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C++11 reverse range-based for-loop
...----
// --- Reversed iterable
template <typename T>
struct reversion_wrapper { T& iterable; };
template <typename T>
auto begin (reversion_wrapper<T> w) { return std::rbegin(w.iterable); }
template <typename T>
auto end (reversion_wrapper<T> w) { return std::rend...
Abort makefile if variable not set
...
TL;DR: Use the error function:
ifndef MY_FLAG
$(error MY_FLAG is not set)
endif
Note that the lines must not be indented. More precisely, no tabs must precede these lines.
Generic solution
In case you're going to test many variables, it's worth defining an au...
Git Bash is extremely slow on Windows 7 x64
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Problem is with $(__git_ps1) ... removing this makes everything superfast
– Hendy Irawan
Apr 7 '15 at 3:27
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How to force ASP.NET Web API to always return JSON?
...otiator : IContentNegotiator
{
private readonly JsonMediaTypeFormatter _jsonFormatter;
public JsonContentNegotiator(JsonMediaTypeFormatter formatter)
{
_jsonFormatter = formatter;
}
public ContentNegotiationResult Negotiate(
Type type,
Http...
Why is it impossible to override a getter-only property and add a setter? [closed]
... derivation, my code may break. e.g.
public class BarProvider
{ BaseClass _source;
Bar _currentBar;
public void setSource(BaseClass b)
{
_source = b;
_currentBar = b.Bar;
}
public Bar getBar()
{ return _currentBar; }
}
Since Bar cannot be set as per the BaseClass interface,...
How do I setup a SSL certificate for an express.js server?
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Other options for createServer are at: http://nodejs.org/api/tls.html#tls_tls_createserver_options_secureconnectionlistener
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Automatically import modules when entering the python or ipython interpreter
...roduction scripts.
For Ipython, see this tutorial on how to make a ipython_config file
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How to install Java SDK on CentOS?
...is, the lastest available version may be different.
java-1.7.0-openjdk.x86_64
The above package alone will only install JRE. To also install javac and JDK, the following command will do the trick:
$ yum install java-1.7.0-openjdk*
These packages will be installing (as well as their dependencie...
How to find list intersection?
...
Make a set out of the larger one:
_auxset = set(a)
Then,
c = [x for x in b if x in _auxset]
will do what you want (preserving b's ordering, not a's -- can't necessarily preserve both) and do it fast. (Using if x in a as the condition in the list compreh...
Pretty-print C++ STL containers
...ges:
#include <iostream>
#include <iterator>
#include <type_traits>
#include <vector>
#include <algorithm>
// This works similar to ostream_iterator, but doesn't print a delimiter after the final item
template<typename T, typename TChar = char, typename TCharTraits...