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From inside of a Docker container, how do I connect to the localhost of the machine?
...ainer type ip addr show eth0 to discover how its main network interface is set up:
root@e77f6a1b3740:/# ip addr show eth0
863: eth0: <BROADCAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 66:32:13:f0:f1:e3 brd ff:ff:ff:ff:ff:ff
inet 172.17.1.192/...
Difference between char* and const char*?
..., and will cause segmentation fault upon running the programme
The above sets str to point to the literal value "Hello" which is hard-coded in the program's binary image, which is flagged as read-only in memory, means any change in this String literal is illegal and that would throw segmentation f...
Tool to track #include dependencies [closed]
...l.exe (VS2008) and found the /showIncludes flag. From the IDE, this can be set from the property page of any CPP file.
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How do I remove a submodule?
...r of the now removed submodule and might irritate users (as opposed to the setting in .git/config, this must stay as a reminder that the user showed interest in this submodule so it will be repopulated later when an older commit is checked out).
Let "git rm" help the user by not only removing t...
Concatenate two slices in Go
...ich constructs a slice and also controls the resulting slice's capacity by setting it to max - low.
See the modified example (the only difference is that we create x like this: x = a[:2:2]:
a := [10]int{1, 2}
fmt.Printf("a: %v\n", a)
x, y := a[:2:2], []int{3, 4}
fmt.Printf("x: %v, y: %v\n", x, y)...
How to validate a url in Python? (Malformed or not)
...l('http://www.google.com')
except ValidationError, e:
print e
If you set verify_exists to True, it will actually verify that the URL exists, otherwise it will just check if it's formed correctly.
edit: ah yeah, this question is a duplicate of this: How can I check if a URL exists with Django...
UITextField auto-capitalization type - iPhone App
Is there a way to set the autocapitalizationType for a UITextField so that the first letter of each word is capitalized by default?
...
How can I find the number of days between two Date objects in Ruby?
...
How about this?
(beginDate...endDate).count
The Range is a set of unique serials.
And ... is an exclusive Range literal.
So beginDate..(endDate - 1) is same. Except is not.
In case when beginDate equals endDate, first element will be excluded because of uniqueness and ... will excl...
How to use the pass statement?
...steps outside of the conditional statements. In the example above, flag is set in the two specifically mentioned cases, but not in the else-case. Without using pass, a future programmer might move flag = True to outside the condition—thus setting flag in all cases.
Another case is with the boil...
Convert two lists into a dictionary
...expect it to, @FernandoWittmann. {thing} is syntactic sugar to construct a set() containing one element. {*iterable} is syntactic sugar to construct a set containing several elements. {k:v} or {**mapping} will construct a dict, but that's syntactically quite distinct.
– Dan Len...