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What's the meaning of exception code “EXC_I386_GPFLT”?
...
I wondered why this appeared during my unit tests.
I have added a method declaration to a protocol which included throws; but the potentially throwing method wasn't even used in that particular test. Enabling Zombies in test sounded like too much trouble.
Turns out a...
Is it better to use std::memcpy() or std::copy() in terms to performance?
...py will have a slight, almost imperceptible performance loss. I just did a test and found that to be untrue: I did notice a performance difference. However, the winner was std::copy.
I wrote a C++ SHA-2 implementation. In my test, I hash 5 strings using all four SHA-2 versions (224, 256, 384, 512),...
How to write to Console.Out during execution of an MSTest test
...appearing is because the backend code is not running in the context of the test.
You're probably better off using Trace.WriteLine (In System.Diagnostics) and then adding a trace listener which writes to a file.
This topic from MSDN shows a way of doing this.
According to Marty Neal's and Dave A...
How to make an immutable object in Python?
...f, a, b):
self.a, self.b = a, b
It works both Python 2.x and 3.
Tests
# compile on-the-fly
import pyximport; pyximport.install() # $ pip install cython
from immutable import Immutable
o = Immutable(1, 2)
assert o.a == 1, str(o.a)
assert o.b == 2
try: o.a = 3
except AttributeError:
...
git rebase without changing commit timestamps
...="%at %s" $GIT_COMMIT); grep -m 1 "$__log" ../../hashlog | cut -d" " -f1); test -n "$__date" && export GIT_COMMITTER_DATE=$__date || cat'
If something goes wrong, just checkout git reflog or all the refs/original/ refs.
Furthormore, you can do the similar thing to the author's timestamp.
...
detach all packages while working in R
...,sep=""),detach,character.only=TRUE,unload=TRUE)
(edit: 6-28-19)
In the latest version of R 3.6.0 please use instead.
invisible(lapply(paste0('package:', names(sessionInfo()$otherPkgs)), detach, character.only=TRUE, unload=TRUE))
Note the use of invisible(*) is not necessary but can be useful to p...
Casting vs using the 'as' keyword in the CLR
... below:
using System;
using System.Diagnostics;
using System.Linq;
class Test
{
const int Size = 30000000;
static void Main()
{
object[] values = new object[Size];
for (int i = 0; i < Size - 2; i += 3)
{
values[i] = null;
values[i + 1...
How to use Elasticsearch with MongoDB?
...ttachments/1.6.0
These two plugins aren't necessary but they're good for testing queries and visualizing changes to your indexes.
bin/plugin --install mobz/elasticsearch-head
bin/plugin --install lukas-vlcek/bigdesk
Restart Elasticsearch.
sudo service elasticsearch restart
Finally index a co...
Python name mangling
... only get mangled when the class definition is parsed:
>>> Foo.__test = None
>>> Foo.__test
>>> Foo._Foo__test
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: type object 'Foo' has no attribute '_Foo__test'
Also, thos...
How do I migrate a model out of one django app and into a new one?
...
Not doing this might make tests fail too (they always seem to run full south migrations when creating their test database). I've done something similar before. Good catch Ihor :)
– odinho - Velmont
Oct 8 '14 at 1...