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How do I flag a method as deprecated in Objective-C 2.0?
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163
Deprecation Syntax
Syntax is provided to mark methods as deprecated:
@interface SomeClass
-met...
Define: What is a HashSet?
...ashSet
The C# HashSet data structure was introduced in the .NET Framework 3.5. A full list of the implemented members can be found at the HashSet MSDN page.
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Why can't an anonymous method be assigned to var?
...u like to be inferred for the following cases?
var x1 = (ref int y)=>123;
There is no Func<T> type that takes a ref anything.
var x2 = y=>123;
We don't know the type of the formal parameter, though we do know the return. (Or do we? Is the return int? long? short? byte?)
var x3 = (...
How to modify a global variable within a function in bash?
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kvantour
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answered May 9 '14 at 12:56
Josh JollyJosh Jolly
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MySQL select where column is not empty
In MySQL, can I select columns only where something exists?
13 Answers
13
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How do I dump the data of some SQLite3 tables?
How do I dump the data, and only the data, not the schema, of some SQLite3 tables of a database (not all the tables)?
The dump should be in SQL format, as it should be easily re-entered into the database later and should be done from the command line. Something like
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用矩阵管理成绩表 - App Inventor 2 矩阵块入门案例 · App Inventor 2 中文网
...：把成绩表装进矩阵
第 2 关：查任意一格的成绩
第 3 关：改成绩（原地修改）
第 4 关：算某一行（某名学生）的平均分
第 5 关：整表转置，横过来看
排错表
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What is __future__ in Python used for and how/when to use it, and how it works
...ase, // calls __floordiv__().)
Apropos print: print becomes a function in 3.x, losing its special property as a keyword. So it is the other way round.
>>> print
>>> from __future__ import print_function
>>> print
<built-in function print>
>>>
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How to specialize std::hash::operator() for user-defined type in unordered containers?
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3 Answers
3
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std::vector performance regression when enabling C++11
...your original code, with container.push_back(Item());)
$ g++ -std=c++11 -O3 -flto regr.cpp && perf stat -r 10 ./a.out
Performance counter stats for './a.out' (10 runs):
35.426793 task-clock # 0.986 CPUs utilized ( +- 1.75% )
4 cont...