大约有 12,000 项符合查询结果（耗时：0.0301秒） [XML]
Using the slash character in Git branch name
... Thanks for the in depth reply.. Interstingly I tried git branch foo/bar (which worked); then git branch -d foo/bar, but I see that the foo/ directory (now empty) still exists! EDIT: and it is replaced as soon as I do "git branch foo". All is well.
– user58777
...
How to properly check if std::function is empty in C++11?
...td::function, std::plus
int main () {
std::function<int(int,int)> foo,bar;
foo = std::plus<int>();
foo.swap(bar);
std::cout << "foo is " << (foo ? "callable" : "not callable") << ".\n";
std::cout << "bar is " << (bar ? "callable" : "not callable...
What are “named tuples” in Python?
...mport NamedTuple
class ANamedTuple(NamedTuple):
"""a docstring"""
foo: int
bar: str
baz: list
The above is the same as the below, except the above additionally has type annotations and a docstring. The below is available in Python 2+:
>>> from collections import namedtup...
Is there YAML syntax for sharing part of a list or map?
...ick, as in the following (untested) example:
sitelist: &sites
? www.foo.com # "www.foo.com" is the key, the value is null
? www.bar.com
anotherlist:
<< : *sites # merge *sites into this mapping
? www.baz.com # add extra stuff
Some things to notice. Firstly, since << ...
Remove element of a regular array
I have an array of Foo objects. How do I remove the second element of the array?
15 Answers
...
Configuring so that pip install can work from github
...need the whole python package, with a setup.py file in it.
A package named foo would be:
foo # the installable package
├── foo
│ ├── __init__.py
│ └── bar.py
└── setup.py
And install from github like:
$ pip install git+ssh://git@github.com/myuser/foo.git
or
$ pip...
How can I use inverse or negative wildcards when pattern matching in a unix/linux shell?
... like this (replace ls with cp and add the target directory, of course)
~/foobar> shopt extglob
extglob off
~/foobar> ls
abar afoo bbar bfoo
~/foobar> ls !(b*)
-bash: !: event not found
~/foobar> shopt -s extglob # Enables extglob
~/foobar> ls !(b*)
abar afoo
~/foobar>...
Forward declaration of a typedef in C++
...int a;
int b;
} bah;
// b.h
struct _bah;
typedef _bah bah;
class foo {
foo(bah * b);
foo(bah b);
bah * mBah;
};
// b.cpp
#include "b.h"
#include "a.h"
foo::foo(bah * b) {
mBah = b;
}
foo::foo(bah b) {
mBah = &b;
}
...
When vectors are allocated, do they use memory on the heap or the stack?
... community wiki
2 revsFred Foo
3
...
Why should the “PIMPL” idiom be used? [duplicate]
...
Well, I wouldn't use it. I have a better alternative:
foo.h:
class Foo {
public:
virtual ~Foo() { }
virtual void someMethod() = 0;
// This "replaces" the constructor
static Foo *create();
}
foo.cpp:
namespace {
class FooImpl: virtual public Foo {
pu...