[OT] Modules dropped out of C++17

[Walter Bright via Digitalmars-d]

On 6/9/2015 4:25 AM, "Ola Fosheim =?UTF-8?B?R3LDuHN0YWQi?= 
<ola.fosheim.grostad+dlang at gmail.com>" wrote:
> When constexpr is part of the prototype you know that it isn't supposed to do
> substantial work.

That doesn't follow.

> Without it, you risk the compiler spending a lot of time computing
> constants/tables that should be done at runtime to save compile time and object
> code size. And since C++ programmers expect that level of control, it would have
> ended up as a pragma if it was not part of the language?

This is just made up problems.