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C++ error: undefined reference to 'clock_gettime' and 'clock_settime'

I am pretty new to Ubuntu, but I can't seem to get this to work. It works fine on my school computers and I don't know what I am not doing. I have checked usr/include and time.h is there just fine. Here is the code: ...
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How to wait for several Futures?

Suppose I have several futures and need to wait until either any of them fails or all of them succeed. 8 Answers ...
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How should I print types like off_t and size_t?

I'm trying to print types like off_t and size_t . What is the correct placeholder for printf() that is portable ? 9 ...
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What is the difference between git clone and checkout?

What is the difference between git clone and git checkout ? 5 Answers 5 ...
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How to determine if a type implements a specific generic interface type

Assume the following type definitions: 12 Answers 12 ...
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event Action vs event EventHandler

Is there any different between declaring event Action<> and event EventHandler<> . 7 Answers ...
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How do I delete multiple rows in Entity Framework (without foreach)

I'm deleting several items from a table using Entity Framework. There isn't a foreign key / parent object so I can't handle this with OnDeleteCascade. ...
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Git status - is there a way to show changes only in a specific directory?

I would like to see a list of files modified since the last commit, as git status shows, but I care only about files located in a single directory. Is there a way to do this? I tried git status <directory> , but it seems this does something completely different (lists all changed files, as ...
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How can you do anything useful without mutable state?

I've been reading a lot of stuff about functional programming lately, and I can understand most of it, but the one thing I just can't wrap my head around is stateless coding. It seems to me that simplifying programming by removing mutable state is like "simplifying" a car by removing the dashboard:...
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Best way to extract a subvector from a vector?

Suppose I have a std::vector (let's call it myVec ) of size N . What's the simplest way to construct a new vector consisting of a copy of elements X through Y, where 0 ...