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How does #include work in C++? [duplicate]
...brary and STL include file. The only purpose I can see for it would be for testing and education.
Se e.g. GCC 4.8.0 /bits/stdc++.h source.
Using it would include a lot of unnecessary stuff and increases compilation time.
Edit: As Neil says, it's an implementation for precompiled headers. If you s...
What is “callback hell” and how and why does RX solve it?
...ions we get here on StackOverflow asking how to do this kind of thing is a testament to how confusing it is :)
3) Why does it occur ?
It occurs because in JavaScript the only way to delay a computation so that it runs after the asynchronous call returns is to put the delayed code inside a callback...
Filter rows which contain a certain string
...str", "", object) # -> "ingr"
Benchmark
The results of the benchmark test are as follows. For large dataframe, str_detect is faster.
library(rbenchmark)
library(tidyverse)
# The data. Data expo 09. ASA Statistics Computing and Graphics
# http://stat-computing.org/dataexpo/2009/the-data.html...
I want to delete all bin and obj folders to force all projects to rebuild everything
... course be wise to run whatever command you choose somewhere safe first to test it!
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what is Promotional and Feature graphic in Android Market/Play Store?
...s" are chosen at Google's discretion. Even though excellent the "This is a test" app demonstration (above) shows the Feature graphic used in common areas of the outdated "Android Market", this is no longer the case with today's "Play Store".
Quote from the site:
The Promo Graphic is used for pr...
UITextView that expands to text using auto layout
...cMetric; } return size; }. Tell me if it's working for you. Didn't test it myself.
– manuelwaldner
Mar 14 '17 at 8:27
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How to get UITableView from UITableViewCell?
...archy changes or reverts in the future it will show up immediately in your tests.
Solution #2: Add a Weak UITableView reference to UITableViewCell
@interface SOUITableViewCell
@property (weak, nonatomic) UITableView *tableView;
@end
This is a much better design, though it will require a bi...
Pinging servers in Python
...that I will occasionally get a ping success when my modem is off??? That's testing "8.8.8.8" and "google.com" on a Windows 10 OS. Something is not quite right.
– Markus
Nov 10 '18 at 6:23
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What is a good Java library to zip/unzip files? [closed]
...g functionality (on streams and on filesystem) + lots of helper methods to test for files in an archive or add/remove entries.
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How can one print a size_t variable portably using the printf family?
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@Christoph: Nor is it in the latest draft, n3035.
– GManNickG
Mar 26 '10 at 16:48
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