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C++简练易用的线程池(threadpool)及上下文隔离的无锁线程池(isolated_threa...
...s>
auto commit(F&& f, Args&&... args) ->future<decltype(f(args...))>
{
if (!_run)
throw runtime_error("commit on ThreadPool is stopped.");
using RetType = decltype(f(args...)); // typename std::result_of<F(Args...)>::type, 函数 f 的返回值类型
auto task = make_shared<packaged_ta...
编译器内部的秘密--微软的编译器是如何解析Try/Catch/Throw的 - C/C++ - 清...
...
unsigned long __stdcall mainHandler1(LPEXCEPTION_POINTERS info)
{
if(info->ExceptionRecord->ExceptionCode != 0xE06D7363)
return EXCEPTION_CONTINUE_SEARCH; //非C++类异常，则继续寻找SEH链表的下个结构进行处理
if(WeHaveAHandlerForThisTypeSomeWhere(info->ExceptionRecord))...
Is it bad practice to have a constructor function return a Promise?
...ew Engine()
engine.displayPosts();
If that task is asynchronous, you can now easily return a promise for its results from the method, to easily wait until it is finished.
I would however not recommend this pattern when the method (asynchronously) mutates the instance and other methods depend on th...
Using OR in SQLAlchemy
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Note that this approach supports using generators, so if you have a long list of things to OR, you can do filter(or_(User.name == v for v in ('Alice', 'Bob', 'Carl')))
– robru
Aug 26 '15 at 20:21
...
get current url in twig template?
...utes.get('_route'),
app.request.attributes.get('_route_params')) }}
If you want to read it into a view variable:
{% set currentPath = path(app.request.attributes.get('_route'),
app.request.attributes.get('_route_params')) %}
The app global view variable contains all ...
fs: how do I locate a parent folder?
...
@eyurdakul If I understand it corrently: __dirname may look like /path/to/your/dir, if you say __dirname + ".." it is /path/to/your/dir.., which is a nonexistent directory, rather than /path/to/your. The slash is important.
...
Best way to use PHP to encrypt and decrypt passwords? [duplicate]
...e and passwords, etc... I want to keep information secure, but I know that if I hash their information, I can't retrieve it for later use.
...
How to rename items in values() in Django?
...oes SELECT cryptic_value_name AS renamed_value in the SQL.
Another option, if you always want the renamed version but the db has the cryptic name, is to name your field with the new name but use db_column to refer to the original name in the db.
...
Numpy: Get random set of rows from 2D array
...mask = numpy.random.choice([False, True], len(data_arr), p=[0.75, 0.25])
Now you can call data_arr[mask] and return ~25% of the rows, randomly sampled.
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How to achieve function overloading in C?
... argument)
opengl style functions (type in function name)
c subset of c++ (if You can use a c++ compiler)
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