5 * MinGW specific macros included by ALL mingwrt include files; (this file
6 * is part of the MinGW32 runtime library package).
10 * Written by Mumit Khan <khan@xraylith.wisc.edu>
11 * Copyright (C) 1999, 2001-2011, 2014-2017, MinGW.org Project
14 * Permission is hereby granted, free of charge, to any person obtaining a
15 * copy of this software and associated documentation files (the "Software"),
16 * to deal in the Software without restriction, including without limitation
17 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
18 * and/or sell copies of the Software, and to permit persons to whom the
19 * Software is furnished to do so, subject to the following conditions:
21 * The above copyright notice and this permission notice (including the next
22 * paragraph) shall be included in all copies or substantial portions of the
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
26 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
27 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
28 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
29 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
30 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
31 * DEALINGS IN THE SOFTWARE.
36 /* In previous versions, __MINGW32_VERSION was expressed as a dotted
37 * numeric pair, representing major.minor; unfortunately, this doesn't
38 * adapt well to the inclusion of a patch-level component, since the
39 * major.minor.patch dotted triplet representation is not valid as a
40 * numeric entity. Thus, for this version, we adopt a representation
41 * which encodes the version as a long integer value, expressing:
43 * __MINGW32_VERSION = 1,000,000 * major + 1,000 * minor + patch
45 * DO NOT EDIT these package version assignments manually; they are
46 * derived from the package version specification within configure.ac,
47 * whence they are propagated automatically, at package build time.
49 #define __MINGW32_VERSION %PACKAGE_VERSION_LONG%L
50 #define __MINGW32_MAJOR_VERSION %PACKAGE_VERSION_MAJOR%
51 #define __MINGW32_MINOR_VERSION %PACKAGE_VERSION_MINOR%
52 #define __MINGW32_PATCHLEVEL %PACKAGE_VERSION_PATCH%
54 #if __GNUC__ >= 3 && ! defined __PCC__
55 #pragma GCC system_header
59 /* Legacy versions of mingwrt use the macro __MSVCRT_VERSION__ to
60 * enable evolving features of different MSVCRT.DLL versions. This
61 * usage is no longer recommended, but the __MSVCRT_VERSION__ macro
62 * remains useful when a non-freely distributable MSVCRxx.DLL is to
63 * be substituted for MSVCRT.DLL; for such usage, the substitute
64 * MSVCRxx.DLL may be identified as specified in...
66 # include <msvcrtver.h>
69 /* A better inference than __MSVCRT_VERSION__, of the capabilities
70 * supported by the operating system default MSVCRT.DLL, is provided
71 * by the Windows API version identification macros.
75 /* The following are defined by the user (or by the compiler), to specify how
76 * identifiers are imported from a DLL. All headers should include this first,
77 * and then use __DECLSPEC_SUPPORTED to choose between the old ``__imp__name''
78 * style or the __MINGW_IMPORT style for declarations.
80 * __DECLSPEC_SUPPORTED Defined if dllimport attribute is supported.
81 * __MINGW_IMPORT The attribute definition to specify imported
82 * variables/functions.
83 * _CRTIMP As above. For MS compatibility.
85 * Macros to enable MinGW features which deviate from standard MSVC
86 * compatible behaviour; these may be specified directly in user code,
87 * activated implicitly, (e.g. by specifying _POSIX_C_SOURCE or such),
88 * or by inclusion in __MINGW_FEATURES__:
90 * __USE_MINGW_ANSI_STDIO Select a more ANSI C99 compatible
91 * implementation of printf() and friends;
92 * (users should not set this directly).
96 * __int64 define to be long long. Using a typedef
97 * doesn't work for "unsigned __int64"
100 * Manifest definitions for flags to control globbing of the command line
101 * during application start up, (before main() is called). The first pair,
102 * when assigned as bit flags within _CRT_glob, select the globbing algorithm
103 * to be used; (the MINGW algorithm overrides MSCVRT, if both are specified).
104 * Prior to mingwrt-3.21, only the MSVCRT option was supported; this choice
105 * may produce different results, depending on which particular version of
106 * MSVCRT.DLL is in use; (in recent versions, it seems to have become
107 * definitively broken, when globbing within double quotes).
109 #define __CRT_GLOB_USE_MSVCRT__ 0x0001
111 /* From mingwrt-3.21 onward, this should be the preferred choice; it will
112 * produce consistent results, regardless of the MSVCRT.DLL version in use.
114 #define __CRT_GLOB_USE_MINGW__ 0x0002
116 /* When the __CRT_GLOB_USE_MINGW__ flag is set, within _CRT_glob, the
117 * following additional options are also available; they are not enabled
118 * by default, but the user may elect to enable any combination of them,
119 * by setting _CRT_glob to the boolean sum (i.e. logical OR combination)
120 * of __CRT_GLOB_USE_MINGW__ and the desired options.
