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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 ...
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...
Reading string from input with space character? [duplicate]
...ewline ('\n') take input. Then with the %*c it reads the newline character from the input buffer (which is not read), and the * indicates that this read in input is discarded (assignment suppression), as you do not need it, and this newline in the buffer does not create any problem for next inputs t...
Should programmers use SSIS, and if so, why? [closed]
... developer for 10.
The value of SSIS is as a workflow engine to move data from one spot to another with maybe some limited transformation and conditional branching along the way. If your packages contain a lot of script then your team is using SSIS for the wrong tasks or isn't comfortable with SQL ...
What is an example of the Liskov Substitution Principle?
... to model this with inheritance. However if in code you made Square derive from Rectangle, then a Square should be usable anywhere you expect a Rectangle. This makes for some strange behavior.
Imagine you had SetWidth and SetHeight methods on your Rectangle base class; this seems perfectly logical...
How do I subtract minutes from a date in javascript?
...is pseudo code into working js [don't worry about where the end date comes from except that it's a valid javascript date].
...
Angular.js: How does $eval work and why is it different from vanilla eval?
...t exactly is $eval doing? Why does it need its own mini parsing language?
From the docs:
Expressions are JavaScript-like code snippets that are usually placed in bindings such as {{ expression }}. Expressions are processed by $parse service.
It's a JavaScript-like mini-language that limits wh...
Split a module across several files
...e is to make use of pub use, which will allow you to re-export identifiers from other modules. There is precedent for this in Rust's std::io crate where some types from sub-modules are re-exported for use in std::io.
Edit (2019-08-25): the following part of the answer was written quite some time...
What's wrong with cplusplus.com?
...ow you how cpluscplus.com can get it wrong.
Consider std::remove function from <algorithm>.
The fact is thatstd::remove doesn't remove the item from the container. Its because std::remove works with a pair of iterators only and does not know anything about the container which actually contai...
How SID is different from Service name in Oracle tnsnames.ora
...so give it any other
name you want.
SERVICE_NAME is the new feature from
oracle 8i onwards in which database
can register itself with listener. If
database is registered with listener
in this way then you can use
SERVICE_NAME parameter in tnsnames.ora
otherwise - use SID in tnsnam...