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Using std Namespace
...ng namespace std;. It imports all sorts of names into the global namespace and can cause all sorts of non-obvious ambiguities.
Here are some common identifiers that are in the std namespace: count, sort, find, equal, reverse. Having a local variable called count means that using namespace std won't...
How does tuple comparison work in Python?
I have been reading the Core Python programming book, and the author shows an example like:
4 Answers
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Why not use Double or Float to represent currency?
...lways been told never to represent money with double or float types, and this time I pose the question to you: why?
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Should I use 'border: none' or 'border: 0'?
Which of the two methods conforms to W3C standards? Do they both behave as expected across browsers?
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What is a plain English explanation of “Big O” notation?
I'd prefer as little formal definition as possible and simple mathematics.
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Maintain aspect ratio of div but fill screen width and height in CSS?
...ite to put together that has a fixed aspect ratio of approximately 16:9 landscape, like a video.
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OAuth 2.0: Benefits and use cases — why?
Could anyone explain what's good about OAuth2 and why we should implement it? I ask because I'm a bit confused about it — here's my current thoughts:
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Why use #ifndef CLASS_H and #define CLASS_H in .h file but not in .cpp?
...ny files #included by it, concatenate them all into one massive text file, and then perform syntax analysis and finally it will convert it to some intermediate code, optimize/perform other tasks, and finally generate the assembly output for the target architecture. Because of this, if a file is #in...
Xcode 4 - “Valid signing identity not found” error on provisioning profiles on a new Macintosh insta
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With Xcode 4.2 and later versions, including XCode 4.6, there is a better way to migrate your entire developer profile to a new machine. On your existing machine, launch Xcode and do this:
Open the Organizer (Shift-Command-2).
Select the...
Read an Excel file directly from a R script
... directly into R? Or should I first export the data to a text- or CSV file and import that file into R?
12 Answers
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