1 /// @ref core
2 /// @file glm/detail/setup.hpp
3 
4 #pragma once
5 
6 #if (defined(GLM_FORCE_SWIZZLE) || defined(GLM_SWIZZLE)) && defined(GLM_FORCE_UNRESTRICTED_GENTYPE)
7 #	error "Both GLM_FORCE_SWIZZLE and GLM_FORCE_UNRESTRICTED_GENTYPE can't be defined at the same time"
8 #endif
9 
10 ///////////////////////////////////////////////////////////////////////////////////
11 // Messages
12 
13 #ifdef GLM_MESSAGES
14 #	pragma message("GLM: GLM_MESSAGES is deprecated, use GLM_FORCE_MESSAGES instead")
15 #endif
16 
17 #define GLM_MESSAGES_ENABLED 1
18 #define GLM_MESSAGES_DISABLE 0
19 
20 #if defined(GLM_FORCE_MESSAGES) || defined(GLM_MESSAGES)
21 #	undef GLM_MESSAGES
22 #	define GLM_MESSAGES GLM_MESSAGES_ENABLED
23 #else
24 #	undef GLM_MESSAGES
25 #	define GLM_MESSAGES GLM_MESSAGES_DISABLE
26 #endif
27 
28 #include <cassert>
29 #include <cstddef>
30 #include "../simd/platform.h"
31 
32 ///////////////////////////////////////////////////////////////////////////////////
33 // Version
34 
35 #define GLM_VERSION					98
36 #define GLM_VERSION_MAJOR			0
37 #define GLM_VERSION_MINOR			9
38 #define GLM_VERSION_PATCH			8
39 #define GLM_VERSION_REVISION		4
40 
41 #if GLM_MESSAGES == GLM_MESSAGES_ENABLED && !defined(GLM_MESSAGE_VERSION_DISPLAYED)
42 #	define GLM_MESSAGE_VERSION_DISPLAYED
43 #	pragma message ("GLM: version 0.9.8.4")
44 #endif//GLM_MESSAGES
45 
46 // Report compiler detection
47 #if GLM_MESSAGES == GLM_MESSAGES_ENABLED && !defined(GLM_MESSAGE_COMPILER_DISPLAYED)
48 #	define GLM_MESSAGE_COMPILER_DISPLAYED
49 #	if GLM_COMPILER & GLM_COMPILER_CUDA
50 #		pragma message("GLM: CUDA compiler detected")
51 #	elif GLM_COMPILER & GLM_COMPILER_VC
52 #		pragma message("GLM: Visual C++ compiler detected")
53 #	elif GLM_COMPILER & GLM_COMPILER_CLANG
54 #		pragma message("GLM: Clang compiler detected")
55 #	elif GLM_COMPILER & GLM_COMPILER_INTEL
56 #		pragma message("GLM: Intel Compiler detected")
57 #	elif GLM_COMPILER & GLM_COMPILER_GCC
58 #		pragma message("GLM: GCC compiler detected")
59 #	else
60 #		pragma message("GLM: Compiler not detected")
61 #	endif
62 #endif//GLM_MESSAGES
63 
64 ///////////////////////////////////////////////////////////////////////////////////
65 // Build model
66 
67 #if defined(__arch64__) || defined(__LP64__) || defined(_M_X64) || defined(__ppc64__) || defined(__x86_64__)
68 #	define GLM_MODEL	GLM_MODEL_64
69 #elif defined(__i386__) || defined(__ppc__)
70 #	define GLM_MODEL	GLM_MODEL_32
71 #else
72 #	define GLM_MODEL	GLM_MODEL_32
73 #endif//
74 
75 #if !defined(GLM_MODEL) && GLM_COMPILER != 0
76 #	error "GLM_MODEL undefined, your compiler may not be supported by GLM. Add #define GLM_MODEL 0 to ignore this message."
77 #endif//GLM_MODEL
78 
79 #if GLM_MESSAGES == GLM_MESSAGES_ENABLED && !defined(GLM_MESSAGE_MODEL_DISPLAYED)
80 #	define GLM_MESSAGE_MODEL_DISPLAYED
81 #	if(GLM_MODEL == GLM_MODEL_64)
82 #		pragma message("GLM: 64 bits model")
83 #	elif(GLM_MODEL == GLM_MODEL_32)
84 #		pragma message("GLM: 32 bits model")
85 #	endif//GLM_MODEL
86 #endif//GLM_MESSAGES
87 
88 #if GLM_MESSAGES == GLM_MESSAGES_ENABLED && !defined(GLM_MESSAGE_ARCH_DISPLAYED)
89 #	define GLM_MESSAGE_ARCH_DISPLAYED
90 #	if(GLM_ARCH == GLM_ARCH_PURE)
91 #		pragma message("GLM: Platform independent code")
92 #	elif(GLM_ARCH == GLM_ARCH_AVX2)
93 #		pragma message("GLM: AVX2 instruction set")
94 #	elif(GLM_ARCH == GLM_ARCH_AVX)
95 #		pragma message("GLM: AVX instruction set")
96 #	elif(GLM_ARCH == GLM_ARCH_SSE42)
97 #		pragma message("GLM: SSE4.2 instruction set")
