6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #ifndef _SYS_FEATURE_TESTS_H
28 #define _SYS_FEATURE_TESTS_H
29
30 #include <sys/ccompile.h>
31 #include <sys/isa_defs.h>
32
33 #ifdef __cplusplus
34 extern "C" {
35 #endif
36
37 /*
38 * Values of _POSIX_C_SOURCE
39 *
40 * undefined not a POSIX compilation
41 * 1 POSIX.1-1990 compilation
42 * 2 POSIX.2-1992 compilation
43 * 199309L POSIX.1b-1993 compilation (Real Time)
44 * 199506L POSIX.1c-1995 compilation (POSIX Threads)
45 * 200112L POSIX.1-2001 compilation (Austin Group Revision)
46 */
47 #if defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE)
48 #define _POSIX_C_SOURCE 1
49 #endif
50
51 /*
52 * The feature test macros __XOPEN_OR_POSIX, _STRICT_STDC, and _STDC_C99
53 * are Sun implementation specific macros created in order to compress
54 * common standards specified feature test macros for easier reading.
55 * These macros should not be used by the application developer as
56 * unexpected results may occur. Instead, the user should reference
57 * standards(5) for correct usage of the standards feature test macros.
58 *
59 * __XOPEN_OR_POSIX Used in cases where a symbol is defined by both
60 * X/Open or POSIX or in the negative, when neither
61 * X/Open or POSIX defines a symbol.
62 *
63 * _STRICT_STDC __STDC__ is specified by the C Standards and defined
64 * by the compiler. For Sun compilers the value of
65 * __STDC__ is either 1, 0, or not defined based on the
66 * compilation mode (see cc(1)). When the value of
67 * __STDC__ is 1 and in the absence of any other feature
68 * test macros, the namespace available to the application
69 * is limited to only those symbols defined by the C
70 * Standard. _STRICT_STDC provides a more readable means
71 * of identifying symbols defined by the standard, or in
72 * the negative, symbols that are extensions to the C
73 * Standard. See additional comments for GNU C differences.
74 *
75 * _STDC_C99 __STDC_VERSION__ is specified by the C standards and
76 * defined by the compiler and indicates the version of
77 * the C standard. A value of 199901L indicates a
78 * compiler that complies with ISO/IEC 9899:1999, other-
79 * wise known as the C99 standard.
80 */
81
82 #if defined(_XOPEN_SOURCE) || defined(_POSIX_C_SOURCE)
83 #define __XOPEN_OR_POSIX
84 #endif
85
86 /*
87 * ISO/IEC 9899:1990 and it's revision, ISO/IEC 9899:1999 specify the
88 * following predefined macro name:
89 *
90 * __STDC__ The integer constant 1, intended to indicate a conforming
91 * implementation.
92 *
93 * Furthermore, a strictly conforming program shall use only those features
94 * of the language and library specified in these standards. A conforming
95 * implementation shall accept any strictly conforming program.
96 *
97 * Based on these requirements, Sun's C compiler defines __STDC__ to 1 for
98 * strictly conforming environments and __STDC__ to 0 for environments that
99 * use ANSI C semantics but allow extensions to the C standard. For non-ANSI
127 * interpretations to peacefully co-exist, we use the following Sun
128 * implementation _STRICT_STDC_ macro:
129 */
130
131 #if (__STDC__ - 0 == 1 && !defined(__GNUC__)) || \
132 (defined(__GNUC__) && defined(__STRICT_ANSI__))
133 #define _STRICT_STDC
134 #else
135 #undef _STRICT_STDC
136 #endif
137
138 /*
139 * Compiler complies with ISO/IEC 9899:1999
140 */
141
142 #if __STDC_VERSION__ - 0 >= 199901L
143 #define _STDC_C99
144 #endif
145
146 /*
147 * Large file interfaces:
148 *
149 * _LARGEFILE_SOURCE
150 * 1 large file-related additions to POSIX
151 * interfaces requested (fseeko, etc.)
