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Open another application from your own (intent)
I know how to update my own programs, and I know how to open programs using the a predefined Uri (for sms or email for example)
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How is the undo tree used in Vim?
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See also :h undo-redo, which lists all the commands and their usage.
There are two ways to traverse the undo tree. One is to go "back in time". g+ and g- will traverse all of the nodes in the tree in chronological or reverse-chronological order (which can be a bit co...
Magic number in boost::hash_combine
...ash_combine template function takes a reference to a hash (called seed ) and an object v . According to the docs , it combines seed with the hash of v by
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How to parse a string to an int in C++?
...at's the C++ way of parsing a string (given as char *) into an int? Robust and clear error handling is a plus (instead of returning zero ).
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How to write trycatch in R
...t wrapped insided a function (unlike that
# for the condition handlers for warnings and error below)
},
error=function(cond) {
message(paste("URL does not seem to exist:", url))
message("Here's the original error message:")
message(cond...
How to deserialize a list using GSON or another JSON library in Java?
... Video[].class);
This way you avoid all the hassle with the Type object, and if you really need a list you can always convert the array to a list, e.g.:
List<Video> videoList = Arrays.asList(videoArray);
IMHO this is much more readable.
In Kotlin this looks like this:
Gson().fromJson(...
Passing references to pointers in C++
... reference to a pointer in C++. However, my attempts to do so are failing, and I have no idea why.
10 Answers
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gdb: how to print the current line or find the current line number?
list commands prints a set of lines, but I need one single line, where I am and where an error has probably occurred.
5 An...
How to set background color of a View
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@delive - Come again? Color.GREEN is not deprecated, and includes the alpha byte. It's value is 0xff00ff00, exactly the same as what's suggested in the answer, except it also has the benefit of being human-readable. Most developers would prefer a human-readable solution.
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Should Gemfile.lock be included in .gitignore?
I'm sort of new to bundler and the files it generates. I have a copy of a git repo from GitHub that is being contributed to by many people so I was surprised to find that bundler created a file that didn't exist in the repo and wasn't in the .gitignore list.
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