122 * __CRT_GLOB_USE_SINGLE_QUOTE__ allows use of single (apostrophe)
123 * quoting characters, analogously to
124 * POSIX usage, as an alternative to
125 * double quotes, for collection of
126 * arguments separated by white space
127 * into a single logical argument.
129 * __CRT_GLOB_BRACKET_GROUPS__ enable interpretation of bracketed
130 * character groups as POSIX compatible
131 * globbing patterns, matching any one
132 * character which is either included
133 * in, or excluded from the group.
135 * The following options, which may also be specified within _CRT_glob,
136 * are specified in terms of their glob() flags, as defined in <glob.h>
138 * GLOB_CASEMATCH enable case sensitive matching for
139 * globbing patterns; this is default
140 * behaviour for POSIX, but because of
141 * the case insensitive nature of the
142 * MS-Windows file system, it is more
143 * appropriate to use case insensitive
144 * globbing as the MinGW default.
146 * GLOB_BRACE enable expansion of GNU style brace
147 * delimited expression groups within
148 * the globbing pattern.
151 #define __CRT_GLOB_USE_SINGLE_QUOTE__ 0x0010
152 #define __CRT_GLOB_BRACKET_GROUPS__ 0x0020
154 /* The MinGW globbing algorithm uses the ASCII DEL control code as a marker
155 * for globbing characters which were embedded within quoted arguments; (the
156 * quotes are stripped away BEFORE the argument is globbed; the globbing code
157 * treats the marked character as immutable, and strips out the DEL markers,
158 * before storing the resultant argument). The DEL code is mapped to this
159 * function here; DO NOT change it, without rebuilding the runtime.
161 #define __CRT_GLOB_ESCAPE_CHAR__ (char)(127)
164 /* Manifest definitions identifying the flag bits, controlling activation
165 * of MinGW features, as specified by the user in __MINGW_FEATURES__.
167 #define __MINGW_ANSI_STDIO__ 0x0000000000000001ULL
169 * The following three are not yet formally supported; they are
170 * included here, to document anticipated future usage.
172 #define __MINGW_LC_EXTENSIONS__ 0x0000000000000050ULL
173 #define __MINGW_LC_MESSAGES__ 0x0000000000000010ULL
174 #define __MINGW_LC_ENVVARS__ 0x0000000000000040ULL
177 /* Try to avoid problems with outdated checks for GCC __attribute__ support.
181 #if defined (__PCC__)
182 # undef __DECLSPEC_SUPPORTED
183 # ifndef __MINGW_IMPORT
184 # define __MINGW_IMPORT extern
190 # define __cdecl _Pragma("cdecl")
193 # define __stdcall _Pragma("stdcall")
196 # define __int64 long long
199 # define __int32 long
202 # define __int16 short
208 # define __small char
211 # define __hyper long long
213 # ifndef __volatile__
214 # define __volatile__ volatile
216 # ifndef __restrict__
217 # define __restrict__ restrict
219 # define NONAMELESSUNION
220 #elif defined(__GNUC__)
222 # ifndef __MINGW_IMPORT
223 /* Note the extern. This is needed to work around GCC's
224 limitations in handling dllimport attribute. */
225 # define __MINGW_IMPORT extern __attribute__((__dllimport__))
229 # define _CRTIMP __attribute__((dllimport))
234 # define __DECLSPEC_SUPPORTED
235 # else /* __declspec */
236 # undef __DECLSPEC_SUPPORTED
237 # undef __MINGW_IMPORT
241 # endif /* __declspec */
243 * The next two defines can cause problems if user code adds the
244 * __cdecl attribute like so:
245 * void __attribute__ ((__cdecl)) foo(void);
248 # define __cdecl __attribute__((__cdecl__))
251 # define __stdcall __attribute__((__stdcall__))
254 # define __int64 long long
257 # define __int32 long
260 # define __int16 short
266 # define __small char
269 # define __hyper long long
271 #else /* ! __GNUC__ && ! __PCC__ */
272 # ifndef __MINGW_IMPORT
273 # define __MINGW_IMPORT __declspec(dllimport)
276 # define _CRTIMP __declspec(dllimport)
278 # define __DECLSPEC_SUPPORTED
279 # define __attribute__(x) /* nothing */
282 #if defined (__GNUC__) && defined (__GNUC_MINOR__)
283 #define __MINGW_GNUC_PREREQ(major, minor) \
284 (__GNUC__ > (major) \
285 || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
287 #define __MINGW_GNUC_PREREQ(major, minor) 0
291 # define __CRT_INLINE inline
293 # if __GNUC_STDC_INLINE__
294 # define __CRT_INLINE extern inline __attribute__((__gnu_inline__))
296 # define __CRT_INLINE extern __inline__
301 /* A special form of __CRT_INLINE is provided; it will ALWAYS request
302 * inlining when possible. Originally specified as _CRTALIAS, this is
303 * now deprecated in favour of __CRT_ALIAS, for syntactic consistency
304 * with __CRT_INLINE itself.
