One of the use-cases for {fmt} is to be able to translate the format
string, and use the arguments in a different order. Sometimes that means
some of those arguments may not even be used. That's why
println("nwidgets:", 42) is a valid call today - it's just that the
argument happens to not be used. This proposal would change the meaning of
all of that code. Of the 5 examples, 3 are valid code today and would
change meaning.

Also if the premise is that println(x, y, z) just prints x then y then z,
then having println("#{}:", 5, 6, 7) print "5: 6 7" doesn't really fit that
goal at all. This isn't how print works in Python.

We (all one of us) think this is a bad idea.

Barry

On Thu, May 11, 2023 at 7:55 AM Victor Zverovich via Std-Proposals <
std-proposals_at_[hidden]> wrote:

> I think overloading print to either take or not take a format string is
> not a good idea because it subtly changes code semantics depending on
> whether the first argument is a string or not. If you pick a different name
> for the functionality you are proposing then I won't be opposed but not
> particularly interested in this either because the usability benefits are
> minimal.
>
> Cheers,
> Victor
>
> On Wed, May 10, 2023 at 10:23 PM Andrew Tomazos via Std-Proposals <
> std-proposals_at_[hidden]> wrote:
>
>> Please find below a LIVE LINK to a short 2-page proposal:
>>
>> D2879R0 Proposal of Pythonesque std::print extensions
>>
>> https://docs.google.com/document/d/1E5y_osldYmdBYxUQh8sBlGIEOxJ0FoRiXAJaJD4XATQ
>>
>> > We propose extensions to std::print/ln such that the format string is
>> automatically deduced and/or extended from the arguments to std::print/ln -
>> in a similar fashion to the existing practice of the Python `print`
>> function, and like other similar functions from other languages.
>>
>> Feedback appreciated,
>>
>> Enjoy,
>> Andrew.
>>
>> --
>> Std-Proposals mailing list
>> Std-Proposals_at_[hidden]
>> https://lists.isocpp.org/mailman/listinfo.cgi/std-proposals
>>
> --
> Std-Proposals mailing list
> Std-Proposals_at_[hidden]
> https://lists.isocpp.org/mailman/listinfo.cgi/std-proposals
>