98 #	elif(GLM_ARCH == GLM_ARCH_SSE41)
99 #		pragma message("GLM: SSE4.1 instruction set")
100 #	elif(GLM_ARCH == GLM_ARCH_SSSE3)
101 #		pragma message("GLM: SSSE3 instruction set")
102 #	elif(GLM_ARCH == GLM_ARCH_SSE3)
103 #		pragma message("GLM: SSE3 instruction set")
104 #	elif(GLM_ARCH == GLM_ARCH_SSE2)
105 #		pragma message("GLM: SSE2 instruction set")
106 #	elif(GLM_ARCH == GLM_ARCH_X86)
107 #		pragma message("GLM: x86 instruction set")
108 #	elif(GLM_ARCH == GLM_ARCH_NEON)
109 #		pragma message("GLM: NEON instruction set")
110 #	elif(GLM_ARCH == GLM_ARCH_ARM)
111 #		pragma message("GLM: ARM instruction set")
112 #	elif(GLM_ARCH == GLM_ARCH_MIPS)
113 #		pragma message("GLM: MIPS instruction set")
114 #	elif(GLM_ARCH == GLM_ARCH_PPC)
115 #		pragma message("GLM: PowerPC architechture")
116 #	endif//GLM_ARCH
117 #endif//GLM_MESSAGES
118 
119 ///////////////////////////////////////////////////////////////////////////////////
120 // C++ Version
121 
122 // User defines: GLM_FORCE_CXX98, GLM_FORCE_CXX03, GLM_FORCE_CXX11, GLM_FORCE_CXX14
123 
124 #define GLM_LANG_CXX98_FLAG			(1 << 1)
125 #define GLM_LANG_CXX03_FLAG			(1 << 2)
126 #define GLM_LANG_CXX0X_FLAG			(1 << 3)
127 #define GLM_LANG_CXX11_FLAG			(1 << 4)
128 #define GLM_LANG_CXX1Y_FLAG			(1 << 5)
129 #define GLM_LANG_CXX14_FLAG			(1 << 6)
130 #define GLM_LANG_CXX1Z_FLAG			(1 << 7)
131 #define GLM_LANG_CXXMS_FLAG			(1 << 8)
132 #define GLM_LANG_CXXGNU_FLAG		(1 << 9)
133 
134 #define GLM_LANG_CXX98			GLM_LANG_CXX98_FLAG
135 #define GLM_LANG_CXX03			(GLM_LANG_CXX98 | GLM_LANG_CXX03_FLAG)
136 #define GLM_LANG_CXX0X			(GLM_LANG_CXX03 | GLM_LANG_CXX0X_FLAG)
137 #define GLM_LANG_CXX11			(GLM_LANG_CXX0X | GLM_LANG_CXX11_FLAG)
138 #define GLM_LANG_CXX1Y			(GLM_LANG_CXX11 | GLM_LANG_CXX1Y_FLAG)
139 #define GLM_LANG_CXX14			(GLM_LANG_CXX1Y | GLM_LANG_CXX14_FLAG)
140 #define GLM_LANG_CXX1Z			(GLM_LANG_CXX14 | GLM_LANG_CXX1Z_FLAG)
141 #define GLM_LANG_CXXMS			GLM_LANG_CXXMS_FLAG
142 #define GLM_LANG_CXXGNU			GLM_LANG_CXXGNU_FLAG
143 
144 #if defined(GLM_FORCE_CXX14)
145 #	if((GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER <= GLM_COMPILER_GCC50)) || ((GLM_COMPILER & GLM_COMPILER_CLANG) && (GLM_COMPILER <= GLM_COMPILER_CLANG34))
146 #			pragma message("GLM: Using GLM_FORCE_CXX14 with a compiler that doesn't fully support C++14")
147 #	elif GLM_COMPILER & GLM_COMPILER_VC
148 #			pragma message("GLM: Using GLM_FORCE_CXX14 but there is no known version of Visual C++ compiler that fully supports C++14")
149 #	elif GLM_COMPILER & GLM_COMPILER_INTEL
150 #			pragma message("GLM: Using GLM_FORCE_CXX14 but there is no known version of ICC compiler that fully supports C++14")
151 #	endif
152 #	define GLM_LANG GLM_LANG_CXX14
153 #	define GLM_LANG_STL11_FORCED
154 #elif defined(GLM_FORCE_CXX11)
155 #	if((GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER <= GLM_COMPILER_GCC48)) || ((GLM_COMPILER & GLM_COMPILER_CLANG) && (GLM_COMPILER <= GLM_COMPILER_CLANG33))
156 #			pragma message("GLM: Using GLM_FORCE_CXX11 with a compiler that doesn't fully support C++11")
157 #	elif GLM_COMPILER & GLM_COMPILER_VC
158 #			pragma message("GLM: Using GLM_FORCE_CXX11 but there is no known version of Visual C++ compiler that fully supports C++11")
159 #	elif GLM_COMPILER & GLM_COMPILER_INTEL
160 #			pragma message("GLM: Using GLM_FORCE_CXX11 but there is no known version of ICC compiler that fully supports C++11")
161 #	endif
162 #	define GLM_LANG GLM_LANG_CXX11
163 #	define GLM_LANG_STL11_FORCED
164 #elif defined(GLM_FORCE_CXX03)
