4 /* Auxiliary PDCLib code <_PDCLIB_aux.h>
6 This file is part of the Public Domain C Library (PDCLib).
7 Permission is granted to use, modify, and / or redistribute at will.
10 /* -------------------------------------------------------------------------- */
11 /* You should not have to edit anything in this file; if you DO have to, it */
12 /* would be considered a bug / missing feature: notify the author(s). */
13 /* -------------------------------------------------------------------------- */
15 /* -------------------------------------------------------------------------- */
16 /* Standard Version */
17 /* -------------------------------------------------------------------------- */
19 /* Many a compiler gets this wrong, so you might have to hardcode it instead. */
22 #error Compiler does not define _ _STDC_ _ to 1 (not standard-compliant)!
25 #if defined(_PDCLIB_C_VERSION)
26 /* Pass - conditional simplification case */
27 #elif !defined(__STDC_VERSION__)
28 #define _PDCLIB_C_VERSION 1990
29 #elif __STDC_VERSION__ == 199409L
30 #define _PDCLIB_C_VERSION 1995
31 #elif __STDC_VERSION__ == 199901L
32 #define _PDCLIB_C_VERSION 1999
33 #elif __STDC_VERSION__ == 201112L
34 #define _PDCLIB_C_VERSION 2011
36 #error Unsupported _ _STDC_VERSION_ _ (__STDC_VERSION__) (supported: ISO/IEC 9899:1990, 9899/AMD1:1995, 9899:1999, 9899:2011).
39 #if !defined(__cplusplus) || defined(_PDCLIB_CXX_VERSION)
40 #define _PDCLIB_CXX_VERSION 0
41 #elif __cplusplus == 201103L
42 #define _PDCLIB_CXX_VERSION 2011
43 /* TODO: Do we want this? */
44 #if _PDCLIB_C_VERSION < 2011
45 #undef _PDCLIB_C_VERSION
46 #define _PDCLIB_C_VERSION 2011
48 #elif __cplusplus == 199711L
49 #define _PDCLIB_CXX_VERSION 1997
51 #error Unsupported _ _cplusplus (__cplusplus) (supported: ISO/IEC 14882:1997, ISO/IEC 14882:2011).
54 #if _PDCLIB_C_VERSION >= 1999 || defined(__cplusplus)
56 #define _PDCLIB_restrict restrict
58 #define _PDCLIB_inline inline
61 #if _PDCLIB_CXX_VERSION >= 2011
62 #define _PDCLIB_nothrow noexcept
63 #define _PDCLIB_noexcept(x) noexcept(x)
64 #elif _PDCLIB_CXX_VERSION
65 #define _PDCLIB_nothrow throw()
66 #define _PDCLIB_noexcept
69 #if _PDCLIB_CXX_VERSION >= 2011
70 // Hold off on C++ attribute syntax for now
71 // #define _PDCLIB_noreturn [[noreturn]]
72 #elif _PDCLIB_C_VERSION >= 2011
73 #define _PDCLIB_noreturn _Noreturn
77 #define _PDCLIB_EXPORT __declspec(dllexport)
78 #define _PDCLIB_IMPORT __declspec(dllimport)
82 #ifndef _PDCLIB_EXPORT
83 #define _PDCLIB_EXPORT __attribute__((__visibility__("protected")))
86 #ifndef _PDCLIB_IMPORT
87 #define _PDCLIB_IMPORT
90 #ifndef _PDCLIB_HIDDEN
91 #define _PDCLIB_HIDDEN __attribute__((__visibility__("hidden")))
94 #ifndef _PDCLIB_nothrow
95 #define _PDCLIB_nothrow __attribute__((__nothrow__))
96 #define _PDCLIB_noexcept
99 #ifndef _PDCLIB_restrict
100 #define _PDCLIB_restrict __restrict
103 #ifndef _PDCLIB_inline
104 #define _PDCLIB_inline __inline
107 #ifndef _PDCLIB_noreturn
108 /* If you don't use __noreturn__, then stdnoreturn.h will break things! */
109 #define _PDCLIB_noreturn __attribute__((__noreturn__))
112 #ifndef _PDCLIB_DEPRECATED
113 #define _PDCLIB_DEPRECATED __attribute__ ((deprecated))
117 #ifndef _PDCLIB_nothrow
118 #define _PDCLIB_nothrow
119 #define _PDCLIB_noexcept
122 #ifndef _PDCLIB_EXPORT
123 #define _PDCLIB_EXPORT
125 #ifndef _PDCLIB_IMPORT
126 #define _PDCLIB_IMPORT
128 #ifndef _PDCLIB_HIDDEN
129 #define _PDCLIB_HIDDEN
132 #if defined(_PDCLIB_SHARED)
133 #if defined(_PDCLIB_BUILD)
134 #define _PDCLIB_API _PDCLIB_EXPORT
136 #define _PDCLIB_API _PDCLIB_IMPORT
142 #ifndef _PDCLIB_restrict
143 #define _PDCLIB_restrict
146 #ifndef _PDCLIB_inline
147 #define _PDCLIB_inline
150 #ifndef _PDCLIB_noreturn
151 #define _PDCLIB_noreturn
154 #ifndef _PDCLIB_DEPRECATED
155 #define _PDCLIB_DEPRECATED
158 #ifndef __STDC_HOSTED__
159 #error Compiler does not define _ _STDC_HOSTED_ _ (not standard-compliant)!
