Minor fixes in docs

[jamadagni]

cppfront/docs/cpp2/declarations.md

Line 51 in 61e68bb

// Omit name => anonymous function (aka 'lamba')

lamba → lambda

cppfront/docs/cpp2/objects.md

Line 82 in 61e68bb

std::cout buf[0]; // ok, a has been initialized

insert <<

cppfront/docs/cpp2/objects.md

Line 71 in 61e68bb

- that definite first use must be of the form `obj = value;` which is a constructor call, or else pass `obj` as an `out` argument to an `out` parameter (which is also effectively a constructor call, and performs the construction in the callee).

End of long sentence: construction in the callee or caller?

[jamadagni]

Also

cppfront/docs/cpp2/functions.md

Line 454 in 8c9e810

Finally, at expression scope (aka "lamba/temporary") functions/objects aren't named, and the trailing `;` is optional:

lamba → lambda

Should there be a global search replace for this? 🤔

Ohkay the only one other place I found this is:

cppfront/include/cpp2util.h

Line 1312 in 8c9e810

// CPP2_UFCS: Variadic macro generating a variadic lamba, oh my...

[ 🙂 lamba in Hindi means tall, and I have had that word used to refer to my 6′3″ height 😉 ]

[DyXel]

You can/should open a PR if you have the time, first time contributors will need to sign a CLA, but if you plan on contributing more in the future its probably a good idea to do it early 🙂

[jamadagni]

@DyXel yes I can do that and have already forked the repo prior to this evening's post. [Not to mention would be a point of pride to have my teensy contribution included.]

End of long sentence: construction in the callee or caller?

But how about things like the above where I'm not sure?

[DyXel]

But how about things like the above where I'm not sure?

Asking is the right thing to do.

construction in the callee or caller?

In the callee, so this is correct. Essentially, any out argument in a function needs to be assigned to first, which would need to do the necessary operations to construct and/or set a meaningful value to the object, but this happens within the function, not outside of it. The next section explains it more clearly: https://hsutter.github.io/cppfront/cpp2/functions/.

[hsutter]

Thanks! I'll take a look at the PR, just sent you a CLA.

- that definite first use must be of the form obj = value;which is a constructor call, or else passobjas anoutargument to anout parameter (which is also effectively a constructor call, and performs the construction in the callee).

End of long sentence: construction in the callee or caller?

In the callee. The callee ensures that the constructor is called for its out parameter if the argument isn't constructed yet (and performs the call), and that's what makes any function with an out parameter effectively a delegating constructor for that parameter.