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Virtual functions and performance - C++
...hese vectors (small enough to fit in L1) and ran a loop that added them to one another (A.x = B.x + C.x) 1000 times. I ran this with the functions defined as inline, virtual, and regular function calls. Here are the results:
inline: 8ms (0.65ns per call)
direct: 68ms (5.53ns per call)
virtual...
Following git-flow how should you handle a hotfix of an earlier release?
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One should do a release on the hot fix, right? How can we do that?
– Ravindranath Akila
Jun 14 '17 at 7:30
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How do I profile memory usage in Python?
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This one has been answered already here: Python memory profiler
Basically you do something like that (cited from Guppy-PE):
>>> from guppy import hpy; h=hpy()
>>> h.heap()
Partition of a set of 48477 objects. T...
Why is a C++ Vector called a Vector?
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@Joseph Garvin: Vectors don't even need to have components that are numbers. For example, certain sets of functions can be used to form vector spaces where the components are functions.
– jason
Sep 15 '09 at 20:56
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Trying to add adb to PATH variable OSX
...e reason adb does not want to be found. This is very frustrating. Has anyone else had this problem before?
14 Answers
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How to draw vertical lines on a given plot in matplotlib?
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If someone wants to add a legend and/or colors to some vertical lines, then use this:
import matplotlib.pyplot as plt
# x coordinates for the lines
xcoords = [0.1, 0.3, 0.5]
# colors for the lines
colors = ['r','k','b']
for xc,...
How to mark a build unstable in Jenkins when running shell scripts
... tasks. Some are sh/bash scripts that run rsync, and some are PHP scripts. One of the PHP scripts is running some integration tests that output to JUnit XML, code coverage reports, and similar.
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What is the purpose of a self executing function in javascript?
...iables are named in other blocks of JavaScript code.
For example, as mentioned in a comment by Alexander:
(function() {
var foo = 3;
console.log(foo);
})();
console.log(foo);
This will first log 3 and then throw an error on the next console.log because foo is not defined.
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Is it possible to capture a Ctrl+C signal and run a cleanup function, in a “defer” fashion?
...me.Gosched in an appropriate place (in your program's main loop, if it has one)
– misterbee
Aug 4 '13 at 15:53
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javax.validation.ValidationException: HV000183: Unable to load 'javax.el.ExpressionFactory'
...ge for SE environments: github.com/hibernate/hibernate-validator. The top one was sufficient for me though.
– vphilipnyc
Jun 29 '16 at 7:27
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