165 #	define GLM_LANG GLM_LANG_CXX03
166 #elif defined(GLM_FORCE_CXX98)
167 #	define GLM_LANG GLM_LANG_CXX98
168 #else
169 #	if GLM_COMPILER & GLM_COMPILER_CLANG
170 #		if __cplusplus >= 201402L // GLM_COMPILER_CLANG34 + -std=c++14
171 #			define GLM_LANG GLM_LANG_CXX14
172 #		elif __has_feature(cxx_decltype_auto) && __has_feature(cxx_aggregate_nsdmi) // GLM_COMPILER_CLANG33 + -std=c++1y
173 #			define GLM_LANG GLM_LANG_CXX1Y
174 #		elif __cplusplus >= 201103L // GLM_COMPILER_CLANG33 + -std=c++11
175 #			define GLM_LANG GLM_LANG_CXX11
176 #		elif __has_feature(cxx_static_assert) // GLM_COMPILER_CLANG29 + -std=c++11
177 #			define GLM_LANG GLM_LANG_CXX0X
178 #		elif __cplusplus >= 199711L
179 #			define GLM_LANG GLM_LANG_CXX98
180 #		else
181 #			define GLM_LANG GLM_LANG_CXX
182 #		endif
183 #	elif GLM_COMPILER & GLM_COMPILER_GCC
184 #		if __cplusplus >= 201402L
185 #			define GLM_LANG GLM_LANG_CXX14
186 #		elif __cplusplus >= 201103L
187 #			define GLM_LANG GLM_LANG_CXX11
188 #		elif defined(__GXX_EXPERIMENTAL_CXX0X__)
189 #			define GLM_LANG GLM_LANG_CXX0X
190 #		else
191 #			define GLM_LANG GLM_LANG_CXX98
192 #		endif
193 #	elif GLM_COMPILER & GLM_COMPILER_VC
194 #		ifdef _MSC_EXTENSIONS
195 #			if __cplusplus >= 201402L
196 #				define GLM_LANG (GLM_LANG_CXX14 | GLM_LANG_CXXMS_FLAG)
197 //#			elif GLM_COMPILER >= GLM_COMPILER_VC14
198 //#				define GLM_LANG (GLM_LANG_CXX1Y | GLM_LANG_CXXMS_FLAG)
199 #			elif __cplusplus >= 201103L
200 #				define GLM_LANG (GLM_LANG_CXX11 | GLM_LANG_CXXMS_FLAG)
201 #			elif GLM_COMPILER >= GLM_COMPILER_VC10
202 #				define GLM_LANG (GLM_LANG_CXX0X | GLM_LANG_CXXMS_FLAG)
203 #			elif __cplusplus >= 199711L
204 #				define GLM_LANG (GLM_LANG_CXX98 | GLM_LANG_CXXMS_FLAG)
205 #			else
206 #				define GLM_LANG (GLM_LANG_CXX | GLM_LANG_CXXMS_FLAG)
207 #			endif
208 #		else
209 #			if __cplusplus >= 201402L
210 #				define GLM_LANG GLM_LANG_CXX14
211 #			elif __cplusplus >= 201103L
212 #				define GLM_LANG GLM_LANG_CXX11
213 #			elif GLM_COMPILER >= GLM_COMPILER_VC10
214 #				define GLM_LANG GLM_LANG_CXX0X
215 #			elif __cplusplus >= 199711L
216 #				define GLM_LANG GLM_LANG_CXX98
217 #			else
218 #				define GLM_LANG GLM_LANG_CXX
219 #			endif
220 #		endif
221 #	elif GLM_COMPILER & GLM_COMPILER_INTEL
222 #		ifdef _MSC_EXTENSIONS
223 #			define GLM_MSC_EXT GLM_LANG_CXXMS_FLAG
224 #		else
225 #			define GLM_MSC_EXT 0
226 #		endif
227 #		if __cplusplus >= 201402L
228 #			define GLM_LANG (GLM_LANG_CXX14 | GLM_MSC_EXT)
229 #		elif __cplusplus >= 201103L
230 #			define GLM_LANG (GLM_LANG_CXX11 | GLM_MSC_EXT)
231 #		elif __INTEL_CXX11_MODE__
232 #			define GLM_LANG (GLM_LANG_CXX0X | GLM_MSC_EXT)
233 #		elif __cplusplus >= 199711L
234 #			define GLM_LANG (GLM_LANG_CXX98 | GLM_MSC_EXT)
235 #		else
236 #			define GLM_LANG (GLM_LANG_CXX | GLM_MSC_EXT)
237 #		endif
238 #	elif GLM_COMPILER & GLM_COMPILER_CUDA
239 #		ifdef _MSC_EXTENSIONS
240 #			define GLM_MSC_EXT GLM_LANG_CXXMS_FLAG
241 #		else
242 #			define GLM_MSC_EXT 0
243 #		endif
244 #		if GLM_COMPILER >= GLM_COMPILER_CUDA75
245 #			define GLM_LANG (GLM_LANG_CXX0X | GLM_MSC_EXT)
246 #		else
247 #			define GLM_LANG (GLM_LANG_CXX98 | GLM_MSC_EXT)
248 #		endif
249 #	else // Unknown compiler
250 #		if __cplusplus >= 201402L
251 #			define GLM_LANG GLM_LANG_CXX14
252 #		elif __cplusplus >= 201103L
253 #			define GLM_LANG GLM_LANG_CXX11
254 #		elif __cplusplus >= 199711L
255 #			define GLM_LANG GLM_LANG_CXX98
256 #		else
257 #			define GLM_LANG GLM_LANG_CXX // Good luck with that!
