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When you exit a C application, is the malloc-ed memory automatically freed?
...point. Not all programs make it to graceful exits. Crashes and ctrl-C's, etc. will cause a program to exit in uncontrolled ways. If your OS did not free your heap, clean up your stack, delete static variables, etc, you would eventually crash your system from memory leaks or worse.
Interesting a...
Why would I use a templating engine? jsp include and jstl vs tiles, freemarker, velocity, sitemesh
... SiteMesh allow you to specify a base layout page (JSP, Velocity template, etc - both are JSP frameworks at their heart) where you can specify whatever you want and then just delegate to a "content" fragment/template for the main content. This means there would be just one file to move the header in...
What is AppDomain? [duplicate]
...rocess. Everything you usually think of as "per program" (static variables etc) is actually per-AppDomain. This is useful for:
plugins (you can unload an AppDomain, but not an assembly within an AppDomain)
security (you can run a set of code with specific trust levels)
isolation (you can run diffe...
(13: Permission denied) while connecting to upstream:[nginx]
...
Check the user in /etc/nginx/nginx.conf
Change ownership to user.
sudo chown -R nginx:nginx /var/lib/nginx
Now see the magic.
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What new capabilities do user-defined literals add to C++?
...eate our own types (i.e. classes), with potentially no overhead (inlining, etc.). We had the possibility to add operators to their types, to have them behave like similar built-in types, which enables C++ developers to use matrices and complex numbers as naturally as they would have if these have be...
Should you ever use protected member variables?
...like:
template <typename T, typename TContainer>
class Base
{
// etc.
protected
TContainer container ;
}
template <typename Key, typename T>
class DerivedMap : public Base<T, std::map<Key, T> > { /* etc. */ }
template <typename Key, typename T>
clas...
ssh: Could not resolve hostname [hostname]: nodename nor servname provided, or not known
...c to your Raspberry inside your local network, do this: On your Mac, edit /etc/hosts. Assuming the Raspberry has hostname "berry" and ip "172.16.0.100", add one line:
# ip hostname
172.16.0.100 berry
Now: ssh user@berry should work.
...
How can I add reflection to a C++ application?
...trospect a C++ class for its name, contents (i.e. members and their types) etc. I'm talking native C++ here, not managed C++, which has reflection. I realise C++ supplies some limited information using RTTI. Which additional libraries (or other techniques) could supply this information?
...
pip install mysql-python fails with EnvironmentError: mysql_config not found
...e path, but I think you're better off adding it permanently (ie add it to /etc/paths) if you plan to install MySQL-python in another environment.
(tested in OSX Mountain Lion)
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Bash Script : what does #!/bin/bash mean? [duplicate]
... unix shell, which might be bash or any other variant like ksh, dash, zsh, etc
– Karthik T
Dec 14 '12 at 3:10
When bas...