Category: C++

We’ve had a couple of ways to spell functions for a long time: And we’ve had a shortcut for that second one for a while, too: (Aside: notice where [[nodiscard]] is positioned, since C++23’s P2173, to apply to the lambda’s call operator.) All these ways to spell functions look the…

The Set-up In C++, this doesn’t work: The compiler complains, quite rightly: Despite the fact that twice_square is a constexpr function, its parameter x is not constexpr. We can’t use it in a static_assert, we can’t pass it to a template, we can’t call an immediate (consteval) function with it….

A lot has already been said in the blogosphere about the use of immediately-invoked lambda expressions (IILEs) for initialization, and they’re certainly very useful. In C++20, P0428 gives us “familiar template syntax” for lambdas. Now, instead of writing a regular generic lambda: we have the option to use “familiar template…

I’ve been programming in C++ for almost a quarter of a century now. I grew up, professionally, with C++, and in many ways, it grew up along with me. For someone who is used to C++, even used to recently-standardised C++, it’s hard not to feel apprehension when looking at…

TL;DR: The C++ committee isn’t following some sort of agenda to ignore the needs of game programmers, and “modern” C++ isn’t going to become undebuggable. — Over the past week there has been an ongoing conversation on Twitter about how many people — especially those in the games industry —…

Note: the following applies to Microsoft’s compiler only — not to GCC or Clang. Pointers-to-member-functions (PMFs) are a bit off the beaten track in C++. They aren’t very syntactically pleasing, and they aren’t as easy to deal with as regular pointers-to-free-functions (PFFs). But they still see use, particularly in pre-C++11…

Last week, a little fewer than 150 C++ programmers gathered in Aspen, CO for C++Now 2018. This year the conference was scheduled before Mother’s Day, so with it being quite a bit earlier than usual, I was half-expecting snow and travel delays. In fact last week turned out to be…

Last week in Bellevue, WA, around 1100 C++ programmers got together for CppCon. I love this conference – it’s a chance to meet up with my existing C++ community friends and make new ones, to learn new techniques and explore parts of C++, and to get excited about where C++…

What does default construction mean? Why do we write default constructors? When and why should we require them? I’ve been pondering these questions lately. One of the great things that C++ gets right is that it grants programmers the ability to create types that behave like built-in types. Many languages…