/
cppstd_flags.py
341 lines (263 loc) · 10.5 KB
/
cppstd_flags.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
import warnings
from conans.errors import ConanException
from conans.model.version import Version
def cppstd_from_settings(settings):
cppstd = settings.get_safe("cppstd")
compiler_cppstd = settings.get_safe("compiler.cppstd")
if not cppstd and not compiler_cppstd:
return None
if cppstd and compiler_cppstd:
# Both should never arrive with a value to build_helpers
warnings.warn("Both settings, 'cppstd' and 'compiler.cppstd', should never arrive"
" with values to build_helpers")
if cppstd != compiler_cppstd:
raise ConanException("Can't decide value for C++ standard, settings mismatch: "
"'cppstd={}', 'compiler.cppstd='".format(cppstd, compiler_cppstd))
return compiler_cppstd or cppstd
def cppstd_flag(compiler, compiler_version, cppstd, compiler_base=None):
if not compiler or not compiler_version or not cppstd:
return ""
cppstd_intel = _cppstd_intel_visualstudio if compiler_base == "Visual Studio" else \
_cppstd_intel_gcc
func = {"gcc": _cppstd_gcc,
"clang": _cppstd_clang,
"apple-clang": _cppstd_apple_clang,
"Visual Studio": _cppstd_visualstudio,
"msvc": _cppstd_msvc,
"intel": cppstd_intel,
"mcst-lcc": _cppstd_mcst_lcc}.get(str(compiler), None)
flag = None
if func:
flag = func(str(compiler_version), str(cppstd))
return flag
def cppstd_flag_new(settings):
compiler = settings.get_safe("compiler")
compiler_version = settings.get_safe("compiler.version")
compiler_base = settings.get_safe("compiler.base")
cppstd = cppstd_from_settings(settings)
return cppstd_flag(compiler, compiler_version, cppstd, compiler_base)
def cppstd_default(settings):
if getattr(settings, "get_safe", None):
compiler = settings.get_safe("compiler")
compiler_version = settings.get_safe("compiler.version")
compiler_base = settings.get_safe("compiler.base")
else:
compiler = str(settings.compiler)
compiler_version = str(settings.compiler.version)
compiler_base = str(settings.compiler.base)
intel_cppstd_default = _intel_visual_cppstd_default if compiler_base == "Visual Studio" \
else _intel_gcc_cppstd_default
default = {"gcc": _gcc_cppstd_default(compiler_version),
"clang": _clang_cppstd_default(compiler_version),
"apple-clang": "gnu98", # Confirmed in apple-clang 9.1 with a simple "auto i=1;"
"Visual Studio": _visual_cppstd_default(compiler_version),
"intel": intel_cppstd_default(compiler_version),
"mcst-lcc": _mcst_lcc_cppstd_default(compiler_version)}.get(str(compiler), None)
return default
def _clang_cppstd_default(compiler_version):
# Official docs are wrong, in 6.0 the default is gnu14 to follow gcc's choice
return "gnu98" if Version(compiler_version) < "6" else "gnu14"
def _gcc_cppstd_default(compiler_version):
if Version(compiler_version) >= "11":
return "gnu17"
return "gnu98" if Version(compiler_version) < "6" else "gnu14"
def _visual_cppstd_default(compiler_version):
if Version(compiler_version) >= "14": # VS 2015 update 3 only
return "14"
return None
def _intel_visual_cppstd_default(_):
return None
