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How to implement an STL-style iterator and avoid common pitfalls?
... void swap(iterator& lhs, iterator& rhs); //C++11 I think
};
input_iterator : public virtual iterator {
iterator operator++(int); //postfix increment
value_type operator*() const;
pointer operator->() const;
friend bool operator==(const iterator&, const iterator&)...
How to wait for several Futures?
...]):Future[List[Any]] = {
val fut = if (futures.size == 1) futures.head._2
else Future.firstCompletedOf(futures.values)
fut onComplete{
case Success(value) if (futures.size == 1)=>
prom.success(value :: values)
case Success(value) =>
processFutures(fut...
What is the most efficient way to loop through dataframes with pandas? [duplicate]
...
Nick CrawfordNick Crawford
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lua和c/c++互相调用实例分析 - C/C++ - 清泛网 - 专注C/C++及内核技术
...lua的运行环境，相关接口如下：
//创建lua运行上下文
lua_State* luaL_newstate(void) ;
//加载lua脚本文件
int luaL_loadfile(lua_State *L, const char *filename);
lua和c/c++的数据交互通过"栈"进行 ,操作数据时，首先将数据拷贝到"栈"上，然后获取...
Can I load a UIImage from a URL?
...
Daniel BlezekDaniel Blezek
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Get the value of an instance variable given its name
... is:
class Computer
attr_reader :cpus
end
Now you can do Computer.new(4).cpus.
Note that you can reopen any existing class and make a private ivar into a reader. Since an accessor is just a method, you can do Computer.new(4).send(var_that_evaluates_to_cpus)
...
Python: fastest way to create a list of n lists
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Sven MarnachSven Marnach
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iPhone UITextField - Change placeholder text color
... |
edited Jun 22 '14 at 15:36
answered Dec 4 '12 at 3:08
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Convert string to symbol-able in ruby
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edited Feb 4 '15 at 10:16
Jake Berger
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Calling method using JavaScript prototype
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