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How do you properly use namespaces in C++?
...
Namespaces are packages essentially. They can be used like this:
namespace MyNamespace
{
class MyClass
{
};
}
Then in code:
MyNamespace::MyClass* pClass = new MyNamespace::MyClass();
Or, if you want to always use a specific namespace, you can do this:
using namespace MyNam...
std::vector versus std::array in C++
...red over another? What are the pros and cons of each? All my textbook does is list how they are the same.
5 Answers
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live output from subprocess command
...a log-file) the output information, and check for any errors. The problem is, I have no idea how the code is progressing. If I run it directly from the command line, it gives me output about what iteration its at, what time, what the next time-step is, etc.
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How do I find the MySQL my.cnf location
Is there a MySQL command to locate the my.cnf configuration file, similar to how PHP's phpinfo() locates its php.ini ?
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What is the difference between Left, Right, Outer and Inner Joins?
... a Lockers table. In SQL, the first table you specify in a join, Students, is the LEFT table, and the second one, Lockers, is the RIGHT table.
Each student can be assigned to a locker, so there is a LockerNumber column in the Student table. More than one student could potentially be in a single loc...
Detect when an image fails to load in Javascript
Is there a way to determine if a image path leads to an actual image, Ie, detect when an image fails to load in Javascript.
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What is “pom” packaging in maven?
...een googling quite a bit. It seems like the top level pom.xml files in this project have the packaging type set as pom .
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What are the differences between delegates and events?
...on adds a layer of abstraction and protection on the delegate instance. This protection prevents clients of the delegate from resetting the delegate and its invocation list and only allows adding or removing targets from the invocation list.
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Convert SVG to PNG in Python
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The answer is "pyrsvg" - a Python binding for librsvg.
There is an Ubuntu python-rsvg package providing it. Searching Google for its name is poor because its source code seems to be contained inside the "gnome-python-desktop" Gnome pro...
Quickly create large file on a Windows system
...util file createnew <filename> <length>
where <length> is in bytes.
fsutil requires administrative privileges though.
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