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Why does ~True result in -2?
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int(True) is 1.
1 is:
00000001
and ~1 is:
11111110
Which is -2 in Two's complement1
1 Flip all the bits, add 1 to the resulting number and interpret the result as a binary representation of the magnitude and add a negative sign (since the number begins...
Git commit date
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The
show
command may be what you want. Try
git show -s --format=%ci <commit>
Other formats for the date string are available as well. Check the manual page for
details.
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Writing string to a file on a new line every time
... I think the f.write method is better as it can be used in both Python 2 and 3.
– Dang Manh Truong
Apr 10 '18 at 12:02
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Difference between git pull --rebase and git pull --ff-only
Let's say origin/master has commit A--B--C and my local/master has commit A--B--D .
1 Answer
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ActiveRecord, has_many :through, and Polymorphic Associations
...owever, is there any way to accomplish this these days without source_type and two separate associations?
– Emeka
Feb 27 '16 at 15:27
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How do I revert master branch to a tag in git?
We have branches origin and develop.
The initial state of master was tagged at tag_ABC .
2 Answers
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Java: Subpackage visibility?
I have two packages in my project: odp.proj and odp.proj.test . There are certain methods that I want to be visible only to the classes in these two packages. How can I do this?
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Removing list of vms in vagrant cache
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You should use the following command to remove invalid entries from the global index:
vagrant global-status --prune
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TCP loopback connection vs Unix Domain Socket performance
Working on an Android and iOS based application which require communication with a server running in the same device. Currently using TCP loopback connection for communicating with App and Server (App written in user layer, server written in C++ using Android NDK)
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Converting Integer to Long
...ens that I am not always sure what the datatype of the field is. For that, and to avoid some code duplication I have created the following method:
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