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Difference between `const shared_ptr` and `shared_ptr`?
...const T> p; ---> const T * const p; <=> T const * const p; : p and *p are const.
The same holds for weak_ptr and unique_ptr.
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How does Duff's device work?
I've read the article on Wikipedia on the Duff's device , and I don't get it. I am really interested, but I've read the explanation there a couple of times and I still don't get it how the Duff's device works.
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Forward declaration of nested types/classes in C++
...s someone know why it is not possible ? It seems there is valid use cases, and this lack prevents architecture consistency in some situations.
– Maël Nison
Nov 1 '12 at 16:10
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how to read value from string.xml in android?
...any rich text styling applied to the string.
Reference: https://developer.android.com/guide/topics/resources/string-resource.html
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PHP random string generator
I'm trying to create a randomized string in PHP, and I get absolutely no output with this:
59 Answers
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How to use MDC with thread pools?
In our software we extensively use MDC to track things like session IDs and user names for web requests. This works fine while running in the original thread. However, there's a lot of things that need to be processed in the background. For that we use the java.concurrent.ThreadPoolExecutor and j...
Programmatically scroll to a specific position in an Android ListView
... answered Sep 26 '11 at 21:39
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Does MSTest have an equivalent to NUnit's TestCase?
... feature!
To use it, just install the NuGet packages MSTest.TestFramework and MSTest.TestAdapter (both pre-release as of now).
Older answer:
If don't have to stick with MSTest and you're just using it for being able to run the tests via Test Explorer because you only have a Visual Studio Express ...
Group by multiple columns in dplyr, using string vector input
...orm(100)
)
# Columns you want to group by
grp_cols <- names(df)[-3]
# Convert character vector to list of symbols
dots <- lapply(grp_cols, as.symbol)
# Perform frequency counts
df %>%
group_by_(.dots=dots) %>%
summarise(n = n())
output:
Source: local data frame [9 x 3]
Grou...
Getting current unixtimestamp using Moment.js
...to get the Unix TimeStamp using Moment.js.
I can find many functions which convert timestamp to date in moment.js.
I know that I can easily get the unix timestamp by using the following JavaScript function: Math.floor(new Date().getTime()/1000) .
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