258 #		endif
259 #		ifndef GLM_FORCE_PURE
260 #			define GLM_FORCE_PURE
261 #		endif
262 #	endif
263 #endif
264 
265 #if GLM_MESSAGES == GLM_MESSAGES_ENABLED && !defined(GLM_MESSAGE_LANG_DISPLAYED)
266 #	define GLM_MESSAGE_LANG_DISPLAYED
267 
268 #	if GLM_LANG & GLM_LANG_CXX1Z_FLAG
269 #		pragma message("GLM: C++1z")
270 #	elif GLM_LANG & GLM_LANG_CXX14_FLAG
271 #		pragma message("GLM: C++14")
272 #	elif GLM_LANG & GLM_LANG_CXX1Y_FLAG
273 #		pragma message("GLM: C++1y")
274 #	elif GLM_LANG & GLM_LANG_CXX11_FLAG
275 #		pragma message("GLM: C++11")
276 #	elif GLM_LANG & GLM_LANG_CXX0X_FLAG
277 #		pragma message("GLM: C++0x")
278 #	elif GLM_LANG & GLM_LANG_CXX03_FLAG
279 #		pragma message("GLM: C++03")
280 #	elif GLM_LANG & GLM_LANG_CXX98_FLAG
281 #		pragma message("GLM: C++98")
282 #	else
283 #		pragma message("GLM: C++ language undetected")
284 #	endif//GLM_LANG
285 
286 #	if GLM_LANG & (GLM_LANG_CXXGNU_FLAG | GLM_LANG_CXXMS_FLAG)
287 #		pragma message("GLM: Language extensions enabled")
288 #	endif//GLM_LANG
289 #endif//GLM_MESSAGES
290 
291 ///////////////////////////////////////////////////////////////////////////////////
292 // Has of C++ features
293 
294 // http://clang.llvm.org/cxx_status.html
295 // http://gcc.gnu.org/projects/cxx0x.html
296 // http://msdn.microsoft.com/en-us/library/vstudio/hh567368(v=vs.120).aspx
297 
298 // Android has multiple STLs but C++11 STL detection doesn't always work #284 #564
299 #if GLM_PLATFORM == GLM_PLATFORM_ANDROID && !defined(GLM_LANG_STL11_FORCED)
300 #	define GLM_HAS_CXX11_STL 0
301 #elif GLM_COMPILER & GLM_COMPILER_CLANG
302 #	if (defined(_LIBCPP_VERSION) && GLM_LANG & GLM_LANG_CXX11_FLAG) || defined(GLM_LANG_STL11_FORCED)
303 #		define GLM_HAS_CXX11_STL 1
304 #	else
305 #		define GLM_HAS_CXX11_STL 0
306 #	endif
307 #else
308 #	define GLM_HAS_CXX11_STL ((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (\
309 		((GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC48)) || \
310 		((GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC12)) || \
311 		((GLM_PLATFORM != GLM_PLATFORM_WINDOWS) && (GLM_COMPILER & GLM_COMPILER_INTEL) && (GLM_COMPILER >= GLM_COMPILER_INTEL15))))
312 #endif
313 
314 // N1720
315 #if GLM_COMPILER & GLM_COMPILER_CLANG
316 #	define GLM_HAS_STATIC_ASSERT __has_feature(cxx_static_assert)
317 #elif GLM_LANG & GLM_LANG_CXX11_FLAG
318 #	define GLM_HAS_STATIC_ASSERT 1
319 #else
320 #	define GLM_HAS_STATIC_ASSERT ((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (\
321 		((GLM_COMPILER & GLM_COMPILER_GCC)) || \
322 		((GLM_COMPILER & GLM_COMPILER_CUDA)) || \
323 		((GLM_COMPILER & GLM_COMPILER_VC))))
324 #endif
325 
326 // N1988
327 #if GLM_LANG & GLM_LANG_CXX11_FLAG
328 #	define GLM_HAS_EXTENDED_INTEGER_TYPE 1
329 #else
330 #	define GLM_HAS_EXTENDED_INTEGER_TYPE (\
331 		((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC11)) || \
332 		((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (GLM_COMPILER & GLM_COMPILER_CUDA)) || \
333 		((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (GLM_COMPILER & GLM_COMPILER_GCC)) || \
334 		((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (GLM_COMPILER & GLM_COMPILER_CLANG)))
335 #endif
336 
337 // N2235
338 #if GLM_COMPILER & GLM_COMPILER_CLANG
339 #	define GLM_HAS_CONSTEXPR __has_feature(cxx_constexpr)
340 #	define GLM_HAS_CONSTEXPR_PARTIAL GLM_HAS_CONSTEXPR
341 #elif GLM_LANG & GLM_LANG_CXX11_FLAG
342 #	define GLM_HAS_CONSTEXPR 1
343 #	define GLM_HAS_CONSTEXPR_PARTIAL GLM_HAS_CONSTEXPR
344 #else
345 #	define GLM_HAS_CONSTEXPR ((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (\
346 		((GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC15)) || \
347 		((GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC48)))) // GCC 4.6 support constexpr but there is a compiler bug causing a crash
348 #	define GLM_HAS_CONSTEXPR_PARTIAL (GLM_HAS_CONSTEXPR || ((GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC14)))
349 #endif
350 
351 // N2672
352 #if GLM_COMPILER & GLM_COMPILER_CLANG
353 #	define GLM_HAS_INITIALIZER_LISTS __has_feature(cxx_generalized_initializers)
354 #elif GLM_LANG & GLM_LANG_CXX11_FLAG
355 #	define GLM_HAS_INITIALIZER_LISTS 1
356 #else
357 #	define GLM_HAS_INITIALIZER_LISTS ((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (\
358 		((GLM_COMPILER & GLM_COMPILER_GCC)) || \
359 		((GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC12)) || \
360 		((GLM_COMPILER & GLM_COMPILER_CUDA) && (GLM_COMPILER >= GLM_COMPILER_CUDA75))))
