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Comma in C/C++ macro
...ose the macro argument in parentheses:
FOO((std::map<int, int>), map_var);
The problem is then that the parameter remains parenthesized inside the macro expansion, which prevents it being read as a type in most contexts.
A nice trick to workaround this is that in C++, you can extract a typ...
Setting element of array from Twig
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show 4 more comments
80
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What's the common practice for enums in Python? [duplicate]
...
@Joan You could do _unused, Shaded, Shiny, Transparent, Matte = range(5)
– zekel
Dec 9 '10 at 2:12
81
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How do I unload (reload) a Python module?
...r process itself.
To quote from the docs:
Python modules’ code is recompiled and
the module-level code reexecuted,
defining a new set of objects which
are bound to names in the module’s
dictionary. The init function of
extension modules is not called a
second time. As with all o...
How to check if an object is a list or tuple (but not string)?
...quence; otherwise, if it is indexable or iterable, it's a sequence:
def is_sequence(arg):
return (not hasattr(arg, "strip") and
hasattr(arg, "__getitem__") or
hasattr(arg, "__iter__"))
def srepr(arg):
if is_sequence(arg):
return '<' + ", ".join(srepr(x) f...
MongoDB数据导出导入工具：mongoexport,mongoimport - 大数据 & AI - 清泛...
...个students集合，集合中数据如下：
> db.students.find()
{ "_id" : ObjectId("5031143350f2481577ea81e5"), "classid" : 1, "age" : 20, "name" : "kobe" }
{ "_id" : ObjectId("5031144a50f2481577ea81e6"), "classid" : 1, "age" : 23, "name" : "nash" }
{ "_id" : ObjectId("5031145a50f2481577ea81...
How to delete an object by id with entity framework
...text before the Remove operation can be performed. See here docs.microsoft.com/en-us/dotnet/api/…
– dwkd
Jan 28 '19 at 23:51
1
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What to put in a python module docstring? [closed]
...
NAME
x - This module does blah blah.
FILE
/tmp/x.py
CLASSES
__builtin__.object
Blah
class Blah(__builtin__.object)
| This class does blah blah.
|
| Data and other attributes defined here:
|
| __dict__ = <dictproxy object>
| ...
Is Safari on iOS 6 caching $.ajax results?
...will NOT cache
I suspect that Apple is taking advantage of this from the HTTP spec in section 9.5 about POST:
Responses to this method are not cacheable, unless the response
includes appropriate Cache-Control or Expires header fields. However,
the 303 (See Other) response can be used...
Why does @foo.setter in Python not work for me?
...operty
def x(self):
print 'called getter'
return self._x
@x.setter
def x(self, value):
print 'called setter'
self._x = value
It works:
>>> k = testDec()
>>> k.x
called getter
Traceback (most recent call last):
File "<stdin>"...