大约有 40,000 项符合查询结果(耗时:0.0457秒) [XML]

https://stackoverflow.com/ques... 

Is gcc 4.8 or earlier buggy about regular expressions?

..., it is not implemented. That prototype <regex> code was added when all of GCC's C++0x support was highly experimental, tracking early C++0x drafts and being made available for people to experiment with. That allowed people to find problems and give feedback to the standard committee before t...
https://stackoverflow.com/ques... 

What does the restrict keyword mean in C++?

... A restrict-qualified pointer (or reference)... ! ...is basically a promise to the compiler that for the scope of the pointer, the target of the pointer will only be accessed through that pointer (and pointers copied from it). In C++ compilers that support it i...
https://stackoverflow.com/ques... 

Why doesn't list have safe “get” method like dictionary?

...accessing list elements (as the len method is very fast). The .get method allows you to query the value associated with a name, not directly access the 37th item in the dictionary (which would be more like what you're asking of your list). Of course, you can easily implement this yourself: def sa...
https://stackoverflow.com/ques... 

Converting between datetime, Timestamp and datetime64

...>> numpy.__version__ '1.6.2' # current version available via pip install numpy I can reproduce the long value on numpy-1.8.0 installed as: pip install git+https://github.com/numpy/numpy.git#egg=numpy-dev The same example: >>> from datetime import datetime >>> import num...
https://stackoverflow.com/ques... 

What does “hashable” mean in Python?

...y and a set member, because these data structures use the hash value internally. All of Python’s immutable built-in objects are hashable, while no mutable containers (such as lists or dictionaries) are. Objects which are instances of user-defined classes are hashable by default; they all comp...
https://stackoverflow.com/ques... 

File Upload ASP.NET MVC 3.0

...maxRequestLength="x" /> in your web.config, where x is the number of KB allowed for upload. – rsbarro May 22 '11 at 20:33 86 ...
https://stackoverflow.com/ques... 

What does it mean if a Python object is “subscriptable” or not?

Which types of objects fall into the domain of "subscriptable"? 6 Answers 6 ...
https://stackoverflow.com/ques... 

Can I serve multiple clients using just Flask app.run() as standalone?

... need static files, no HTTP Post methods. My requirement is, I want to run all Flask threads as part of my parent app, so that they all can share variables. – ATOzTOA Feb 12 '13 at 6:03 ...
https://stackoverflow.com/ques... 

Scala 2.8 breakOut

...breakOut itself. It is of type CanBuildFrom[Nothing,T,To]. We already know all these types, so we can determine that we need an implicit of type CanBuildFrom[Nothing,(Int,String),Map[Int,String]]. But is there such a definition? Let's look at CanBuildFrom's definition: trait CanBuildFrom[-From, -E...
https://stackoverflow.com/ques... 

Calling class staticmethod within the class body?

... def stat_func(): return 42 _ANS = stat_func.__func__() # call the staticmethod def method(self): ret = Klass.stat_func() return ret As an aside, though I suspected that a staticmethod object had some sort of attribute storing the original function, I had no ...