306 # define _CRTALIAS __CRT_INLINE __attribute__((__always_inline__))
307 # define __CRT_ALIAS __CRT_INLINE __attribute__((__always_inline__))
309 # define _CRTALIAS __CRT_INLINE /* deprecated form */
310 # define __CRT_ALIAS __CRT_INLINE /* preferred form */
313 * Each function which is implemented as a __CRT_ALIAS should also be
314 * accompanied by an externally visible interface. The following pair
315 * of macros provide a mechanism for implementing this, either as a stub
316 * redirecting to an alternative external function, or by compilation of
317 * the normally inlined code into free standing object code; each macro
318 * provides a way for us to offer arbitrary hints for use by the build
319 * system, while remaining transparent to the compiler.
321 #define __JMPSTUB__(__BUILD_HINT__)
322 #define __LIBIMPL__(__BUILD_HINT__)
325 # define __UNUSED_PARAM(x)
328 # define __UNUSED_PARAM(x) x __attribute__((__unused__))
330 # define __UNUSED_PARAM(x) x
335 #define __MINGW_ATTRIB_NORETURN __attribute__((__noreturn__))
336 #define __MINGW_ATTRIB_CONST __attribute__((__const__))
338 #define __MINGW_ATTRIB_NORETURN
339 #define __MINGW_ATTRIB_CONST
342 #if __MINGW_GNUC_PREREQ (3, 0)
343 #define __MINGW_ATTRIB_MALLOC __attribute__((__malloc__))
344 #define __MINGW_ATTRIB_PURE __attribute__((__pure__))
346 #define __MINGW_ATTRIB_MALLOC
347 #define __MINGW_ATTRIB_PURE
350 /* Attribute `nonnull' was valid as of gcc 3.3. We don't use GCC's
351 variadiac macro facility, because variadic macros cause syntax
352 errors with --traditional-cpp. */
353 #if __MINGW_GNUC_PREREQ (3, 3)
354 #define __MINGW_ATTRIB_NONNULL(arg) __attribute__((__nonnull__(arg)))
356 #define __MINGW_ATTRIB_NONNULL(arg)
357 #endif /* GNUC >= 3.3 */
359 #if __MINGW_GNUC_PREREQ (3, 1)
360 #define __MINGW_ATTRIB_DEPRECATED __attribute__((__deprecated__))
362 #define __MINGW_ATTRIB_DEPRECATED
363 #endif /* GNUC >= 3.1 */
365 #if __MINGW_GNUC_PREREQ (3, 3)
366 #define __MINGW_NOTHROW __attribute__((__nothrow__))
368 #define __MINGW_NOTHROW
369 #endif /* GNUC >= 3.3 */
372 /* TODO: Mark (almost) all CRT functions as __MINGW_NOTHROW. This will
373 allow GCC to optimize away some EH unwind code, at least in DW2 case. */
375 /* Activation of MinGW specific extended features:
377 #ifndef __USE_MINGW_ANSI_STDIO
378 /* Users should not set this directly; rather, define one (or more)
379 * of the feature test macros (tabulated below), or specify any of the
380 * compiler's command line options, (e.g. -posix, -ansi, or -std=c...),
381 * which cause _POSIX_SOURCE, or __STRICT_ANSI__ to be defined.
383 * We must check this BEFORE we specifiy any implicit _POSIX_C_SOURCE,
384 * otherwise we would always implicitly choose __USE_MINGW_ANSI_STDIO,
385 * even if none of these selectors are specified explicitly...
387 # if defined __STRICT_ANSI__ || defined _ISOC99_SOURCE \
388 || defined _POSIX_SOURCE || defined _POSIX_C_SOURCE \
389 || defined _XOPEN_SOURCE || defined _XOPEN_SOURCE_EXTENDED \
390 || defined _GNU_SOURCE || defined _BSD_SOURCE \
391 || defined _SVID_SOURCE
393 * but where any of these source code qualifiers are specified,
394 * then assume ANSI I/O standards are preferred over Microsoft's...
396 # define __USE_MINGW_ANSI_STDIO 1
398 /* otherwise use whatever __MINGW_FEATURES__ specifies...
400 # define __USE_MINGW_ANSI_STDIO (__MINGW_FEATURES__ & __MINGW_ANSI_STDIO__)
404 #ifndef _POSIX_C_SOURCE
405 /* Users may define this, either directly or indirectly, to explicitly
406 * enable a particular level of visibility for the subset of those POSIX
407 * features which are supported by MinGW; (notice that this offers no
408 * guarantee that any particular POSIX feature will be supported).