152 * _LARGEFILE64_SOURCE
153 * 1 transitional large-file-related interfaces
154 * requested (seek64, stat64, etc.)
155 *
156 * The corresponding announcement macros are respectively:
157 * _LFS_LARGEFILE
158 * _LFS64_LARGEFILE
159 * (These are set in <unistd.h>.)
160 *
161 * Requesting _LARGEFILE64_SOURCE implies requesting _LARGEFILE_SOURCE as
162 * well.
163 *
164 * The large file interfaces are made visible regardless of the initial values
165 * of the feature test macros under certain circumstances:
166 * - If no explicit standards-conforming environment is requested (neither
205 #else /* _LP64 */
206 #ifndef _FILE_OFFSET_BITS
207 #define _FILE_OFFSET_BITS 32
208 #endif
209 #if _FILE_OFFSET_BITS - 0 != 32 && _FILE_OFFSET_BITS - 0 != 64
210 #error "invalid _FILE_OFFSET_BITS value specified"
211 #endif
212 #endif /* _LP64 */
213
214 /*
215 * Use of _XOPEN_SOURCE
216 *
217 * The following X/Open specifications are supported:
218 *
219 * X/Open Portability Guide, Issue 3 (XPG3)
220 * X/Open CAE Specification, Issue 4 (XPG4)
221 * X/Open CAE Specification, Issue 4, Version 2 (XPG4v2)
222 * X/Open CAE Specification, Issue 5 (XPG5)
223 * Open Group Technical Standard, Issue 6 (XPG6), also referred to as
224 * IEEE Std. 1003.1-2001 and ISO/IEC 9945:2002.
225 *
226 * XPG4v2 is also referred to as UNIX 95 (SUS or SUSv1).
227 * XPG5 is also referred to as UNIX 98 or the Single Unix Specification,
228 * Version 2 (SUSv2)
229 * XPG6 is the result of a merge of the X/Open and POSIX specifications
230 * and as such is also referred to as IEEE Std. 1003.1-2001 in
231 * addition to UNIX 03 and SUSv3.
232 *
233 * When writing a conforming X/Open application, as per the specification
234 * requirements, the appropriate feature test macros must be defined at
235 * compile time. These are as follows. For more info, see standards(5).
236 *
237 * Feature Test Macro Specification
238 * ------------------------------------------------ -------------
239 * _XOPEN_SOURCE XPG3
240 * _XOPEN_SOURCE && _XOPEN_VERSION = 4 XPG4
241 * _XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED = 1 XPG4v2
242 * _XOPEN_SOURCE = 500 XPG5
243 * _XOPEN_SOURCE = 600 (or POSIX_C_SOURCE=200112L) XPG6
244 *
245 * In order to simplify the guards within the headers, the following
246 * implementation private test macros have been created. Applications
247 * must NOT use these private test macros as unexpected results will
248 * occur.
249 *
250 * Note that in general, the use of these private macros is cumulative.
251 * For example, the use of _XPG3 with no other restrictions on the X/Open
252 * namespace will make the symbols visible for XPG3 through XPG6
253 * compilation environments. The use of _XPG4_2 with no other X/Open
254 * namespace restrictions indicates that the symbols were introduced in
255 * XPG4v2 and are therefore visible for XPG4v2 through XPG6 compilation
256 * environments, but not for XPG3 or XPG4 compilation environments.
