大约有 1,669 项符合查询结果（耗时：0.0200秒） [XML]
How can I profile C++ code running on Linux?
...ot precision of measure. So for example, there can be, mid-stack, a single function call A(); that accounts for 50% of time, but it can be in another large function B, along with many other calls to A() that are not costly. Precise summaries of function times can be a clue, but every other stack sam...
What are the differences between Perl, Python, AWK and sed? [closed]
...unced "tim-toady"). Perl has 'objects', but it is more of an add-on than a fundamental part of the language.
Python was written last, and probably in part as a reaction to Perl. It has some interesting syntactic ideas (indenting to indicate levels - no braces or equivalents). It is more fundamental...
App Inventor 2 SQLite 拓展：超流行兼容主流SQL语法的迷你本地数据库引擎...
...展由中文网开发及维护，基于开源 aix-SQLite 拓展。
与 TaifunSQLite 功能类似，但TaifunSQLite是收费的，美刀。
.aix 拓展下载：
cn.fun123.SQLite.aix
中文网测试案例
.aia 测试源码下载：
TestSqlite.aia
打开...
What are the use cases of Graph-based Databases (http://neo4j.org/)? [closed]
...odel were rapid development time and flexibility. We could quickly add new functionality without impacting existing deployments. If a potential customer wanted to import some of their own data and graft it on top of our model, it could usually be done on site by the sales rep. Flexibility also helpe...
What's the difference between faking, mocking, and stubbing?
...n:
Fake: We acquire or build a very lightweight implementation of the same functionality as provided by a component that the SUT depends on and instruct the SUT to use it instead of the real.
Stub : This implementation is configured to respond to calls from the SUT with the values (or exceptions) th...
How to determine if a number is a prime with regex?
...mitted for clarity), the above regex is identical to the original.
More fun regex
The following regex uses similar technique; it should be educational:
System.out.println(
"OhMyGod=MyMyMyOhGodOhGodOhGod"
.replaceAll("^(.+)(.+)(.+)=(\\1|\\2|\\3)+$", "$1! $2! $3!")
); // prints "Oh! M...
Why and How to avoid Event Handler memory leaks?
...ds a reference to object B, then, it will mean, object A needs object B to function, right? So, the garbage collector won't collect the object B as long as the object A is alive in the memory.
I think this part should be obvious to a developer.
+= Means, injecting reference of Right side object to...
Is it better to specify source files with GLOB or each file individually in CMake?
...ifftool files are stored as $basename.$ext.$type.$pid.$ext which can cause fun errors when trying to compile after a single merge resolution.
– mathstuf
Mar 4 '13 at 21:43
9
...
What is the formal difference in Scala between braces and parentheses, and when should they be used?
What is the formal difference between passing arguments to functions in parentheses () and in braces {} ?
9 Answers
...
What are free monads?
...re accessible explanation.
Free monads are just a general way of turning functors into monads. That is, given any functor f Free f is a monad. This would not be very useful, except you get a pair of functions
liftFree :: Functor f => f a -> Free f a
foldFree :: Functor f => (f r -> ...