410 # if defined _XOPEN_SOURCE
411 /* Specifying this is the preferred method for setting _POSIX_C_SOURCE;
412 * (POSIX defines an explicit relationship to _XOPEN_SOURCE). Note that
413 * any such explicit setting will augment the set of features which are
414 * available to any compilation unit, even if it seeks to be strictly
417 # if _XOPEN_SOURCE < 500
418 # define _POSIX_C_SOURCE 1L /* POSIX.1-1990 / SUSv1 */
420 # elif _XOPEN_SOURCE < 600
421 # define _POSIX_C_SOURCE 199506L /* POSIX.1-1996 / SUSv2 */
423 # elif _XOPEN_SOURCE < 700
424 # define _POSIX_C_SOURCE 200112L /* POSIX.1-2001 / SUSv3 */
427 # define _POSIX_C_SOURCE 200809L /* POSIX.1-2008 / SUSv4 */
430 # elif defined _GNU_SOURCE || defined _BSD_SOURCE || ! defined __STRICT_ANSI__
432 * No explicit level of support has been specified; implicitly grant
433 * the most comprehensive level to any compilation unit which requests
434 * either GNU or BSD feature support, or does not seek to be strictly
437 # define _POSIX_C_SOURCE 200809L
439 # if ! defined _EMULATE_GLIBC && ! defined _POSIX_SOURCE
440 /* For this default case, unless it has already been specified
441 * otherwise, we enable some GNU glibc extensions, which may be
442 * considered as violations of strict POSIX.1 conformance.
444 # define _EMULATE_GLIBC 1
447 # elif defined _POSIX_SOURCE
448 /* Now formally deprecated by POSIX, some old code may specify this;
449 * it will enable a minimal level of POSIX support, in addition to the
450 * limited feature set enabled for strict ANSI-C conformity.
452 # define _POSIX_C_SOURCE 1L
456 #ifndef _ISOC99_SOURCE
457 /* libmingwex.a provides free-standing implementations for many of the
458 * functions which were introduced in C99; MinGW headers do not expose
459 * prototypes for these, unless this feature test macro is defined, by
460 * the user, or implied by other standards. We will use a bit-mapped
461 * representation, comprising the bit-wise sum of:
464 * 0x04 required by C compiler, supporting ISO-C99
465 * 0x02 required by C++ compiler, supporting ISO-C++11
466 * 0x01 required to support recent POSIX.1 features
468 * to ensure that we can identify the reason for implicit declaration,
469 * (in the event that we may need to discriminate).
471 # if __STDC_VERSION__ >= 199901L
472 /* This represents a compiler supporting ISO-C99; enable all potential
473 * use of ISO-C99 features, (to the maximum extent supportable), which
474 * presumably also covers all C++11 and POSIX.1 usage.
476 # define _ISOC99_SOURCE 0x07
478 # elif __cplusplus >= 201103L
479 /* C++11 also incorporates many (if not all) of the ISO-C99 features,
480 * which we have guarded by _ISOC99_SOURCE; enable such features, to
481 * the required extent, (which is likely also sufficient to support
482 * any POSIX.1 dependencies).
484 # define _ISOC99_SOURCE 0x03
486 # elif _POSIX_C_SOURCE >= 200112L
487 /* This represents the minimum level of ISO-C99 support, which may be
488 * required by POSIX.1, (and which may be no less than full support).
490 # define _ISOC99_SOURCE 0x01
494 /* The the user has explicitly declared a source level dependency on
495 * ISO-C99 features; regardless of how it was declared, redefine it to
496 * ensure that any plausible dependency is covered.
498 # undef _ISOC99_SOURCE
499 # define _ISOC99_SOURCE 0x0F
501 #endif /* _ISOC99_SOURCE */
503 #if _ISOC99_SOURCE && __cplusplus >= 201103L && __GNUC__ < 6
504 /* Due to a configuration defect in GCC versions prior to GCC-6, when
505 * compiling C++11 code, the ISO-C99 functions may not be incorporated
506 * into the appropriate namespace(s); we may be able to mitigate this,
507 * by ensuring that this GCC configuration macro is defined.
509 # define _GLIBCXX_USE_C99 1
512 #if ! defined _MINGW32_SOURCE_EXTENDED && ! defined __STRICT_ANSI__
513 /* Enable mingw32 extensions by default, except when __STRICT_ANSI__
514 * conformity mode has been enabled.
516 # define _MINGW32_SOURCE_EXTENDED 1
519 #endif /* __MINGW_H: $RCSfile$: end of file */