257 *
258 * _XPG3 X/Open Portability Guide, Issue 3 (XPG3)
259 * _XPG4 X/Open CAE Specification, Issue 4 (XPG4)
260 * _XPG4_2 X/Open CAE Specification, Issue 4, Version 2 (XPG4v2/UNIX 95/SUS)
261 * _XPG5 X/Open CAE Specification, Issue 5 (XPG5/UNIX 98/SUSv2)
262 * _XPG6 Open Group Technical Standard, Issue 6 (XPG6/UNIX 03/SUSv3)
263 */
264
265 /* X/Open Portability Guide, Issue 3 */
266 #if defined(_XOPEN_SOURCE) && (_XOPEN_SOURCE - 0 < 500) && \
267 (_XOPEN_VERSION - 0 < 4) && !defined(_XOPEN_SOURCE_EXTENDED)
268 #define _XPG3
269 /* X/Open CAE Specification, Issue 4 */
270 #elif (defined(_XOPEN_SOURCE) && _XOPEN_VERSION - 0 == 4)
271 #define _XPG4
272 #define _XPG3
273 /* X/Open CAE Specification, Issue 4, Version 2 */
274 #elif (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE_EXTENDED - 0 == 1)
275 #define _XPG4_2
276 #define _XPG4
277 #define _XPG3
278 /* X/Open CAE Specification, Issue 5 */
279 #elif (_XOPEN_SOURCE - 0 == 500)
280 #define _XPG5
281 #define _XPG4_2
282 #define _XPG4
283 #define _XPG3
284 #undef _POSIX_C_SOURCE
285 #define _POSIX_C_SOURCE 199506L
286 /* Open Group Technical Standard , Issue 6 */
287 #elif (_XOPEN_SOURCE - 0 == 600) || (_POSIX_C_SOURCE - 0 == 200112L)
288 #define _XPG6
289 #define _XPG5
290 #define _XPG4_2
291 #define _XPG4
292 #define _XPG3
293 #undef _POSIX_C_SOURCE
294 #define _POSIX_C_SOURCE 200112L
295 #undef _XOPEN_SOURCE
296 #define _XOPEN_SOURCE 600
297 #endif
298
299 /*
300 * _XOPEN_VERSION is defined by the X/Open specifications and is not
301 * normally defined by the application, except in the case of an XPG4
302 * application. On the implementation side, _XOPEN_VERSION defined with
303 * the value of 3 indicates an XPG3 application. _XOPEN_VERSION defined
304 * with the value of 4 indicates an XPG4 or XPG4v2 (UNIX 95) application.
305 * _XOPEN_VERSION defined with a value of 500 indicates an XPG5 (UNIX 98)
306 * application and with a value of 600 indicates an XPG6 (UNIX 03)
307 * application. The appropriate version is determined by the use of the
308 * feature test macros described earlier. The value of _XOPEN_VERSION
309 * defaults to 3 otherwise indicating support for XPG3 applications.
310 */
311 #ifndef _XOPEN_VERSION
312 #ifdef _XPG6
313 #define _XOPEN_VERSION 600
314 #elif defined(_XPG5)
315 #define _XOPEN_VERSION 500
316 #elif defined(_XPG4_2)
317 #define _XOPEN_VERSION 4
318 #else
319 #define _XOPEN_VERSION 3
320 #endif
321 #endif
322
323 /*
324 * ANSI C and ISO 9899:1990 say the type long long doesn't exist in strictly
325 * conforming environments. ISO 9899:1999 says it does.
326 *
327 * The presence of _LONGLONG_TYPE says "long long exists" which is therefore
328 * defined in all but strictly conforming environments that disallow it.
329 */
330 #if !defined(_STDC_C99) && defined(_STRICT_STDC) && !defined(__GNUC__)
331 /*
332 * Resist attempts to force the definition of long long in this case.
|
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26 /*
27 * Copyright 2013 Garrett D'Amore <garrett@damore.org>
28 */
29
30 #ifndef _SYS_FEATURE_TESTS_H
31 #define _SYS_FEATURE_TESTS_H
32
33 #include <sys/ccompile.h>
34 #include <sys/isa_defs.h>
35
36 #ifdef __cplusplus
37 extern "C" {
38 #endif
39
40 /*
41 * Values of _POSIX_C_SOURCE
42 *
43 * undefined not a POSIX compilation
44 * 1 POSIX.1-1990 compilation
45 * 2 POSIX.2-1992 compilation
46 * 199309L POSIX.1b-1993 compilation (Real Time)
47 * 199506L POSIX.1c-1995 compilation (POSIX Threads)
48 * 200112L POSIX.1-2001 compilation (Austin Group Revision)
49 * 200809L POSIX.1-2008 compilation
50 */
51 #if defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE)
52 #define _POSIX_C_SOURCE 1
53 #endif
54
55 /*
56 * The feature test macros __XOPEN_OR_POSIX, _STRICT_STDC, _STRICT_SYMBOLS,
57 * and _STDC_C99 are Sun implementation specific macros created in order to
58 * compress common standards specified feature test macros for easier reading.
