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Bidirectional 1 to 1 Dictionary in C#
I am looking for a generic, bidirectional 1 to 1 Dictionary class in C# (2), ie. a BiDictionaryOneToOne<T, S> which is guaranteed to only contain one of each value and key (up to RefEquals anyway), and which can be searched using either key or value. Anyone know of one, or should I just impl...
Downcasting shared_ptr to shared_ptr?
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112
You can use dynamic_pointer_cast. It is supported by std::shared_ptr.
std::shared_ptr<Base&g...
How can I delete the current line in Emacs?
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213
C-a # Go to beginning of line
C-k # Kill line from current point
There is also
C-S-backspac...
Embedded MongoDB when running integration tests
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Here's an updated (for 2019) version of the accepted answer from @rozky (a lot has been changed in both the Mongo and Embedded MongoDB libraries).
package com.example.mongo;
import com.mongodb.BasicDBObject;
import com.mongodb.MongoClient;
import...
What is the difference between square brackets and parentheses in a regex?
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127
These regexes are equivalent (for matching purposes):
/^(7|8|9)\d{9}$/
/^[789]\d{9}$/
/^[7-9]...
What's the best way to unit test protected & private methods in Ruby?
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edited Jun 8 '11 at 2:38
John Bachir
20.6k2020 gold badges131131 silver badges202202 bronze badges
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Getting the docstring from a function
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251
Interactively, you can display it with
help(my_func)
Or from code you can retrieve it with
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What's a good Java, curses-like, library for terminal applications? [closed]
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edited Jan 13 '09 at 19:23
answered Jan 13 '09 at 17:06
B...
Design Patterns: Factory vs Factory method vs Abstract Factory
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256
All three Factory types do the same thing: They are a "smart constructor".
Let's say you want...
Threading in a PyQt application: Use Qt threads or Python threads?
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edited Apr 3 '12 at 15:33
answered Oct 29 '09 at 18:28
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