May 5, 2011 · sort() can be applied on both array and vector in C++ to sort or re-arrange elements . 1. C++ sort() in case of a vector: // importing vector, algorithm & iostream. using namespace …

Feb 19, 2015 · sort(mMyClassVector.begin(), mMyClassVector.end(), [](const MyClass & a, const MyClass & b) { return a.mProperty > b.mProperty; }); I'd like to use a lambda ...

Oct 16, 2009 · You could sort std::pair instead of just ints - first int is original data, second int is original index. Then supply a comparator that only sorts on the first int. Example: Your problem …

Jan 27, 2012 · TL;DR. Use any. They are almost the same. Boring answer. As usual, there are pros and cons. Use std::reverse_iterator:

Aug 9, 2017 · Like explained in other answers you need to provide a comparison function. If you would like to keep the definition of that function close to the sort call (e.g. if it only makes …

Aug 26, 2010 · This allows you to easy use of std::sort algorithm. Sorting itself will look like this: std::sort(X, X + 100, &CompareRecords); EDIT. You may even want to implement operator < …

You should use C++'s standard sort function, std::sort, declared in the <algorithm> header. When you sort using a custom sorting function, you have to provide a predicate function that says …

Nov 14, 2012 · It seems like set container does not have a sort function. And i am advised to use vector. But sets are able to store unique elements only. Q1: How can i sort a set depending on …

Dec 19, 2010 · The C++ standard specifies that the worst-case runtime of std::sort() is in O(n log n) - where n is number of sorted elements (cf. C++11, Section 25.4.1.1). The standard doesn't …

In particular, std::string::compare couldn't be used as a comparator, because it doesn't do what sort wants it to do: Return true if the first argument is less than the second, and return false …