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When do I really need to use atomic instead of bool? [duplicate]
...ic by nature" unless it is an std::atomic*-something. That's because the standard says so.
In practice, the actual hardware instructions that are emitted to manipulate an std::atomic<bool> may (or may not) be the same as those for an ordinary bool, but being atomic is a larger concept with wi...
How to calculate the difference between two dates using PHP?
...s answer below
You can use strtotime() to convert two dates to unix time and then calculate the number of seconds between them. From this it's rather easy to calculate different time periods.
$date1 = "2007-03-24";
$date2 = "2009-06-26";
$diff = abs(strtotime($date2) - strtotime($date1));
$year...
Runtime vs. Compile time
What is the difference between run-time and compile-time?
28 Answers
28
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Extract a regular expression match
... wraps all the existing regular expression operates in a consistent syntax and adds a few that are missing:
library(stringr)
str_locate("aaa12xxx", "[0-9]+")
# start end
# [1,] 4 5
str_extract("aaa12xxx", "[0-9]+")
# [1] "12"
...
How to remove certain characters from a string in C++?
... How does this work? Is it not a double negative to use erase and remove? To me this reads: "erase the characters that are in positions where ()- aren't." And since each one is done at a time, shouldn't it remove ALL characters? I've read the documentation on both functions, and this ma...
django-debug-toolbar not showing up
I looked at other questions and can't figure it out...
26 Answers
26
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Custom Cell Row Height setting in storyboard is not responding
...
Right answer #3, and specifically because this answer applies to Interface Builder/Storyboards. If you select the cell in IB, then the Size Inspector shows Row Height at the top (with a "custom" checkbox), but if you select the whole table vi...
Is there a Google Voice API? [closed]
...
Well...
These are PHP.
There is an sms one from google here.
And github has one here.
Another sms one is here. However, this one has a lot more code, so it may take up more space.
share
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How is Docker different from a virtual machine?
I keep rereading the Docker documentation to try to understand the difference between Docker and a full VM. How does it manage to provide a full filesystem, isolated networking environment, etc. without being as heavy?
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How to view method information in Android Studio?
...ppear with a description of what the method does, what the parameters mean and what it returns. Is there a way to get Android Studio to do the same thing?
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