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C++ preprocessor __VA_ARGS__ number of arguments
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PP_ARG_N(__VA_ARGS__)
#define PP_ARG_N( \
_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...
Python (and Python C API): __new__ versus __init__
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>>> x = (1, 2)
>>> x
(1, 2)
>>> x.__init__([3, 4])
>>> x # tuple.__init__ does nothing
(1, 2)
>>> y = [1, 2]
>>> y
[1, 2]
>>> y.__init__([3, 4])
>>> y # list.__init__ reinitialises the object
[3, 4]
As to why they're separate...
How to properly assert that an exception gets raised in pytest?
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platform linux2 -- Python 2.7.6 -- py-1.4.26 -- pytest-2.6.4
collected 7 items
test.py ..FF..F
=================================================================================================== FAILURES ==========================================================...
What are “first class” objects?
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Mehul Kabaria
4,78044 gold badges1616 silver badges3838 bronze badges
answered Oct 28 '08 at 23:49
S.LottS.Lott
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what does the __file__ variable mean/do?
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answered Feb 14 '12 at 3:55
paxdiablopaxdiablo
736k199199 gold badges14231423 silver badges17931793 bronze badges
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Python extending with - using super() Python 3 vs Python 2
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Eric O Lebigot
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answered May 7 '12 at 13:44
matamata
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__FILE__, __LINE__, and __FUNCTION__ usage in C++
... Evan TeranEvan Teran
77.8k2525 gold badges164164 silver badges229229 bronze badges
3
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How do I achieve the theoretical maximum of 4 FLOPs per cycle?
How can the theoretical peak performance of 4 floating point operations (double precision) per cycle be achieved on a modern x86-64 Intel CPU?
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What is the most efficient/elegant way to parse a flat table into a tree?
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