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Unique (non-repeating) random numbers in O(1)?
...t doesn't resort to something like an O(N) search of previous values to do it. Is this possible?
22 Answers
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Why are preprocessor macros evil and what are the alternatives?
...ved a really good answer; I think that almost any programmer before even writing the first "Hello World" had encountered a phrase like "macro should never be used", "macro are evil" and so on, my question is: why? With the new C++11 is there a real alternative after so many years?
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How does a “stack overflow” occur and how do you prevent it?
How does a stack overflow occur and what are the best ways to make sure it doesn't happen, or ways to prevent one, particularly on web servers, but other examples would be interesting as well?
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public friend swap member function
...ful answer to the copy-and-swap-idiom there is a piece of code I need a bit of help:
2 Answers
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Difference between timestamps with/without time zone in PostgreSQL
... timestamp values stored differently in PostgreSQL when the data type is WITH TIME ZONE versus WITHOUT TIME ZONE ? Can the differences be illustrated with simple test cases?
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Importing from builtin library when module with same name exists
Situation:
- There is a module in my project_folder called calendar
- I would like to use the built-in Calendar class from the Python libraries
- When I use from calendar import Calendar it complains because it's trying to load from my module.
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to drawRect or not to drawRect (when should one use drawRect/Core Graphics vs subviews/images and wh
...rify the purpose of this question: I know HOW to create complicated views with both subviews and using drawRect. I'm trying to fully understand the when's and why's to use one over the other.
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Simulating tremor (from e.g. Parkinson's Disease) with the mouse on a webpage?
I'm working for a foundation that raises awareness for accessibility in the internet. For a presentation, we want to offer a small workshop that simulates different disabilities/impairments to people. This is done via a website created especially for this presentation.
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Is non-blocking I/O really faster than multi-threaded blocking I/O? How?
...antage of nonblocking or asynchronous I/O is that your thread can continue its work in parallel. Of course you can achieve this also using an additional thread. As you stated for best overall (system) performance I guess it would be better to use asynchronous I/O and not multiple threads (so reducin...
jQuery.inArray(), how to use it right?
First time I work with jQuery.inArray() and it acts kinda strange.
20 Answers
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