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How to easily map c++ enums to strings
...:key_type const&, typename T::value_type const&). (Returning *this from operator() allows the chaining of operator(), like operator<< on std::ostreams)
template<typename T> struct map_init_helper
{
T& data;
map_init_helper(T& d) : data(d) {}
map_init_helper&a...
Design Patterns: Abstract Factory vs Factory Method
...omplicated refer to next diagram for better real-life example).
Example From The .NET Framework
DbFactoriesProvider is a Simple Factory as it has no sub-types. The DbFactoryProvider is an abstract factory as it can create various related database objects such as connection and command objects.
...
What is a Windows Handle?
...in computing) a handle is an abstraction which hides a real memory address from the API user, allowing the system to reorganize physical memory transparently to the program. Resolving a handle into a pointer locks the memory, and releasing the handle invalidates the pointer. In this case think of ...
How to add semicolon after method call when inside parameter list in IntelliJ IDEA?
...arch box, enter "Complete Current Statement".
Right-click on the entry and select "Add Keyboard shortcut"
With the First Stroke field hightlighted, enter your key combination. E.g., Ctrl+;, which will display as Ctrl+Semicolon
Click OK, and OK to save and exit.
You can opt to remove or keep the ex...
Can I use my existing git repo with openshift?
...rting PHP 5.4 cartridge (Apache+mod_php)
remote: Application directory "/" selected as DocumentRoot
remote: -------------------------
remote: Git Post-Receive Result: success
remote: Activation status: success
remote: Deployment completed with status: success
To ssh://23456789@myapp-namespace.rhclou...
Vagrant reverse port forwarding?
...ide the guest machine, and the last two are the service address as visible from the host machine.
– Eero
May 13 '13 at 12:33
...
Insert line after first match using sed
...he first line matched. Especially handy if you're adding a line that comes from a variable where you'd otherwise have to escape everything first using ${var//} before, or another sed statement etc.
This solution is a little less messy in scripts (that quoting and \n is not easy to read though), whe...
FixedThreadPool vs CachedThreadPool: the lesser of two evils
...similar question suggested they were better suited for longer lived tasks and with my very limited knowledge of multithreading, I considered the average life of the threads (several minutes) " long lived ".
...
Get Image size WITHOUT loading image into memory
...; this function identifies the file, but the actual image data is not read from the file until you try to process the data (or call the load method).
Digging deeper, we see that .open calls _open which is a image-format specific overload. Each of the implementations to _open can be found in a new ...
Using a custom typeface in Android
...ich I am creating.
I can individually change the typeface of each object from Code, but I have hundreds of them.
21 Answe...