361 #endif
362 
363 // N2544 Unrestricted unions http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2544.pdf
364 #if GLM_COMPILER & GLM_COMPILER_CLANG
365 #	define GLM_HAS_UNRESTRICTED_UNIONS __has_feature(cxx_unrestricted_unions)
366 #elif GLM_LANG & (GLM_LANG_CXX11_FLAG | GLM_LANG_CXXMS_FLAG)
367 #	define GLM_HAS_UNRESTRICTED_UNIONS 1
368 #else
369 #	define GLM_HAS_UNRESTRICTED_UNIONS (GLM_LANG & GLM_LANG_CXX0X_FLAG) && (\
370 		((GLM_COMPILER & GLM_COMPILER_VC) && (GLM_LANG & GLM_LANG_CXXMS_FLAG)) || \
371 		((GLM_COMPILER & GLM_COMPILER_CUDA) && (GLM_COMPILER >= GLM_COMPILER_CUDA75)) || \
372 		((GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC46)))
373 #endif
374 
375 // N2346
376 #if defined(GLM_FORCE_UNRESTRICTED_GENTYPE)
377 #	define GLM_HAS_DEFAULTED_FUNCTIONS 0
378 #elif GLM_COMPILER & GLM_COMPILER_CLANG
379 #	define GLM_HAS_DEFAULTED_FUNCTIONS __has_feature(cxx_defaulted_functions)
380 #elif GLM_LANG & GLM_LANG_CXX11_FLAG
381 #	define GLM_HAS_DEFAULTED_FUNCTIONS 1
382 #else
383 #	define GLM_HAS_DEFAULTED_FUNCTIONS ((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (\
384 		((GLM_COMPILER & GLM_COMPILER_GCC)) || \
385 		((GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC12)) || \
386 		((GLM_COMPILER & GLM_COMPILER_INTEL) && (GLM_COMPILER >= GLM_COMPILER_INTEL12)) || \
387 		(GLM_COMPILER & GLM_COMPILER_CUDA)))
388 #endif
389 
390 // N2118
391 #if GLM_COMPILER & GLM_COMPILER_CLANG
392 #	define GLM_HAS_RVALUE_REFERENCES __has_feature(cxx_rvalue_references)
393 #elif GLM_LANG & GLM_LANG_CXX11_FLAG
394 #	define GLM_HAS_RVALUE_REFERENCES 1
395 #else
396 #	define GLM_HAS_RVALUE_REFERENCES ((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (\
397 		((GLM_COMPILER & GLM_COMPILER_GCC)) || \
398 		((GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC11)) || \
399 		((GLM_COMPILER & GLM_COMPILER_CUDA) && (GLM_COMPILER >= GLM_COMPILER_CUDA50))))
400 #endif
401 
402 // N2437 http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2437.pdf
403 #if GLM_COMPILER & GLM_COMPILER_CLANG
404 #	define GLM_HAS_EXPLICIT_CONVERSION_OPERATORS __has_feature(cxx_explicit_conversions)
405 #elif GLM_LANG & GLM_LANG_CXX11_FLAG
406 #	define GLM_HAS_EXPLICIT_CONVERSION_OPERATORS 1
407 #else
408 #	define GLM_HAS_EXPLICIT_CONVERSION_OPERATORS ((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (\
409 		((GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC45)) || \
410 		((GLM_COMPILER & GLM_COMPILER_INTEL) && (GLM_COMPILER >= GLM_COMPILER_INTEL14)) || \
411 		((GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC12)) || \
412 		((GLM_COMPILER & GLM_COMPILER_CUDA) && (GLM_COMPILER >= GLM_COMPILER_CUDA50))))
413 #endif
414 
415 // N2258 http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2258.pdf
416 #if GLM_COMPILER & GLM_COMPILER_CLANG
417 #	define GLM_HAS_TEMPLATE_ALIASES __has_feature(cxx_alias_templates)
418 #elif GLM_LANG & GLM_LANG_CXX11_FLAG
419 #	define GLM_HAS_TEMPLATE_ALIASES 1
420 #else
421 #	define GLM_HAS_TEMPLATE_ALIASES ((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (\
422 		((GLM_COMPILER & GLM_COMPILER_INTEL) && (GLM_COMPILER >= GLM_COMPILER_INTEL12_1)) || \
423 		((GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC47)) || \
424 		((GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC12)) || \
425 		((GLM_COMPILER & GLM_COMPILER_CUDA) && (GLM_COMPILER >= GLM_COMPILER_CUDA50))))
426 #endif
427 
428 // N2930 http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2009/n2930.html
429 #if GLM_COMPILER & GLM_COMPILER_CLANG
430 #	define GLM_HAS_RANGE_FOR __has_feature(cxx_range_for)
431 #elif GLM_LANG & GLM_LANG_CXX11_FLAG
432 #	define GLM_HAS_RANGE_FOR 1
433 #else
434 #	define GLM_HAS_RANGE_FOR ((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (\
435 		((GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC46)) || \
436 		((GLM_COMPILER & GLM_COMPILER_INTEL) && (GLM_COMPILER >= GLM_COMPILER_INTEL13)) || \
437 		((GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC11)) || \
438 		((GLM_COMPILER & GLM_COMPILER_CUDA) && (GLM_COMPILER >= GLM_COMPILER_CUDA50))))
439 #endif
440 
441 // N2341 http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2341.pdf
442 #if GLM_COMPILER & GLM_COMPILER_CLANG
443 #	define GLM_HAS_ALIGNOF __has_feature(c_alignof)
444 #elif GLM_LANG & GLM_LANG_CXX11_FLAG
445 #	define GLM_HAS_ALIGNOF 1
446 #else
447 #	define GLM_HAS_ALIGNOF ((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (\