59 * These macros should not be used by the application developer as
60 * unexpected results may occur. Instead, the user should reference
61 * standards(5) for correct usage of the standards feature test macros.
62 *
63 * __XOPEN_OR_POSIX Used in cases where a symbol is defined by both
64 * X/Open or POSIX or in the negative, when neither
65 * X/Open or POSIX defines a symbol.
66 *
67 * _STRICT_STDC __STDC__ is specified by the C Standards and defined
68 * by the compiler. For Sun compilers the value of
69 * __STDC__ is either 1, 0, or not defined based on the
70 * compilation mode (see cc(1)). When the value of
71 * __STDC__ is 1 and in the absence of any other feature
72 * test macros, the namespace available to the application
73 * is limited to only those symbols defined by the C
74 * Standard. _STRICT_STDC provides a more readable means
75 * of identifying symbols defined by the standard, or in
76 * the negative, symbols that are extensions to the C
77 * Standard. See additional comments for GNU C differences.
78 *
79 * _STDC_C99 __STDC_VERSION__ is specified by the C standards and
80 * defined by the compiler and indicates the version of
81 * the C standard. A value of 199901L indicates a
82 * compiler that complies with ISO/IEC 9899:1999, other-
83 * wise known as the C99 standard.
84 *
85 * _STRICT_SYMBOLS Used in cases where symbol visibility is restricted
86 * by the standards, and the user has not explicitly
87 * relaxed the strictness via __EXTENSIONS__.
88 */
89
90 #if defined(_XOPEN_SOURCE) || defined(_POSIX_C_SOURCE)
91 #define __XOPEN_OR_POSIX
92 #endif
93
94 /*
95 * ISO/IEC 9899:1990 and it's revision, ISO/IEC 9899:1999 specify the
96 * following predefined macro name:
97 *
98 * __STDC__ The integer constant 1, intended to indicate a conforming
99 * implementation.
100 *
101 * Furthermore, a strictly conforming program shall use only those features
102 * of the language and library specified in these standards. A conforming
103 * implementation shall accept any strictly conforming program.
104 *
105 * Based on these requirements, Sun's C compiler defines __STDC__ to 1 for
106 * strictly conforming environments and __STDC__ to 0 for environments that
107 * use ANSI C semantics but allow extensions to the C standard. For non-ANSI
135 * interpretations to peacefully co-exist, we use the following Sun
136 * implementation _STRICT_STDC_ macro:
137 */
138
139 #if (__STDC__ - 0 == 1 && !defined(__GNUC__)) || \
140 (defined(__GNUC__) && defined(__STRICT_ANSI__))
141 #define _STRICT_STDC
142 #else
143 #undef _STRICT_STDC
144 #endif
145
146 /*
147 * Compiler complies with ISO/IEC 9899:1999
148 */
149
150 #if __STDC_VERSION__ - 0 >= 199901L
151 #define _STDC_C99
152 #endif
153
154 /*
155 * Use strict symbol visibility.
156 */
157 #if (defined(_STRICT_STDC) || defined(__XOPEN_OR_POSIX)) && \
158 !defined(__EXTENSIONS__)
159 #define _STRICT_SYMBOLS
160 #endif
161
162 /*
163 * Large file interfaces:
164 *
165 * _LARGEFILE_SOURCE
166 * 1 large file-related additions to POSIX
167 * interfaces requested (fseeko, etc.)
168 * _LARGEFILE64_SOURCE
169 * 1 transitional large-file-related interfaces
170 * requested (seek64, stat64, etc.)
171 *
172 * The corresponding announcement macros are respectively:
173 * _LFS_LARGEFILE
174 * _LFS64_LARGEFILE
175 * (These are set in <unistd.h>.)
