In [conv.lval] p3.4, the result of lvalue-to-rvalue conversion is described as follows: Otherwise, the object indicated by the glvalue is read ([defns.access]), and the value contained in the obje...

I've been reading parts of https://eel.is/c++draft/exec and other related articles regarding this topic. I know what schedulers, receivers, and senders are. However, I don't see how these interacti...

In C++26, reading uninitialized variables is no longer undefined, it's "erroneous" now (What is erroneous behavior? How is it different from undefined behavior?). However, the wording for...

Since C++26, std::breakpoint and std::breakpoint_if_debugging is provided. The std::breakpoint is an "unconditional breakpoint", it breaks program whatever debugging mode or not. From my ...

C++26 has introduced erroneous behavior in addition to undefined, unspecified, and implementation-defined behavior (see Undefined, unspecified and implementation-defined behavior). How is this new ...

When I compile the following code, I get a warning (https://godbolt.org/z/Tx7v6jWf1): void foo() { int _; // warning: name-independent declarations only available with // '-std=c++2c' or '-std=g...

Pack indexing was introduced in C++26 and I was hoping for this feature to have a significant impact on metaprogramming stuff, especially for indexing packs which would otherwise require workaround...

As far as I know, static reflection is currently on the roadmap for C++26. The reflection TS proposes a type-based syntax, but a value-based syntax has also been proposed in the meantime. In P2560 ...

C++20 has made it possible to default comparison operators, including the three-way comparison like this. <=> can have a deduced return type, but other operators can't: struct S { friend aut...

Since C++11, we are able to do floating point math at compile time. C++23 and C++26 added constexpr to some functions, but not to all. constexpr floating point math is weird in general, because the...