51 lines
1.9 KiB
C
51 lines
1.9 KiB
C
//| Copyright: (C) 2009-2020 Kevin Larke <contact AT larke DOT org>
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//| License: GNU GPL version 3.0 or above. See the accompanying LICENSE file.
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#ifndef cmPP_NARG_H
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#define cmPP_NARG_H
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//( { file_desc:"Var-args argument counter. " kw:[base] }
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//
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// Taken from here:
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// https://groups.google.com/forum/#!topic/comp.std.c/d-6Mj5Lko_s
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// and here:
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// https://stackoverflow.com/questions/4421681/how-to-count-the-number-of-arguments-passed-to-a-function-that-accepts-a-variabl
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#define PP_NARG(...) \
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PP_NARG_(__VA_ARGS__,PP_RSEQ_N())
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#define PP_NARG_(...) \
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PP_128TH_ARG(__VA_ARGS__)
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#define PP_128TH_ARG( \
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_1, _2, _3, _4, _5, _6, _7, _8, _9,_10, \
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_11,_12,_13,_14,_15,_16,_17,_18,_19,_20, \
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_21,_22,_23,_24,_25,_26,_27,_28,_29,_30, \
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_31,_32,_33,_34,_35,_36,_37,_38,_39,_40, \
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_41,_42,_43,_44,_45,_46,_47,_48,_49,_50, \
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_51,_52,_53,_54,_55,_56,_57,_58,_59,_60, \
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_61,_62,_63,_64,_65,_66,_67,_68,_69,_70, \
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_71,_72,_73,_74,_75,_76,_77,_78,_79,_80, \
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_81,_82,_83,_84,_85,_86,_87,_88,_89,_90, \
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_91,_92,_93,_94,_95,_96,_97,_98,_99,_100, \
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_101,_102,_103,_104,_105,_106,_107,_108,_109,_110, \
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_111,_112,_113,_114,_115,_116,_117,_118,_119,_120, \
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_121,_122,_123,_124,_125,_126,_127,N,...) N
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#define PP_RSEQ_N() \
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127,126,125,124,123,122,121,120, \
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119,118,117,116,115,114,113,112,111,110, \
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109,108,107,106,105,104,103,102,101,100, \
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99,98,97,96,95,94,93,92,91,90, \
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89,88,87,86,85,84,83,82,81,80, \
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79,78,77,76,75,74,73,72,71,70, \
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69,68,67,66,65,64,63,62,61,60, \
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59,58,57,56,55,54,53,52,51,50, \
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49,48,47,46,45,44,43,42,41,40, \
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39,38,37,36,35,34,33,32,31,30, \
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29,28,27,26,25,24,23,22,21,20, \
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19,18,17,16,15,14,13,12,11,10, \
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9,8,7,6,5,4,3,2,1,0
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#endif
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//)
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