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Unresolved external symbol in object files
...ration, but not a definition.
Example:
// A.hpp
class A
{
public:
void myFunc(); // Function declaration
};
// A.cpp
// Function definition
void A::myFunc()
{
// do stuff
}
In your case, the definition cannot be found. The issue could be that you are including a header file, which brings i...
How to safely upgrade an Amazon EC2 instance from t1.micro to large? [closed]
...
From my experience, the way I do it is create a snapshot of your current image, then once its done you'll see it as an option when launching new instances. Simply launch it as a large instance at that point.
This is my approach ...
What is the most robust way to force a UIView to redraw?
...hod viewDidLoad I fire off a URLRequest for data that is required by on of my subviews - a UIView subclass with drawRect overridden. When the data arrives from the cloud I start building my view hierarchy. the subclass in question gets passed the data and it's drawRect method now has everything it n...
Postgresql 9.2 pg_dump version mismatch
...alled version(s) of pg_dump:
find / -name pg_dump -type f 2>/dev/null
My output was:
/usr/pgsql-9.3/bin/pg_dump
/usr/bin/pg_dump
There are two versions installed. To update pg_dump with the newer version:
sudo ln -s /usr/pgsql-9.3/bin/pg_dump /usr/bin/pg_dump --force
This will create the ...
How to step back in Eclipse debugger?
...t to run them successfully is to extend the heap space in eclipse.ini.
In my case I've tried to use JIVE and Diver to debug an XML parsing program but always ended up freezing eclipse due to lack of resources. Diver could be tricky to run on linux 64bit, it works on ubuntu 32bit and possibly other ...
Spring get current ApplicationContext
I am using Spring MVC for my web application. My beans are written in " spring-servlet.xml " file
11 Answers
...
RESTfully design /login or /register resources?
I was designing a web app and then stopped to think about how my api should be designed as a RESTful web service. For now, most of my URI's are generic and might apply to various web apps:
...
Preferred method to store PHP arrays (json_encode vs serialize)
...I might occasionally come across the need to convert it to JSON for use in my web app but the vast majority of the time I will be using the array directly in PHP.
...
How to test multiple variables against a value?
...r the set version. Tuple's are very cheap to create and iterate over. On my machine at least, tuples are faster than sets so long as the size of the tuple is around 4-8 elements. If you have to scan more than that, use a set, but if you are looking for an item out of 2-4 possibilities, a tuple is...
CSS checkbox input styling
...
I create my own solution without label
input[type=checkbox] {
position: relative;
cursor: pointer;
}
input[type=checkbox]:before {
content: "";
display: block;
position: ...