def _intel_gcc_cppstd_default(_):
return "gnu98"
def _mcst_lcc_cppstd_default(compiler_version):
return "gnu14" if Version(compiler_version) >= "1.24" else "gnu98"
def _cppstd_visualstudio(visual_version, cppstd):
# https://docs.microsoft.com/en-us/cpp/build/reference/std-specify-language-standard-version
v14 = None
v17 = None
v20 = None
if Version(visual_version) >= "14":
v14 = "c++14"
v17 = "c++latest"
if Version(visual_version) >= "15":
v17 = "c++17"
v20 = "c++latest"
flag = {"14": v14, "17": v17, "20": v20}.get(str(cppstd), None)
return "/std:%s" % flag if flag else None
def _cppstd_msvc(visual_version, cppstd):
# https://docs.microsoft.com/en-us/cpp/build/reference/std-specify-language-standard-version
v14 = None
v17 = None
v20 = None
if Version(visual_version) >= "19.0":
v14 = "c++14"
v17 = "c++latest"
if Version(visual_version) >= "19.1":
v17 = "c++17"
v20 = "c++latest"
flag = {"14": v14, "17": v17, "20": v20}.get(str(cppstd), None)
return "/std:%s" % flag if flag else None
def _cppstd_apple_clang(clang_version, cppstd):
"""
Inspired in:
https://github.com/Kitware/CMake/blob/master/Modules/Compiler/AppleClang-CXX.cmake
"""
v98 = vgnu98 = v11 = vgnu11 = v14 = vgnu14 = v17 = vgnu17 = v20 = vgnu20 = None
if Version(clang_version) >= "4.0":
v98 = "c++98"
vgnu98 = "gnu++98"
v11 = "c++11"
vgnu11 = "gnu++11"
if Version(clang_version) >= "6.1":
v14 = "c++14"
vgnu14 = "gnu++14"
elif Version(clang_version) >= "5.1":
v14 = "c++1y"
vgnu14 = "gnu++1y"
if Version(clang_version) >= "6.1":
v17 = "c++1z"
vgnu17 = "gnu++1z"
if Version(clang_version) >= "9.1":
# Not confirmed that it didn't work before 9.1 but 1z is still valid, so we are ok
v17 = "c++17"
vgnu17 = "gnu++17"
if Version(clang_version) >= "10.0":
v20 = "c++2a"
vgnu20 = "gnu++2a"
flag = {"98": v98, "gnu98": vgnu98,
"11": v11, "gnu11": vgnu11,
"14": v14, "gnu14": vgnu14,
"17": v17, "gnu17": vgnu17,
"20": v20, "gnu20": vgnu20}.get(cppstd, None)
return "-std=%s" % flag if flag else None
def _cppstd_clang(clang_version, cppstd):
"""
Inspired in:
https://github.com/Kitware/CMake/blob/
1fe2dc5ef2a1f262b125a2ba6a85f624ce150dd2/Modules/Compiler/Clang-CXX.cmake
https://clang.llvm.org/cxx_status.html
"""
v98 = vgnu98 = v11 = vgnu11 = v14 = vgnu14 = v17 = vgnu17 = v20 = vgnu20 = v23 = vgnu23 = None
if Version(clang_version) >= "2.1":
v98 = "c++98"
vgnu98 = "gnu++98"
if Version(clang_version) >= "3.1":
v11 = "c++11"
vgnu11 = "gnu++11"
elif Version(clang_version) >= "2.1":
v11 = "c++0x"
vgnu11 = "gnu++0x"
if Version(clang_version) >= "3.5":
v14 = "c++14"
vgnu14 = "gnu++14"
elif Version(clang_version) >= "3.4":
v14 = "c++1y"
vgnu14 = "gnu++1y"
if Version(clang_version) >= "5":
v17 = "c++17"
vgnu17 = "gnu++17"
elif Version(clang_version) >= "3.5":
v17 = "c++1z"
vgnu17 = "gnu++1z"
if Version(clang_version) >= "6":
v20 = "c++2a"
vgnu20 = "gnu++2a"
if Version(clang_version) >= "12":
v20 = "c++20"
vgnu20 = "gnu++20"
v23 = "c++2b"
vgnu23 = "gnu++2b"
flag = {"98": v98, "gnu98": vgnu98,
"11": v11, "gnu11": vgnu11,
"14": v14, "gnu14": vgnu14,