448 		((GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC48)) || \
449 		((GLM_COMPILER & GLM_COMPILER_INTEL) && (GLM_COMPILER >= GLM_COMPILER_INTEL15)) || \
450 		((GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC14)) || \
451 		((GLM_COMPILER & GLM_COMPILER_CUDA) && (GLM_COMPILER >= GLM_COMPILER_CUDA70))))
452 #endif
453 
454 #define GLM_HAS_ONLY_XYZW ((GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER < GLM_COMPILER_GCC46))
455 #if GLM_HAS_ONLY_XYZW
456 #	pragma message("GLM: GCC older than 4.6 has a bug presenting the use of rgba and stpq components")
457 #endif
458 
459 //
460 #if GLM_LANG & GLM_LANG_CXX11_FLAG
461 #	define GLM_HAS_ASSIGNABLE 1
462 #else
463 #	define GLM_HAS_ASSIGNABLE ((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (\
464 		((GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC15)) || \
465 		((GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC49))))
466 #endif
467 
468 //
469 #define GLM_HAS_TRIVIAL_QUERIES 0
470 
471 //
472 #if GLM_LANG & GLM_LANG_CXX11_FLAG
473 #	define GLM_HAS_MAKE_SIGNED 1
474 #else
475 #	define GLM_HAS_MAKE_SIGNED ((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (\
476 		((GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC12)) || \
477 		((GLM_COMPILER & GLM_COMPILER_CUDA) && (GLM_COMPILER >= GLM_COMPILER_CUDA50))))
478 #endif
479 
480 #if GLM_ARCH == GLM_ARCH_PURE
481 #	define GLM_HAS_BITSCAN_WINDOWS 0
482 #else
483 #	define GLM_HAS_BITSCAN_WINDOWS ((GLM_PLATFORM & GLM_PLATFORM_WINDOWS) && (\
484 		((GLM_COMPILER & GLM_COMPILER_INTEL)) || \
485 		((GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC14) && (GLM_ARCH & GLM_ARCH_X86_BIT))))
486 #endif
487 
488 // OpenMP
489 #ifdef _OPENMP
490 #	if GLM_COMPILER & GLM_COMPILER_GCC
491 #		if GLM_COMPILER >= GLM_COMPILER_GCC61
492 #			define GLM_HAS_OPENMP 45
493 #		elif GLM_COMPILER >= GLM_COMPILER_GCC49
494 #			define GLM_HAS_OPENMP 40
495 #		elif GLM_COMPILER >= GLM_COMPILER_GCC47
496 #			define GLM_HAS_OPENMP 31
497 #		elif GLM_COMPILER >= GLM_COMPILER_GCC44
498 #			define GLM_HAS_OPENMP 30
499 #		elif GLM_COMPILER >= GLM_COMPILER_GCC42
500 #			define GLM_HAS_OPENMP 25
501 #		else
502 #			define GLM_HAS_OPENMP 0
503 #		endif
504 #	elif GLM_COMPILER & GLM_COMPILER_CLANG
505 #		if GLM_COMPILER >= GLM_COMPILER_CLANG38
506 #			define GLM_HAS_OPENMP 31
507 #		else
508 #			define GLM_HAS_OPENMP 0
509 #		endif
510 #	elif GLM_COMPILER & GLM_COMPILER_VC
511 #		if GLM_COMPILER >= GLM_COMPILER_VC10
512 #			define GLM_HAS_OPENMP 20
513 #		else
514 #			define GLM_HAS_OPENMP 0
515 #		endif
516 #	elif GLM_COMPILER & GLM_COMPILER_INTEL
517 #		if GLM_COMPILER >= GLM_COMPILER_INTEL16
518 #			define GLM_HAS_OPENMP 40
519 #		elif GLM_COMPILER >= GLM_COMPILER_INTEL12
520 #			define GLM_HAS_OPENMP 31
521 #		else
522 #			define GLM_HAS_OPENMP 0
523 #		endif
524 #	else
525 #		define GLM_HAS_OPENMP 0
526 #	endif// GLM_COMPILER & GLM_COMPILER_VC
527 #endif
528 
529 ///////////////////////////////////////////////////////////////////////////////////
530 // Static assert
531 
532 #if GLM_HAS_STATIC_ASSERT
533 #	define GLM_STATIC_ASSERT(x, message) static_assert(x, message)
534 #elif defined(BOOST_STATIC_ASSERT)
535 #	define GLM_STATIC_ASSERT(x, message) BOOST_STATIC_ASSERT(x)
536 #elif GLM_COMPILER & GLM_COMPILER_VC
537 #	define GLM_STATIC_ASSERT(x, message) typedef char __CASSERT__##__LINE__[(x) ? 1 : -1]
538 #else
539 #	define GLM_STATIC_ASSERT(x, message)
540 #	define GLM_STATIC_ASSERT_NULL
541 #endif//GLM_LANG
542 
543 ///////////////////////////////////////////////////////////////////////////////////
544 // Qualifiers
545 
546 #if GLM_COMPILER & GLM_COMPILER_CUDA
547 #	define GLM_CUDA_FUNC_DEF __device__ __host__
548 #	define GLM_CUDA_FUNC_DECL __device__ __host__
549 #else
550 #	define GLM_CUDA_FUNC_DEF
551 #	define GLM_CUDA_FUNC_DECL
552 #endif
553 
554 #if GLM_COMPILER & GLM_COMPILER_GCC
555 #	define GLM_VAR_USED __attribute__ ((unused))
556 #else
557 #	define GLM_VAR_USED
558 #endif
559 
560 #if defined(GLM_FORCE_INLINE)
561 #	if GLM_COMPILER & GLM_COMPILER_VC
562 #		define GLM_INLINE __forceinline
563 #		define GLM_NEVER_INLINE __declspec((noinline))
564 #	elif GLM_COMPILER & (GLM_COMPILER_GCC | GLM_COMPILER_CLANG)
565 #		define GLM_INLINE inline __attribute__((__always_inline__))
566 #		define GLM_NEVER_INLINE __attribute__((__noinline__))
567 #	elif GLM_COMPILER & GLM_COMPILER_CUDA
568 #		define GLM_INLINE __forceinline__
569 #		define GLM_NEVER_INLINE __noinline__
570 #	else
