Is it? I'm mostly used to (pre-)C++11 and the only unusual operators I see are ^^T (which I presume accesses the metadata info of T) and [:e:] (which I assume somehow casts the enumerator metadata 'e' to a constant value of T).
And template for but I assume that's like inline for like in zig.
requires is also new (not sure exactly when that appeared, it's after the last time I wrote C++ in anger) although I think it's fairly clear what it means. I can only guess at the other two.
Not familiar with Zig but AFAICT `inline for` is about instructing the compiler to unroll the loop, whereas `template for` means it can be evaluated at compile time and each loop iteration can have a different type for the iteration variable. It's a bit crazy but necessary for reflection to work usefully in the way the language sets it up.
Well yes, but the _effect_ is to unroll the loop for runtime, if the inline-for survives that long.
A for loop executed during comptime is just
const stuff = comptime stuff: {
for (0...8) |i| {
// etc, build up some stuff
}
break :stuff some_stuff;
};
The difference is that a comptime block won't leave behind runnable 'residue', only whatever data is constructed for later. An inline for might not leave behind an unrolled loop either, but it can.
And template for but I assume that's like inline for like in zig.