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Choice between vector::resize() and vector::reserve()
...ause it was done in advance, but that's the only effect.
So it depends on what you want. If you want an array of 1000 default items, use resize(). If you want an array to which you expect to insert 1000 items and want to avoid a couple of allocations, use reserve().
EDIT: Blastfurnace's comment ma...
WPF Application that only has a tray icon
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Kudos for that last paragraph. That was exactly what I needed to know, and it's this level of simple, insightful detail that smacks of a good developer.
– Matthew Layton
Jun 27 '17 at 7:44
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What's the Android ADB shell “dumpsys” tool and what are its benefits?
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What's dumpsys and what are its benefit
dumpsys is an android tool that runs on the device and dumps interesting information about the status of system services.
Obvious benefits:
Possibility to easily get system informat...
Sorting list based on values from another list?
... answered Jul 8 '11 at 0:02
WhatangWhatang
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How to get the number of days of difference between two dates on mysql?
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What about the DATEDIFF function ?
Quoting the manual's page :
DATEDIFF() returns expr1 – expr2
expressed as a value in days from one
date to the other. expr1 and expr2
are date or date-and-time expressions.
O...
How to install grunt and how to build script with it
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that's what I've been looking for, thanks. also, is it required that gruntfile.js should be placed in project root folder (can't get it to work otherwise on windows)?
– chester89
Jun 4 '13 at 2...
How to RSYNC a single file?
... and target, all of the directories in the file's path already exist.
But what if you want to sync a file with this source path:
/source-root/a/b/file
to a file with the following target path:
/target-root/a/b/file
and the directories a and b don't exist?
You need to run an rsync command like ...
Android studio: new project vs new module
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From the documentation (Android Studio is based on Intellij IDEA) :
Whatever you do in IntelliJ IDEA, you do that in the context of a
project. A project is an organizational unit that represents a
complete software solution.
Your finished product may be decomposed into a series of di...
What's the safest way to iterate through the keys of a Perl hash?
If I have a Perl hash with a bunch of (key, value) pairs, what is the preferred method of iterating through all the keys? I have heard that using each may in some way have unintended side effects. So, is that true, and is one of the two following methods best, or is there a better way?
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Is there an easy way to pickle a python function (or otherwise serialize its code)?
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Thanks. This is exactly what I was looking for. Based on some cursory testing, it works as is for generators.
– Michael Fairley
Aug 10 '09 at 17:47
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