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What is the difference between “long”, “long long”, “long int”, and “long long int” in C++?
...ecifiers, which shows the "mappings" of the specifiers to actual types (showing that the int is optional), a section of which is shown below:
Specifier(s) Type
------------- -------------
long long int long long int
long long long long int
long int long int
long ...
Is there a way to detect if a browser window is not currently active?
...activity periodically. When the user is not looking at the site (i.e., the window or tab does not have focus), it'd be nice to not run.
...
Detect encoding and make everything UTF-8
... know what the encoding of your strings is. It can be Latin1 (ISO 8859-1), Windows-1252 or UTF-8, or the string can have a mix of them. Encoding::toUTF8() will convert everything to UTF-8.
I did it because a service was giving me a feed of data all messed up, mixing UTF-8 and Latin1 in the same str...
What is the difference between Pan and Swipe in iOS?
...here's a conflict between pan and swipe. Most likely, your pan recognizer "wins" the conflict because its gesture is simpler / more general: A swipe is a pan but a pan may not be a swipe, so the pan recognizes first and excludes other recognizers.
You should be able to resolve this conflict using t...
How to get error message when ifstream open fails
...lying functions may not set errno at all (direct system calls on Linux, or Win32). This doesn't work on many real world implementations.
– strcat
Mar 12 '14 at 6:40
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What is the difference between include and extend in Ruby?
...ils about include, with its default behavior, assuming you've run the following code
class Klazz
include Mod
end
If Mod is already included in Klazz, or one of its ancestors, the include statement has no effect
It also includes Mod's constants in Klazz, as long as they don't clash
It gives Kla...
What are the pros and cons of performing calculations in sql vs. in your application
shopkeeper table has following fields:
13 Answers
13
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Benefits of EBS vs. instance-store (and vice-versa) [closed]
...stance storage that I see are cost-savings. Otherwise EBS-backed instances win. Eric mentioned all the advantages.
[2012-07-16] I would phrase this answer a lot different today.
I haven't had any good experience with EBS-backed instances in the past year or so. The last downtimes on AWS pretty m...
Why is SSE scalar sqrt(x) slower than rsqrt(x) * x?
...iplication, where my answer has a section on why rcpps is not a throughput win anymore. (Or a latency win), and numbers on divide throughput/latency.
– Peter Cordes
Apr 25 '18 at 11:38
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How can I change my Cygwin home folder after installation?
I just installed Cygwin, and it looks like the home directory in the bash prompt is on my Z: drive. That's not where I want it.
...