176 *
177 * Requesting _LARGEFILE64_SOURCE implies requesting _LARGEFILE_SOURCE as
178 * well.
179 *
180 * The large file interfaces are made visible regardless of the initial values
181 * of the feature test macros under certain circumstances:
182 * - If no explicit standards-conforming environment is requested (neither
221 #else /* _LP64 */
222 #ifndef _FILE_OFFSET_BITS
223 #define _FILE_OFFSET_BITS 32
224 #endif
225 #if _FILE_OFFSET_BITS - 0 != 32 && _FILE_OFFSET_BITS - 0 != 64
226 #error "invalid _FILE_OFFSET_BITS value specified"
227 #endif
228 #endif /* _LP64 */
229
230 /*
231 * Use of _XOPEN_SOURCE
232 *
233 * The following X/Open specifications are supported:
234 *
235 * X/Open Portability Guide, Issue 3 (XPG3)
236 * X/Open CAE Specification, Issue 4 (XPG4)
237 * X/Open CAE Specification, Issue 4, Version 2 (XPG4v2)
238 * X/Open CAE Specification, Issue 5 (XPG5)
239 * Open Group Technical Standard, Issue 6 (XPG6), also referred to as
240 * IEEE Std. 1003.1-2001 and ISO/IEC 9945:2002.
241 * Open Group Technical Standard, Issue 7 (XPG7), also referred to as
242 * IEEE Std. 1003.1-2008 and ISO/IEC 9945:2009.
243 *
244 * XPG4v2 is also referred to as UNIX 95 (SUS or SUSv1).
245 * XPG5 is also referred to as UNIX 98 or the Single Unix Specification,
246 * Version 2 (SUSv2)
247 * XPG6 is the result of a merge of the X/Open and POSIX specifications
248 * and as such is also referred to as IEEE Std. 1003.1-2001 in
249 * addition to UNIX 03 and SUSv3.
250 * XPG7 is also referred to as UNIX 08 and SUSv4.
251 *
252 * When writing a conforming X/Open application, as per the specification
253 * requirements, the appropriate feature test macros must be defined at
254 * compile time. These are as follows. For more info, see standards(5).
255 *
256 * Feature Test Macro Specification
257 * ------------------------------------------------ -------------
258 * _XOPEN_SOURCE XPG3
259 * _XOPEN_SOURCE && _XOPEN_VERSION = 4 XPG4
260 * _XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED = 1 XPG4v2
261 * _XOPEN_SOURCE = 500 XPG5
262 * _XOPEN_SOURCE = 600 (or POSIX_C_SOURCE=200112L) XPG6
263 * _XOPEN_SOURCE = 700 (or POSIX_C_SOURCE=200809L) XPG7
264 *
265 * In order to simplify the guards within the headers, the following
266 * implementation private test macros have been created. Applications
267 * must NOT use these private test macros as unexpected results will
268 * occur.
269 *
270 * Note that in general, the use of these private macros is cumulative.
271 * For example, the use of _XPG3 with no other restrictions on the X/Open
272 * namespace will make the symbols visible for XPG3 through XPG6
273 * compilation environments. The use of _XPG4_2 with no other X/Open
274 * namespace restrictions indicates that the symbols were introduced in
275 * XPG4v2 and are therefore visible for XPG4v2 through XPG6 compilation
276 * environments, but not for XPG3 or XPG4 compilation environments.