"17": v17, "gnu17": vgnu17,
"20": v20, "gnu20": vgnu20,
"23": v23, "gnu23": vgnu23}.get(cppstd, None)
return "-std=%s" % flag if flag else None
def _cppstd_gcc(gcc_version, cppstd):
"""https://github.com/Kitware/CMake/blob/master/Modules/Compiler/GNU-CXX.cmake"""
# https://gcc.gnu.org/projects/cxx-status.html
v98 = vgnu98 = v11 = vgnu11 = v14 = vgnu14 = v17 = vgnu17 = v20 = vgnu20 = v23 = vgnu23 = None
if Version(gcc_version) >= "3.4":
v98 = "c++98"
vgnu98 = "gnu++98"
if Version(gcc_version) >= "4.7":
v11 = "c++11"
vgnu11 = "gnu++11"
elif Version(gcc_version) >= "4.3":
v11 = "c++0x"
vgnu11 = "gnu++0x"
if Version(gcc_version) >= "4.9":
v14 = "c++14"
vgnu14 = "gnu++14"
elif Version(gcc_version) >= "4.8":
v14 = "c++1y"
vgnu14 = "gnu++1y"
if Version(gcc_version) >= "5":
v17 = "c++1z"
vgnu17 = "gnu++1z"
if Version(gcc_version) >= "5.2": # Not sure if even in 5.1 gnu17 is valid, but gnu1z is
v17 = "c++17"
vgnu17 = "gnu++17"
if Version(gcc_version) >= "8":
v20 = "c++2a"
vgnu20 = "gnu++2a"
if Version(gcc_version) >= "11":
v23 = "c++2b"
vgnu23 = "gnu++2b"
flag = {"98": v98, "gnu98": vgnu98,
"11": v11, "gnu11": vgnu11,
"14": v14, "gnu14": vgnu14,
"17": v17, "gnu17": vgnu17,
"20": v20, "gnu20": vgnu20,
"23": v23, "gnu23": vgnu23}.get(cppstd)
return "-std=%s" % flag if flag else None
def _cppstd_intel_common(intel_version, cppstd, vgnu98, vgnu0x):
# https://software.intel.com/en-us/cpp-compiler-developer-guide-and-reference-std-qstd
# https://software.intel.com/en-us/articles/intel-cpp-compiler-release-notes
# NOTE: there are only gnu++98 and gnu++0x, and only for Linux/macOS
v98 = v11 = v14 = v17 = v20 = None
vgnu11 = vgnu14 = vgnu17 = vgnu20 = None
if Version(intel_version) >= "12":
v11 = "c++0x"
vgnu11 = vgnu0x
if Version(intel_version) >= "14":
v11 = "c++11"
vgnu11 = vgnu0x
if Version(intel_version) >= "16":
v14 = "c++14"
if Version(intel_version) >= "18":
v17 = "c++17"
if Version(intel_version) >= "19.1":
v20 = "c++20"
return {"98": v98, "gnu98": vgnu98,
"11": v11, "gnu11": vgnu11,
"14": v14, "gnu14": vgnu14,
"17": v17, "gnu17": vgnu17,
"20": v20, "gnu20": vgnu20}.get(cppstd)
def _cppstd_intel_gcc(intel_version, cppstd):
flag = _cppstd_intel_common(intel_version, cppstd, "gnu++98", "gnu++0x")
return "-std=%s" % flag if flag else None
def _cppstd_intel_visualstudio(intel_version, cppstd):
flag = _cppstd_intel_common(intel_version, cppstd, None, None)
return "/Qstd=%s" % flag if flag else None
def _cppstd_mcst_lcc(mcst_lcc_version, cppstd):
v11 = vgnu11 = v14 = vgnu14 = v17 = vgnu17 = v20 = vgnu20 = None
if Version(mcst_lcc_version) >= "1.21":
v11 = "c++11"
vgnu11 = "gnu++11"
v14 = "c++14"
vgnu14 = "gnu++14"
if Version(mcst_lcc_version) >= "1.24":
v17 = "c++17"
vgnu17 = "gnu++17"
if Version(mcst_lcc_version) >= "1.25":
v20 = "c++2a"
vgnu20 = "gnu++2a"
flag = {"98": "c++98", "gnu98": "gnu++98",
"03": "c++03", "gnu03": "gnu++03",
"11": v11, "gnu11": vgnu11,
"14": v14, "gnu14": vgnu14,
"17": v17, "gnu17": vgnu17,
"20": v20, "gnu20": vgnu20}.get(cppstd)
return "-std=%s" % flag if flag else None