June 2017
Intermediate to advanced
532 pages
12h 59m
English
Content preview from C++17 STL Cookbook
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How it works...
We solved the whole complexity of the problem without any loop or manual comparison of items. We only provided a predicate function, which tells if two given characters are whitespace characters. Then we fed that predicate into std::unique and poof, all the excess whitespace vanished. While this chapter also contains some recipes where we had to fight a bit more to express our programs with STL algorithms, this algorithm is a really nice and short example.
How does this interesting combination work in detail? Let's have a look at a possible implementation of std::unique first:
template<typename It, typename P>It unique(It it, It end, P p){ if (it == end) { return end; } It result {it}; while (++it != end) { if (!p(*result, ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.