571 #		define GLM_INLINE inline
572 #		define GLM_NEVER_INLINE
573 #	endif//GLM_COMPILER
574 #else
575 #	define GLM_INLINE inline
576 #	define GLM_NEVER_INLINE
577 #endif//defined(GLM_FORCE_INLINE)
578 
579 #define GLM_FUNC_DECL GLM_CUDA_FUNC_DECL
580 #define GLM_FUNC_QUALIFIER GLM_CUDA_FUNC_DEF GLM_INLINE
581 
582 ///////////////////////////////////////////////////////////////////////////////////
583 // Swizzle operators
584 
585 // User defines: GLM_FORCE_SWIZZLE
586 
587 #ifdef GLM_SWIZZLE
588 #	pragma message("GLM: GLM_SWIZZLE is deprecated, use GLM_FORCE_SWIZZLE instead")
589 #endif
590 
591 #define GLM_SWIZZLE_ENABLED 1
592 #define GLM_SWIZZLE_DISABLE 0
593 
594 #if defined(GLM_FORCE_SWIZZLE) || defined(GLM_SWIZZLE)
595 #	undef GLM_SWIZZLE
596 #	define GLM_SWIZZLE GLM_SWIZZLE_ENABLED
597 #else
598 #	undef GLM_SWIZZLE
599 #	define GLM_SWIZZLE GLM_SWIZZLE_DISABLE
600 #endif
601 
602 #if GLM_MESSAGES == GLM_MESSAGES_ENABLED && !defined(GLM_MESSAGE_SWIZZLE_DISPLAYED)
603 #	define GLM_MESSAGE_SWIZZLE_DISPLAYED
604 #	if GLM_SWIZZLE == GLM_SWIZZLE_ENABLED
605 #		pragma message("GLM: Swizzling operators enabled")
606 #	else
607 #		pragma message("GLM: Swizzling operators disabled, #define GLM_SWIZZLE to enable swizzle operators")
608 #	endif
609 #endif//GLM_MESSAGES
610 
611 ///////////////////////////////////////////////////////////////////////////////////
612 // Allows using not basic types as genType
613 
614 // #define GLM_FORCE_UNRESTRICTED_GENTYPE
615 
616 #ifdef GLM_FORCE_UNRESTRICTED_GENTYPE
617 #	define GLM_UNRESTRICTED_GENTYPE 1
618 #else
619 #	define GLM_UNRESTRICTED_GENTYPE 0
620 #endif
621 
622 #if GLM_MESSAGES == GLM_MESSAGES_ENABLED && !defined(GLM_MESSAGE_UNRESTRICTED_GENTYPE_DISPLAYED)
623 #	define GLM_MESSAGE_UNRESTRICTED_GENTYPE_DISPLAYED
624 #	ifdef GLM_FORCE_UNRESTRICTED_GENTYPE
625 #		pragma message("GLM: Use unrestricted genType")
626 #	endif
627 #endif//GLM_MESSAGES
628 
629 ///////////////////////////////////////////////////////////////////////////////////
630 // Clip control
631 
632 #ifdef GLM_DEPTH_ZERO_TO_ONE // Legacy 0.9.8 development
633 #	error Define GLM_FORCE_DEPTH_ZERO_TO_ONE instead of GLM_DEPTH_ZERO_TO_ONE to use 0 to 1 clip space.
634 #endif
635 
636 #define GLM_DEPTH_ZERO_TO_ONE				0x00000001
637 #define GLM_DEPTH_NEGATIVE_ONE_TO_ONE		0x00000002
638 
639 #ifdef GLM_FORCE_DEPTH_ZERO_TO_ONE
640 #	define GLM_DEPTH_CLIP_SPACE GLM_DEPTH_ZERO_TO_ONE
641 #else
642 #	define GLM_DEPTH_CLIP_SPACE GLM_DEPTH_NEGATIVE_ONE_TO_ONE
643 #endif
644 
645 #if GLM_MESSAGES == GLM_MESSAGES_ENABLED && !defined(GLM_MESSAGE_DEPTH_DISPLAYED)
646 #	define GLM_MESSAGE_DEPTH_DISPLAYED
647 #	if GLM_DEPTH_CLIP_SPACE == GLM_DEPTH_ZERO_TO_ONE
648 #		pragma message("GLM: Depth clip space: Zero to one")
649 #	else
650 #		pragma message("GLM: Depth clip space: negative one to one")
651 #	endif
652 #endif//GLM_MESSAGES
653 
654 ///////////////////////////////////////////////////////////////////////////////////
655 // Coordinate system, define GLM_FORCE_LEFT_HANDED before including GLM
656 // to use left handed coordinate system by default.
657 
658 #ifdef GLM_LEFT_HANDED // Legacy 0.9.8 development
659 #	error Define GLM_FORCE_LEFT_HANDED instead of GLM_LEFT_HANDED left handed coordinate system by default.
660 #endif
661 
662 #define GLM_LEFT_HANDED				0x00000001	// For DirectX, Metal, Vulkan
663 #define GLM_RIGHT_HANDED			0x00000002	// For OpenGL, default in GLM
664 
665 #ifdef GLM_FORCE_LEFT_HANDED
666 #	define GLM_COORDINATE_SYSTEM GLM_LEFT_HANDED
667 #else
668 #	define GLM_COORDINATE_SYSTEM GLM_RIGHT_HANDED
669 #endif
670 
671 #if GLM_MESSAGES == GLM_MESSAGES_ENABLED && !defined(GLM_MESSAGE_HANDED_DISPLAYED)
672 #	define GLM_MESSAGE_HANDED_DISPLAYED
673 #	if GLM_COORDINATE_SYSTEM == GLM_LEFT_HANDED
674 #		pragma message("GLM: Coordinate system: left handed")
675 #	else
676 #		pragma message("GLM: Coordinate system: right handed")
677 #	endif
678 #endif//GLM_MESSAGES
679 
680 ///////////////////////////////////////////////////////////////////////////////////
681 // Qualifiers
682 
683 #if (GLM_COMPILER & GLM_COMPILER_VC) || ((GLM_COMPILER & GLM_COMPILER_INTEL) && (GLM_PLATFORM & GLM_PLATFORM_WINDOWS))
684 #	define GLM_DEPRECATED __declspec(deprecated)
685 #	define GLM_ALIGN(x) __declspec(align(x))
686 #	define GLM_ALIGNED_STRUCT(x) struct __declspec(align(x))
687 #	define GLM_ALIGNED_TYPEDEF(type, name, alignment) typedef __declspec(align(alignment)) type name
688 #	define GLM_RESTRICT_FUNC __declspec(restrict)
