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Python, creating objects
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answered Feb 26 '13 at 5:05
pyrospadepyrospade
6,72611 gold badge2828 silver badges4747 bronze badges
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Declaring an enum within a class
...некоторый код
break;
}
Color2 c2 = Color2::Green;
c2 = c; //error
c2 = 3; //error
if (c2 == Color::Red ) {} //error
If (c2) {} error
I create macro to facilitate usage:
#define DEFINE_SIMPLE_ENUM(EnumName, seq) \
struct EnumName {\
enum type \
{ \
BOOST_PP_SEQ_FOR_EACH_...
Comparing two dictionaries and checking how many (key, value) pairs are equal
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Same error if there is list element for the dict key. I think cmp is better way to do it unless I am missing anything.
– Mutant
Sep 22 '15 at 20:22
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What is a NullReferenceException, and how do I fix it?
...ghout. It is slightly more clunky to write, but it makes debugging nullity errors much easier. Optimize your code for the convenience of the caller, not the convenience of the author.
A note on null dereferences in unsafe code
C# has an "unsafe" mode which is, as the name implies, extremely dangero...
Cookie overflow in rails application?
I have this error when I try to open the page. I do not know how to debug this error. Do you have any suggestion for this problem?
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Android: Bitmaps loaded from gallery are rotated in ImageView
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JamesJames
8,50511 gold badge2525 silver badges4444 bronze badges
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Is it a good practice to use try-except-else in Python?
...able code in these cases.
"It my understanding that exceptions are not errors, they should only
be used for exceptional conditions"
In some other languages, that rule reflects their cultural norms as reflected in their libraries. The "rule" is also based in-part on performance considerations...
Correct way to close nested streams and writers in Java [duplicate]
... be reasonably expected to handle and recover from. Also you've also taken Error's and made them into RuntimeException's.
– steinybot
Sep 30 '14 at 20:54
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Is there a performance difference between i++ and ++i in C++?
...xtremely:
Flags (--std=c++0x) ++i i++
-DPACKET_SIZE=50 -O1 0.05 0.74
-DPACKET_SIZE=50 -O3 0.08 0.97
-DPACKET_SIZE=500 -O1 0.05 2.79
-DPACKET_SIZE=500 -O3 0.08 2.18
-DPACKET_SIZE=5000 -O3 0.07 21.90
Conclusion
Performance-wise
If you do not need the previo...
How to write a Python module/package?
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answered Nov 18 '15 at 1:05
arcseldonarcseldon
27.1k1414 gold badges9999 silver badges109109 bronze badges
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