277 *
278 * _XPG3 X/Open Portability Guide, Issue 3 (XPG3)
279 * _XPG4 X/Open CAE Specification, Issue 4 (XPG4)
280 * _XPG4_2 X/Open CAE Specification, Issue 4, Version 2 (XPG4v2/UNIX 95/SUS)
281 * _XPG5 X/Open CAE Specification, Issue 5 (XPG5/UNIX 98/SUSv2)
282 * _XPG6 Open Group Technical Standard, Issue 6 (XPG6/UNIX 03/SUSv3)
283 * _XPG7 Open Group Technical Standard, Issue 7 (XPG7/UNIX 08/SUSv4)
284 */
285
286 /* X/Open Portability Guide, Issue 3 */
287 #if defined(_XOPEN_SOURCE) && (_XOPEN_SOURCE - 0 < 500) && \
288 (_XOPEN_VERSION - 0 < 4) && !defined(_XOPEN_SOURCE_EXTENDED)
289 #define _XPG3
290 /* X/Open CAE Specification, Issue 4 */
291 #elif (defined(_XOPEN_SOURCE) && _XOPEN_VERSION - 0 == 4)
292 #define _XPG4
293 #define _XPG3
294 /* X/Open CAE Specification, Issue 4, Version 2 */
295 #elif (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE_EXTENDED - 0 == 1)
296 #define _XPG4_2
297 #define _XPG4
298 #define _XPG3
299 /* X/Open CAE Specification, Issue 5 */
300 #elif (_XOPEN_SOURCE - 0 == 500)
301 #define _XPG5
302 #define _XPG4_2
303 #define _XPG4
304 #define _XPG3
305 #undef _POSIX_C_SOURCE
306 #define _POSIX_C_SOURCE 199506L
307 /* Open Group Technical Standard , Issue 6 */
308 #elif (_XOPEN_SOURCE - 0 == 600) || (_POSIX_C_SOURCE - 0 == 200112L)
309 #define _XPG6
310 #define _XPG5
311 #define _XPG4_2
312 #define _XPG4
313 #define _XPG3
314 #undef _POSIX_C_SOURCE
315 #define _POSIX_C_SOURCE 200112L
316 #undef _XOPEN_SOURCE
317 #define _XOPEN_SOURCE 600
318
319 /* Open Group Technical Standard, Issue 7 */
320 #elif (_XOPEN_SOURCE - 0 == 700) || (_POSIX_C_SOURCE - 0 == 200809L)
321 #define _XPG7
322 #define _XPG6
323 #define _XPG5
324 #define _XPG4_2
325 #define _XPG4
326 #define _XPG3
327 #undef _POSIX_C_SOURCE
328 #define _POSIX_C_SOURCE 200809L
329 #undef _XOPEN_SOURCE
330 #define _XOPEN_SOURCE 700
331 #endif
332
333 /*
334 * _XOPEN_VERSION is defined by the X/Open specifications and is not
335 * normally defined by the application, except in the case of an XPG4
336 * application. On the implementation side, _XOPEN_VERSION defined with
337 * the value of 3 indicates an XPG3 application. _XOPEN_VERSION defined
338 * with the value of 4 indicates an XPG4 or XPG4v2 (UNIX 95) application.
339 * _XOPEN_VERSION defined with a value of 500 indicates an XPG5 (UNIX 98)
340 * application and with a value of 600 indicates an XPG6 (UNIX 03)
341 * application and with a value of 700 indicates an XPG7 (UNIX 08).
342 * The appropriate version is determined by the use of the
343 * feature test macros described earlier. The value of _XOPEN_VERSION
344 * defaults to 3 otherwise indicating support for XPG3 applications.
345 */
346 #ifndef _XOPEN_VERSION
347 #if defined(_XPG7)
348 #define _XOPEN_VERSION 700
349 #elif defined(_XPG6)
350 #define _XOPEN_VERSION 600
351 #elif defined(_XPG5)
352 #define _XOPEN_VERSION 500
353 #elif defined(_XPG4_2)
354 #define _XOPEN_VERSION 4
355 #else
356 #define _XOPEN_VERSION 3
357 #endif
358 #endif
359
360 /*
361 * ANSI C and ISO 9899:1990 say the type long long doesn't exist in strictly
362 * conforming environments. ISO 9899:1999 says it does.
363 *
364 * The presence of _LONGLONG_TYPE says "long long exists" which is therefore
365 * defined in all but strictly conforming environments that disallow it.
366 */
367 #if !defined(_STDC_C99) && defined(_STRICT_STDC) && !defined(__GNUC__)
368 /*
369 * Resist attempts to force the definition of long long in this case.
|