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Differences between std::make_unique and std::unique_ptr with new
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145
The motivation behind make_unique is primarily two-fold:
make_unique is safe for creating te...
What does 'require: false' in Gemfile mean?
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edited Jun 7 '18 at 6:11
sawa
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a...
What are the rules for the “…” token in the context of variadic templates?
In C++11 there are variadic templates like this one:
2 Answers
2
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I want to get the type of a variable at runtime
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132
So, strictly speaking, the "type of a variable" is always present, and can be passed around as...
Java to Clojure rewrite
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edited Sep 15 '14 at 4:25
d0c
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answered Mar 8 '11 at 1...
List comprehension: Returning two (or more) items for each item
...t;> list(chain.from_iterable((f(x), g(x)) for x in range(3)))
[2, 0, 3, 1, 4, 4]
Timings:
from timeit import timeit
f = lambda x: x + 2
g = lambda x: x ** 2
def fg(x):
yield f(x)
yield g(x)
print timeit(stmt='list(chain.from_iterable((f(x), g(x)) for x in range(3)))',
s...
What is a MIME type?
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edited Feb 6 '17 at 9:57
answered Sep 30 '10 at 6:46
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Why do we need message brokers like RabbitMQ over a database like PostgreSQL?
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112
Rabbit's queues reside in memory and will therefore be much faster than implementing this in a...
Inheriting from a template class in c++
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answered Jan 10 '12 at 21:16
celtschkceltschk
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PHP function to get the subdomain of a URL
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133
Here's a one line solution:
array_shift((explode('.', $_SERVER['HTTP_HOST'])));
Or using yo...