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Linking static libraries to other static libraries
...rary from the subset of the .o files that contain them. This is difficult, time consuming and error prone. I'm not aware of any tools to help do this (not to say they don't exist), but it would make quite an interesting project to produce one.
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map vs. hash_map in C++
... but also iterate over all the keys in the map. I saved a large amount of time in lookup, but gained it back via the iterations, so I switched back to map and am looking for other ways to improve application performance.
– Erik Garrison
Sep 6 '10 at 21:36
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Error inflating when extending a class
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Sometimes the simplest things can be a problem :) good to know that both parameters are used for inflating.
– Warpzit
Feb 20 '12 at 12:19
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In Python how should I test if a variable is None, True or False
...tly more efficient and, cherry on the cake, more human readable.
In [1]: %timeit (1 == 1) == True
38.1 ns ± 0.116 ns per loop (mean ± std. dev. of 7 runs, 10000000 loops each)
In [2]: %timeit (1 == 1) is True
33.7 ns ± 0.141 ns per loop (mean ± std. dev. of 7 runs, 10000000 loops each)
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When should you use constexpr capability in C++11?
...f you call max with constant values it is explicitly calculated at compile time and not at runtime.
Another good example would be a DegreesToRadians function. Everyone finds degrees easier to read than radians. While you may know that 180 degrees is 3.14159265 (Pi) in radians it is much clearer wr...
Transform DateTime into simple Date in Ruby on Rails
I have a datetime column in db that I want to transform into a simple date when I show it to users.
6 Answers
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How to effectively work with multiple files in Vim
... Also, use the " mark to jump to where you were in the file last time.
– Chromium
May 28 '18 at 5:15
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How to step through Python code to help debug issues?
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Wow, I cannot believe I'm having a hard time finding a graphical pdb for linux/ubuntu. Am I missing something? I might have to look into making a SublimeText Plugin for it.
– ThorSummoner
Apr 6 '14 at 9:52
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Why would one omit the close tag?
...arn --whitespace *.php
It also handles --long tag conversion etc. for runtime/configuration compatibility.
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Why dict.get(key) instead of dict[key]?
...r i in range(100):
s = d[i]
Now timing these two functions using timeit
>>> import timeit
>>> print(timeit.timeit("getway({i:i for i in range(100)})","from __main__ import getway"))
20.2124660015
>>> print(timeit.timeit("lookup({i:i for i in range(100)})","from ...