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John Carmack's Unusual Fast Inverse Square Root (Quake III)
...Quake III source code which calculates the inverse square root of a float, 4x faster than regular (float)(1.0/sqrt(x)) , including a strange 0x5f3759df constant. See the code below. Can someone explain line by line what exactly is going on here and why this works so much faster than the regular i...
Redirect to named url pattern directly from urls.py in django?
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If you are on Django 1.4 or 1.5, you can do this:
from django.core.urlresolvers import reverse_lazy
from django.views.generic import RedirectView
urlpatterns = patterns('',
url(r'^some-page/$', RedirectView.as_view(url=reverse_lazy('my_named_...
Why are flag enums usually defined with hexadecimal values
... 1 << 0,
Flag2 = 1 << 1,
Flag3 = 1 << 2,
Flag4 = 1 << 3,
Flag5 = 1 << 4
}
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format statement in a string resource file
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edited Oct 24 '16 at 9:26
Sufian
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How do I test for an empty string in a Bash case statement?
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4
I use a simple fall through. no parameters passed ($1="") will be caught by the second case stat...
Installing Latest version of git in ubuntu
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345
The Ubuntu git maintainers team has a PPA just for that
ppa:git-core/ppa
Just do:
sudo add-...
Remove first 4 characters of a string with PHP
How can I remove the first 4 characters of a string using PHP?
7 Answers
7
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How can I add a boolean value to a NSDictionary?
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edited Feb 12 '15 at 19:45
radiovisual
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Referencing another schema in Mongoose
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184
It sounds like the populate method is what your looking for. First make small change to your pos...
Convert a float64 to an int in Go
How does one convert a float64 to an int in Go? I know the strconv package can be used to convert anything to or from a string, but not between data types where one isn't a string. I know I can use fmt.Sprintf to convert anything to a string, and then strconv it to the data type I need, but th...