Tag Archives: C++20

Requires-clause

Posted on March 26, 2020 by

In this post we will talk about another C++20 feature related to constraining templates: requires-clause. Although C++20 is due to be published this year, it is not there yet; so we are talking about the future. However, this can already … Continue reading →

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Requires-expression

Posted on January 29, 2020 by

This post is about a C++20 feature, so we will be talking about the future. However, this is a very near feature, C++20 is expected to go out this year, and concepts look really stable, so the chances are high … Continue reading →

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Short-circuiting in meta-functions

Posted on December 23, 2019 by

Short-circuiting in logical operations is a very useful and an often used feature: Should cond_a() evaluate to false, cond_b() is guaranteed not to be evaluated. This is useful for two reasons. One is performance: if cond_b() is an expensive operation … Continue reading →

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String literals make bad ranges

Posted on September 25, 2019 by

C++20 will come with what we call “Ranges” library. Meanwhile, range interface has been supported ever since C++11 in one context: range-based for loop. A range-based for loop can detect anything that is a range and work with it. In … Continue reading →

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