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Measuring execution time of a function in C++

I want to find out how much time a certain function takes in my C++ program to execute on Linux . Afterwards, I want to make a speed comparison . I saw several time function but ended up with this from boost. Chrono: ...
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Merge PDF files

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Intersection and union of ArrayLists in Java

Are there any methods to do so? I was looking but couldn't find any. 23 Answers 23 ...
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How do I convert a decimal to an int in C#?

How do I convert a decimal to an int? 12 Answers 12 ...
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How do I assign an alias to a function name in C++?

It's easy to create a new name for a type, a variable or a namespace. But how do I assign a new name to a function? For example, I want to use the name holler for printf . #define is obvious... any other way? ...
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what is faster: in_array or isset? [closed]

This question is merely for me as I always like to write optimized code that can run also on cheap slow servers (or servers with A LOT of traffic) ...
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How do I group Windows Form radio buttons?

How can I group the radio buttons in Windows Form application (a lot like ASP.NET's radiobuttonlist!)? 9 Answers ...
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How do I search for an object by its ObjectId in the mongo console?

I've found this question answered for C# and Perl, but not in the native interface. I thought this would work: 12 Answers ...
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How to iterate over the files of a certain directory, in Java? [duplicate]

I want to process each file in a certain directory using Java. 4 Answers 4 ...
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Git copy file preserving history [duplicate]

I have a somewhat confusing question in Git. Lets say, I have a file dir1/A.txt committed and git preserves a history of commits ...