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What is meant with “const” at end of function declaration? [duplicate]
...4) will internally correspond to something like Foo f; Foo_Bar(&f, 4). Now adding the const at the end (int Foo::Bar(int random_arg) const) can then be understood as a declaration with a const this pointer: int Foo_Bar(const Foo* this, int random_arg). Since the type of this in such case is cons...
Node.js: what is ENOSPC error and how to solve?
...ike ENOSPC - no space on drive? Sure, the error code makes sense once you know what it means (Error NO SPaCe), but why not just give users that info up front?
– Shadoninja
Jun 21 '19 at 15:16
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Python 3: ImportError “No Module named Setuptools”
...ols. Some Python packages used to use distutils for distribution, but most now use setuptools, a more complete package. Here is a question about the differences between them.
To install setuptools on Debian:
sudo apt-get install python3-setuptools
For an older version of Python (Python 2.x):
su...
Regular expression to match URLs in Java
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The best way to do it now is:
android.util.Patterns.WEB_URL.matcher(linkUrl).matches();
EDIT: Code of Patterns from https://github.com/android/platform_frameworks_base/blob/master/core/java/android/util/Patterns.java :
/*
* Copyright (C) 2007...
How can I convert a stack trace to a string?
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Fyi, the package has changed and the class is now at: org.apache.commons.lang3.exception.ExceptionUtils.
– schmmd
Nov 13 '13 at 23:18
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what are the .map files used for in Bootstrap 3.x?
...after you've combined and minified it, without impacting performance? Well now you can through the magic of source maps.
This article explains Source Maps using a practical approach.
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impro...
How do I get the fragment identifier (value after hash #) from a URL?
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@SchalkKeun luckily, now in '18 it's almost gone. But for those who still have to deal with that legend should be aware of it.
– Sebastiaan Ordelman
Jun 22 '18 at 9:45
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What is the purpose of using -pedantic in GCC/G++ compiler?
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-pedantic causes the compiler to actually comply to the C standard; so now it will produce a diagnostic message, as is required by the standard:
gcc -c -pedantic -std=c90 pedantic_test.c
pedantic_test.c:2:9: warning: ISO C forbids zero-size array ‘zero_size_array’ [-Wpedantic]
int zero...
In-place edits with sed on OS X
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This is now the other way around. sed -i '' <file> works but sed -i'' <file> no longer works
– Zohaib Amanzai
Jul 18 at 14:32
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Chrome Uncaught Syntax Error: Unexpected Token ILLEGAL [duplicate]
...ECMAScript 6. At the time of writing (2012), there were no backticks. But, now, yes, they should work, if the browser does support. This means, backticks are not cross browser compatible, meaning still risky. There are many users still using old desktop and mobile browsers. I would suggest to contin...