160 #elif __STDC_HOSTED__ == 0
161 #define _PDCLIB_HOSTED 0
162 #elif __STDC_HOSTED__ == 1
163 #define _PDCLIB_HOSTED 1
165 #error Compiler does not define _ _STDC_HOSTED_ _ to 0 or 1 (not standard-compliant)!
169 #define _PDCLIB_BEGIN_EXTERN_C extern "C" {
170 #define _PDCLIB_END_EXTERN_C }
171 typedef bool _PDCLIB_bool;
173 #define _PDCLIB_BEGIN_EXTERN_C
174 #define _PDCLIB_END_EXTERN_C
175 typedef _Bool _PDCLIB_bool;
178 /*#if _PDCLIB_C_VERSION != 1999
179 #error PDCLib might not be fully conforming to either C89 or C95 prior to v2.x.
182 /* -------------------------------------------------------------------------- */
184 /* _PDCLIB_cc( x, y ) concatenates two preprocessor tokens without extending */
185 /* _PDCLIB_concat( x, y ) concatenates two preprocessor tokens with extending */
186 /* -------------------------------------------------------------------------- */
188 #define _PDCLIB_cc( x, y ) x ## y
189 #define _PDCLIB_concat( x, y ) _PDCLIB_cc( x, y )
190 #define _PDCLIB_concat3( x, y, z ) _PDCLIB_concat( _PDCLIB_concat( x, y ), z )
192 #define _PDCLIB_symbol2value( x ) #x
193 #define _PDCLIB_symbol2string( x ) _PDCLIB_symbol2value( x )
195 /* Feature test macros
197 * All of the feature test macros come in the following forms
198 * _PDCLIB_*_MIN(min): Available in versions >= min
199 * _PDCLIB_*_MINMAX(min, max): Available in versions >= min <= max
200 * _PDCLIB_*_MAX(max): Availabel in versions <= max
202 * The defined tests are:
203 * C: C standard versions
204 * 1990, 1995, 1999, 2011
205 * CXX: C++ standard versions
207 * POSIX: POSIX extension versions.
208 * 1 (POSIX.2), 2 (POSIX.2), 199309L (POSIX.1b),
209 * 199506L (POSIX.1c), 200112L (2001), 200809L (2008)
210 * XOPEN: X/Open System Interface (XSI)/Single Unix Specification
211 * 0 (XPG4), 500 (SUSv2/UNIX98), 600 (SUSv3/UNIX03), 700 (SUSv4)
213 * Additionally, the macros
214 * _BSD_SOURCE, _SVID_SOURCE and _GNU_SOURCE
215 * are adhered to. If _GNU_SOURCE is defined, _XOPEN_SOURCE and
216 * _POSIX_C_SOURCE are defined to their most recent values to match glibc
219 * The intention of supporting these feature test macros is to ease
220 * application portability from these systems to PDCLib systems; in addition,
221 * it eases support for these standards by systems supporting them which are
222 * using PDCLib as their default C library.
224 * Applications targetting purely PDClib/PDCLib based platforms may define
225 * just _PDCLIB_EXTENSIONS, which will enable all supported extensions, plus
226 * all features from all supported versions of C and C++.
