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Dependent DLL is not getting copied to the build output folder in Visual Studio
... as in upgrade or remove). With this hack, at least you get a nice compile time error reminding you to remove this hack when you remove the dependency, and you still only need to update it in one place.
– jpmc26
Sep 21 '16 at 19:35
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How to return smart pointers (shared_ptr), by reference or by value?
...rence count, which opens up the risk of deleting something at the improper time. That alone should be enough reason to not return by reference. Interfaces should be robust.
The cost concern is nowadays moot thanks to return value optimization (RVO), so you won't incur a increment-increment-decremen...
UITableView Cell selected Color?
...e in the grouped table view? What if the cell is in the middle? Don't have time to test this.
– Maciej Swic
Jul 22 '13 at 8:15
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How to access class constants in Twig?
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Just to save your time. If you need to access class constants under namespace, use
{{ constant('Acme\\DemoBundle\\Entity\\Demo::MY_CONSTANT') }}
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Determine if a String is an Integer in Java [duplicate]
I'm trying to determine if a particular item in an Array of strings is an integer or not.
9 Answers
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When do Java generics require
...rce a downcast and to have the compiler guarantee that this is safe (no runtime exceptions).
Consider the case of List. The essence of my question is why a method that takes a type T and a List won't accept a List of something further down the chain of inheritance than T. Consider this contrived ex...
How to remove/delete a large file from commit history in Git repository?
...y git commit -a -m ... , and, zap, the repo was bloated by 2.2 gigs. Next time I made some edits, deleted the video file, and committed everything, but the compressed file is still there in the repository, in history.
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怎么往SetTimer的回调函数传递参数 - C/C++ - 清泛网 - 专注C/C++及内核技术
怎么往SetTimer的回调函数传递参数本文说明两个问题：1.windows的消息处理机制；2.怎么往SetTimer的回调函数传递参数。首先看第一个问题，我们都知道 windows是消 息驱动的...本文说明两个问题：1.windows的消息处理机制；2.怎么往SetT...
How to search for occurrences of more than one space between words in a line
How to search for occurrences of more than one space between words in a line
5 Answers
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How to join (merge) data frames (inner, outer, left, right)
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There is the data.table approach for an inner join, which is very time and memory efficient (and necessary for some larger data.frames):
library(data.table)
dt1 <- data.table(df1, key = "CustomerId")
dt2 <- data.table(df2, key = "CustomerId")
joined.dt1.dt.2 <- dt1[dt2]
merge...