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Compare double to zero using epsilon
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Assuming 64-bit IEEE double, there is a 52-bit mantissa and 11-bit exponent. Let's break it to bits:
1.0000 00000000 00000000 00000000 00000000 00000000 00000000 × 2^0 = 1
The smallest representable number greater than 1:
1.0000 ...
Does static constexpr variable inside a function make sense?
...}
Possible program output:
value \ address of const is 1 564
value \ address of const is 2 3D4
value \ address of const is 3 244
value \ address of static is 1 C58
value \ address of static is 1 C58
value \ address of static is ...
Where are Docker images stored on the host machine?
...
648
The contents of the /var/lib/docker directory vary depending on the driver Docker is using for...
What are best practices for validating email addresses on iOS 2.0
...a-z0-9]+(-[a-z0-9]+)*\\.)+[a-z]{2,4}\\z";
NSString *regex2 = @"^(?=.{1,64}@.{4,64}$)(?=.{6,100}$).*";
NSPredicate *test1 = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", regex1];
NSPredicate *test2 = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", regex2];
return [test1 ev...
Select arrow style change
... 2rem;
}
If you need it to also work in IE update the svg arrow to base64 and add the following:
select::-ms-expand { display: none; }
background-image: url(data:image/svg+xml;base64,PHN2ZyBmaWxsPSdibGFjaycgaGVpZ2h0PScyNCcgdmlld0JveD0nMCAwIDI0IDI0JyB3aWR0aD0nMjQnIHhtbG5zPSdodHRwOi8vd3d3LnczLm9...
Best practices for styling HTML emails [closed]
... mean to add images as attachments, instead they should be included as base64-encoded strings to replace the url referenced in "normal" <img> tags, like so: <img alt="Embedded Image" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADIA...">
– Timo
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Modify Address Bar URL in AJAX App to Match Current State
...n you want to save the state, you serialize the object (using JSON and base64 encoding). You can then set the fragment of the href to this string.
var encodedState = base64(json(state));
var newLocation = oldLocationWithoutFragment + "#" + encodedState;
document.location = newLocation; // adds ne...
Execution of Python code with -m option or not
...sys; print(sys.version)" > pdb.py
python -m pdb
3.5.2 |Anaconda 4.1.1 (64-bit)| (default, Jul 5 2016, 11:41:13) [MSC v.1900 64 bit (AMD64)]
Use the -I flag to lock this down for production environments (new in version 3.4):
python -Im pdb
usage: pdb.py [-c command] ... pyfile [arg] ...
etc.....
Partly cherry-picking a commit with Git
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CascabelCascabel
398k6464 gold badges352352 silver badges307307 bronze badges
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Can't find the 'libpq-fe.h header when trying to install pg gem
... For me after run brew install postgressql i run ARCHFLAGS="-arch x86_64" gem install pg and works fine.
– overallduka
Oct 31 '14 at 17:05
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