229 #define _PDCLIB_C_MIN(min) _PDCLIB_C_MINMAX(min, 3000)
230 #define _PDCLIB_CXX_MIN(min) _PDCLIB_CXX_MINMAX(min, 3000)
231 #define _PDCLIB_XOPEN_MIN(min) _PDCLIB_XOPEN_MINMAX(min, 30000000)
232 #define _PDCLIB_POSIX_MIN(min) _PDCLIB_POSIX_MINMAX(min, 30000000)
233 #define _PDCLIB_C_MAX(max) _PDCLIB_C_MINMAX(0, max)
234 #define _PDCLIB_CXX_MAX(max) _PDCLIB_CXX_MINMAX(0, max)
235 #define _PDCLIB_XOPEN_MAX(max) _PDCLIB_XOPEN_MINMAX(0, max)
236 #define _PDCLIB_POSIX_MAX(max) _PDCLIB_POSIX_MINMAX(0, max)
237 #if defined(_PDCLIB_EXTENSIONS) || defined(_PDCLIB_BUILD)
238 #define _PDCLIB_C_MINMAX(min, max) 1
239 #define _PDCLIB_CXX_MINMAX(min, max) 1
240 #define _PDCLIB_POSIX_MINMAX(min, max) 1
241 #define _PDCLIB_XOPEN_MINMAX(min, max) 1
243 #undef _PDCLIB_EXTENSIONS
244 #undef _PDCLIB_BSD_SOURCE
245 #undef _PDCLIB_SVID_SOURCE
246 #undef _PDCLIB_GNU_SOURCE
248 #define _PDCLIB_EXTENSIONS 1
249 #define _PDCLIB_BSD_SOURCE 1
250 #define _PDCLIB_SVID_SOURCE 1
251 #define _PDCLIB_GNU_SOURCE 1
253 #define _PDCLIB_C_MINMAX(min, max) \
254 (_PDCLIB_C_VERSION >= (min) && _PDCLIB_C_VERSION <= (max))
255 #define _PDCLIB_CXX_MINMAX(min, max) \
256 (_PDCLIB_CXX_VERSION >= (min) && _PDCLIB_CXX_VERSION <= (max))
257 #define _PDCLIB_XOPEN_MINMAX(min, max) \
258 (defined(_XOPEN_SOURCE) \
259 && _XOPEN_SOURCE >= (min) && _XOPEN_SOURCE <= (max))
260 #define _PDCLIB_POSIX_MINMAX(min, max) \
261 (defined(_POSIX_C_SOURCE) \
262 && _POSIX_C_SOURCE >= (min) && _POSIX_C_SOURCE <= (max))
264 #if defined(_XOPEN_SOURCE) && (_XOPEN_SOURCE-1 == -1)
265 /* If _XOPEN_SOURCE is defined as empty, redefine here as zero */
267 #define _XOPEN_SOURCE 0
270 #if defined(_GNU_SOURCE)
271 #define _PDCLIB_GNU_SOURCE 1
272 #define _PDCLIB_SVID_SOURCE 1
273 #define _PDCLIB_BSD_SOURCE 1
275 #define _XOPEN_SOURCE 700
277 #define _PDCLIB_GNU_SOURCE 0
280 #if defined(_PDCLIB_BSD_SOURCE)
282 #elif defined(_BSD_SOURCE)
283 #define _PDCLIB_BSD_SOURCE 1
285 #define _PDCLIB_BSD_SOURCE 0
288 #if defined(_PDCLIB_SVID_SOURCE)
290 #elif defined(_SVID_SOURCE)
291 #define _PDCLIB_SVID_SOURCE 1
293 #define _PDCLIB_SVID_SOURCE 0
296 #if _PDCLIB_XOPEN_MIN(700) && !_PDCLIB_POSIX_MIN(200809L)
297 #undef _POSIX_C_SOURCE
298 #define _POSIX_C_SOURCE 2008098L
299 #elif _PDCLIB_XOPEN_MIN(600) && !_PDCLIB_POSIX_MIN(200112L)
300 #undef _POSIX_C_SOURCE
301 #define _POSIX_C_SOURCE 200112L
302 #elif _PDCLIB_XOPEN_MIN(0) && !_PDCLIB_POSIX_MIN(2)
303 #undef _POSIX_C_SOURCE
304 #define _POSIX_C_SOURCE 2
307 #if defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE)
308 #define _POSIX_C_SOURCE 1