689 #	define GLM_RESTRICT __restrict
690 #	if GLM_COMPILER >= GLM_COMPILER_VC12
691 #		define GLM_VECTOR_CALL __vectorcall
692 #	else
693 #		define GLM_VECTOR_CALL
694 #	endif
695 #elif GLM_COMPILER & (GLM_COMPILER_GCC | GLM_COMPILER_CLANG | GLM_COMPILER_INTEL)
696 #	define GLM_DEPRECATED __attribute__((__deprecated__))
697 #	define GLM_ALIGN(x) __attribute__((aligned(x)))
698 #	define GLM_ALIGNED_STRUCT(x) struct __attribute__((aligned(x)))
699 #	define GLM_ALIGNED_TYPEDEF(type, name, alignment) typedef type name __attribute__((aligned(alignment)))
700 #	define GLM_RESTRICT_FUNC __restrict__
701 #	define GLM_RESTRICT __restrict__
702 #	if GLM_COMPILER & GLM_COMPILER_CLANG
703 #		if GLM_COMPILER >= GLM_COMPILER_CLANG37
704 #			define GLM_VECTOR_CALL __vectorcall
705 #		else
706 #			define GLM_VECTOR_CALL
707 #		endif
708 #	else
709 #		define GLM_VECTOR_CALL
710 #	endif
711 #elif GLM_COMPILER & GLM_COMPILER_CUDA
712 #	define GLM_DEPRECATED
713 #	define GLM_ALIGN(x) __align__(x)
714 #	define GLM_ALIGNED_STRUCT(x) struct __align__(x)
715 #	define GLM_ALIGNED_TYPEDEF(type, name, alignment) typedef type name __align__(x)
716 #	define GLM_RESTRICT_FUNC __restrict__
717 #	define GLM_RESTRICT __restrict__
718 #	define GLM_VECTOR_CALL
719 #else
720 #	define GLM_DEPRECATED
721 #	define GLM_ALIGN
722 #	define GLM_ALIGNED_STRUCT(x) struct
723 #	define GLM_ALIGNED_TYPEDEF(type, name, alignment) typedef type name
724 #	define GLM_RESTRICT_FUNC
725 #	define GLM_RESTRICT
726 #	define GLM_VECTOR_CALL
727 #endif//GLM_COMPILER
728 
729 #if GLM_HAS_DEFAULTED_FUNCTIONS
730 #	define GLM_DEFAULT = default
731 #	ifdef GLM_FORCE_NO_CTOR_INIT
732 #		define GLM_DEFAULT_CTOR = default
733 #	else
734 #		define GLM_DEFAULT_CTOR
735 #	endif
736 #else
737 #	define GLM_DEFAULT
738 #	define GLM_DEFAULT_CTOR
739 #endif
740 
741 #if GLM_HAS_CONSTEXPR || GLM_HAS_CONSTEXPR_PARTIAL
742 #	define GLM_CONSTEXPR constexpr
743 #	if GLM_COMPILER & GLM_COMPILER_VC // Visual C++ has a bug #594 https://github.com/g-truc/glm/issues/594
744 #		define GLM_CONSTEXPR_CTOR
745 #	else
746 #		define GLM_CONSTEXPR_CTOR constexpr
747 #	endif
748 #else
749 #	define GLM_CONSTEXPR
750 #	define GLM_CONSTEXPR_CTOR
751 #endif
752 
753 #if GLM_HAS_CONSTEXPR
754 #	define GLM_RELAXED_CONSTEXPR constexpr
755 #else
756 #	define GLM_RELAXED_CONSTEXPR const
757 #endif
758 
759 #if GLM_ARCH == GLM_ARCH_PURE
760 #	define GLM_CONSTEXPR_SIMD GLM_CONSTEXPR_CTOR
761 #else
762 #	define GLM_CONSTEXPR_SIMD
763 #endif
764 
765 #ifdef GLM_FORCE_EXPLICIT_CTOR
766 #	define GLM_EXPLICIT explicit
767 #else
768 #	define GLM_EXPLICIT
769 #endif
770 
771 ///////////////////////////////////////////////////////////////////////////////////
772 
773 #define GLM_HAS_ALIGNED_TYPE GLM_HAS_UNRESTRICTED_UNIONS
774 
775 ///////////////////////////////////////////////////////////////////////////////////
776 // Length type
777 
778 // User defines: GLM_FORCE_SIZE_T_LENGTH GLM_FORCE_SIZE_FUNC
779 
780 namespace glm
781 {
782 	using std::size_t;
783 #	if defined(GLM_FORCE_SIZE_T_LENGTH)
784 		typedef size_t length_t;
785 #	else
786 		typedef int length_t;
787 #	endif
788 }//namespace glm
789 
790 #if GLM_MESSAGES == GLM_MESSAGES_ENABLED && !defined(GLM_MESSAGE_FORCE_SIZE_T_LENGTH)
791 #	define GLM_MESSAGE_FORCE_SIZE_T_LENGTH
792 #	if defined GLM_FORCE_SIZE_T_LENGTH
793 #		pragma message("GLM: .length() returns glm::length_t, a typedef of std::size_t")
794 #	else
795 #		pragma message("GLM: .length() returns glm::length_t, a typedef of int following the GLSL specification")
796 #	endif
797 #endif//GLM_MESSAGES
798 
799 ///////////////////////////////////////////////////////////////////////////////////
800 // countof
801 
802 #ifndef __has_feature
803 #	define __has_feature(x) 0 // Compatibility with non-clang compilers.
804 #endif
805 
806 #if GLM_HAS_CONSTEXPR_PARTIAL
807 	namespace glm
808 	{
809 		template <typename T, std::size_t N>
countof(T const (&)[N])810 		constexpr std::size_t countof(T const (&)[N])
811 		{
812 			return N;
813 		}
814 	}//namespace glm
815 #	define GLM_COUNTOF(arr) glm::countof(arr)
816 #elif defined(_MSC_VER)
817 #	define GLM_COUNTOF(arr) _countof(arr)
818 #else
819 #	define GLM_COUNTOF(arr) sizeof(arr) / sizeof(arr[0])
820 #endif
821 
822 ///////////////////////////////////////////////////////////////////////////////////
823 // Uninitialize constructors
824 
825 namespace glm
826 {
827 	enum ctor{uninitialize};
828 }//namespace glm
829