More than 30 people were killed in Pakistan where dozens more were injured Iran has been struck by its most powerful earthquake for more than 50 years, with tremors felt across Pakistan, India and the Middle East. The epicentre of the 7.8-magnitude quake was near the south-eastern city of Khash, close to Pakistan. The quake struck deep and in a remote region, apparently limiting casualties. Irania
The last couple of decades have brought forth major changes to our society. Perhaps the most prominent one is the proliferation of computing devices. By 2021 it is safe to say that the number of computing devices exceeds the number of human beings in any given living or work space in the developed world. A closely related trend is that of connectivity. Devices and their owners are connected, formi
中3女子です。 今回は、みんな大好きユーザ定義リテラルについて。 ユーザ定義リテラルは、値(整数、不動小数点数、文字列)に対するプログラマブルなサフィックスを定義することができる機能である。 例えば糖衣構文や単位を持った値を扱うために用いられる。 { constexpr auto duration = 4_mins + 33_secs; } ユーザ定義リテラルはいらない子か ところで、このユーザ定義リテラルは、方々で微妙な子扱いされている。 というのも、そもそもユーザ定義リテラルは直観的な記述を可能とするものであるはずなのだが、その用法には一見非直観的な落とし穴がある。 例えばユーザ定義リテラルの識別子は、アンダースコアで始めなければならない。 なぜなら、アンダースコアで始まらないサフィックスは、すべて予約されているからだ。 プログラマがアンダースコアで始まらないユーザ定義リテラルを定義し
Edit: based on suggestions from readers, the best solution is down to 162 characters! Read to the end to see how A highlight of PyCon each year for me is working on the little coding challenges offered by companies in the expo center. I love testing my Python prowess against the problems they pose (and being rewarded with a branded mug or T-shirt!) This year, several of the challenges involved wha
Welcome to Py4J¶ Py4J enables Python programs running in a Python interpreter to dynamically access Java objects in a Java Virtual Machine. Methods are called as if the Java objects resided in the Python interpreter and Java collections can be accessed through standard Python collection methods. Py4J also enables Java programs to call back Python objects. Py4J is distributed under the BSD license.
tl;dr Method resolution is expensive, so method caches are crucial to invocation performance. Your Ruby code probably calls methods kind of often, so invocation performance matters. MRI's method cache invalidation strategy is quite naive, leading to very low hit rates in most Ruby code. I wrote some patches that substantially improve the situation. This blog post is surprisingly uninflammatory. Th
Introduction The pipe Go package offers an easy way for Go programs to make use of other applications available in the system via a Unix-like pipeline mechanism. The input and output streams in such pipelines do work as streams, so large content can go across the pipeline without being loaded entirely in memory. The following blog post introduces the concept: http://blog.labix.org/2013/04/15/unix-
+++++ +++++ initialize counter (cell #0) to 10 [ use loop to set 70/100/30/10 > +++++ ++ add 7 to cell #1 > +++++ +++++ add 10 to cell #2 > +++ add 3 to cell #3 > + add 1 to cell #4 <<<< - decrement counter (cell #0) ] > ++ . print 'H' > + . print 'e' +++++ ++ . print 'l' . print 'l' +++ . print 'o' > ++ . print ' ' << +++++ +++++ +++++ . print 'W' > . print 'o' +++ . print 'r' ----- - . print 'l'
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So someone shoulder-taps you and asks you to explain the concepts behind JavaScript Inheritance to them. In my eyes you’ve got a few options. The Terminology Play You mention that it’s prototypal inheritance, not prototypical and pretty much gloss over the rest, comfortable in your superiority in terminology. You may go as far as saying “Objects just come from other Objects because there aren’t an
Since the design document for cpp11-migrate, the C++11 migrator tool, was first proposed in early December 2012 development has been making steady progress. In this article I'll talk about what's been implemented in cpp11-migrate so far, what's coming up, and how you can get involved. The purpose of the C++11 Migrator is to do source-to-source translation to migrate existing C++ code to use C++11
Hacking Secret Ciphers with Python Note: The second edition of this book is available under the title Cracking Codes with Python Hacking Secret Ciphers with Python teaches complete beginners how to program in the Python programming language. The book features the source code to several ciphers and hacking programs for these ciphers. The programs include the Caesar cipher, transposition cipher, sim
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