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What is the lifetime of a static variable in a C++ function?
...hat the destructors of static objects must run in the reverse order of the completion of their construction[1], and the order of construction may depend on the specific program run, the order of construction must be taken into account.
Example
struct emitter {
string str;
emitter(const strin...
How to access the local Django webserver from outside world
... e.g. 8000 to your server.
Check your firewall on your server whether incoming connections to the port in use are allowed!
Assuming you can access your Apache server from the outside successfully, you can also try this:
Stop the Apache server, so that port 80 is free.
Start the development ser...
How to check type of variable in Java?
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Java is a statically typed language, so the compiler does most of this checking for you. Once you declare a variable to be a certain type, the compiler will ensure that it is only ever assigned values of that type (or values that are sub-types of that type).
The exam...
Quick way to list all files in Amazon S3 bucket?
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I'd recommend using boto. Then it's a quick couple of lines of python:
from boto.s3.connection import S3Connection
conn = S3Connection('access-key','secret-access-key')
bucket = conn.get_bucket('bucket')
for key in bucket.list():...
Convert Iterator to ArrayList
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Better use a library like Guava:
import com.google.common.collect.Lists;
Iterator<Element> myIterator = ... //some iterator
List<Element> myList = Lists.newArrayList(myIterator);
Another Guava example:
ImmutableList.copyOf(myIterator);
or Apache C...
SQL Server Insert if not exists
...t connection executes the INSERT, i.e. a race condition. See stackoverflow.com/a/3791506/1836776 for a good answer on why even wrapping in a transaction doesn't solve this.
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“Content is not allowed in prolog” when parsing perfectly valid XML on GAE
...'utf-16'?>
Another possible scenario that causes this is when anything comes before the XML document type declaration. i.e you might have something like this in the buffer:
helloworld<?xml version="1.0" encoding="utf-8"?>
or even a space or special character.
There are some special...
Google Guava isNullOrEmpty for collections
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Handlebars/Mustache - Is there a built in way to loop through the properties of an object?
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Pass a PHP string to a JavaScript variable (and escape newlines) [duplicate]
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If you're not 5.2, try jsonwrapper from boutell.com boutell.com/scripts/jsonwrapper.html
– Tom Auger
Dec 22 '10 at 22:57
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