // VxWorks Major >= 7
 357
 358 #endif // __VXWORKS__
 359
 360 #ifdef _WIN32
 361 #undef Value
 362 // <stdlib.h> defines _CRT_FLOAT::f
 363 #undef f
 364 // <stdlib.h> defines _CRT_DOUBLE::x and _LONGDOUBLE::x
 365 #undef x
 366 // <math.h> defines _complex::x and _complex::y
 367 #undef y
 368 #endif
 369
 370 #include <bits/stdc++.h>