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Compare double to zero using epsilon
...ble can store exponents less than the exponent of epsilon.
You can't tell from this code alone whether it makes sense or not to use epsilon specifically as the bound, you need to look at the context. It may be that epsilon is a reasonable estimate of the error in the calculation that produced someV...
How to iterate through SparseArray?
...keyAt(int index) Given an index in the range 0...size()-1, returns the key from the indexth key-value mapping that this SparseArray stores." so it works fine for me even for the case described by you.
– Ruzanna
Mar 3 '12 at 17:13
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What is the difference between HTTP_HOST and SERVER_NAME in PHP?
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The HTTP_HOST is obtained from the HTTP request header and this is what the client actually used as "target host" of the request. The SERVER_NAME is defined in server config. Which one to use depends on what you need it for. You should now however rea...
RegEx for matching UK Postcodes
...xactly what you want but would be a good starting point. The RegEx differs from the XML slightly, as a P character in third position in format A9A 9AA is allowed by the definition given.
The RegEx supplied by the UK Government was:
([Gg][Ii][Rr] 0[Aa]{2})|((([A-Za-z][0-9]{1,2})|(([A-Za-z][A-Ha-hJ-...
How do you render primitives as wireframes in OpenGL?
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From http://cone3d.gamedev.net/cgi-bin/index.pl?page=tutorials/ogladv/tut5
// Turn on wireframe mode
glPolygonMode(GL_FRONT, GL_LINE);
glPolygonMode(GL_BACK, GL_LINE);
// Draw the box
DrawBox();
// Turn off wireframe mode
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Ansible: Set variable to file content
...p will work with local files, not remote files.
Here's a complete example from the docs:
- hosts: all
vars:
contents: "{{ lookup('file', '/etc/foo.txt') }}"
tasks:
- debug: msg="the value of foo.txt is {{ contents }}"
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Where can I download Spring Framework jars without using Maven?
...s list of mirrors current
I found this maven repo where you could download from directly a zip file containing all the jars you need.
http://maven.springframework.org/release/org/springframework/spring/
http://repo.spring.io/release/org/springframework/spring/
Alternate solution: Maven
The solutio...
Why are Python's 'private' methods not actually private?
...utes of their superclasses. It's not designed to prevent deliberate access from outside.
For example:
>>> class Foo(object):
... def __init__(self):
... self.__baz = 42
... def foo(self):
... print self.__baz
...
>>> class Bar(Foo):
... def __init...
Converting from a string to boolean in Python?
Does anyone know how to do convert from a string to a boolean in Python? I found this link . But it doesn't look like a proper way to do it. I.e. using built-in functionality, etc.
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Variable declared in for-loop is local variable?
...uter i by a different name.
N.B:
Please note, C#'s scoping rules differ from C++'s scoping rules. In C++ variables are only in scope from where they are declared until the end of the block. Which would make your code a valid construct in C++.
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