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Best practices for circular shift (rotate) operations in C++
...,7 which is slower and takes more bytes than rol edi,7 on some CPUs (especially AMD, but also some Intel), when BMI2 isn't available for rorx eax,edi,25 to save a MOV.
MSVC: x86-64 CL19: Only recognized for constant-count rotates. (The wikipedia idiom is recognized, but the branch and AND aren't op...
What's a good way to extend Error in JavaScript?
...nvironments set the stack property, but fileName and lineNumber are practically useless to be used in inheritance.
So, the minimalistic approach is:
function MyError(message) {
this.name = 'MyError';
this.message = message;
this.stack = (new Error()).stack;
}
MyError.prototype = new Er...
In Java 8 how do I transform a Map to another Map using a lambda?
...rEach((s, integer) -> map2.put(s, integer));
And because we're just calling an existing method we can use a method reference, which gives us:
map.forEach(map2::put);
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Python __str__ versus __unicode__
...onfusing, but in 2.x we're stuck with them for compatibility reasons. Generally, you should put all your string formatting in __unicode__(), and create a stub __str__() method:
def __str__(self):
return unicode(self).encode('utf-8')
In 3.0, str contains characters, so the same methods are nam...
Rename Files and Directories (Add Prefix)
I would like to add prefix on all folders and directories.
10 Answers
10
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Workflow for statistical analysis and report writing
... for data analysis related to custom report writing? The use-case is basically this:
14 Answers
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Is it possible to target older iOS versions when using Xcode 4.2 and iOS 5 SDK?
... debugging. I am only able to debug and test on my iphone 4 with iOS 5 installed.
8 Answers
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Include all existing fields and add new fields to document
...t aggregation stage where I can instruct it to add a new field and include all existing fields, without having to list all the existing fields.
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How can I get the version defined in setup.py (setuptools) in my package?
...
Interrogate version string of already-installed distribution
To retrieve the version from inside your package at runtime (what your question appears to actually be asking), you can use:
import pkg_resources # part of setuptools
version = pkg_resources.require("MyP...
Can I use a collection initializer for Dictionary entries?
...
@Nyerguds: what? var literally just saves you keystrokes, it's implicitly strongly typed.
– drzaus
Feb 24 '14 at 18:24
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