From: Peter Dimov (pdimov_at_[hidden])
Date: 2019-11-27 00:24:38
Gavin Lambert wrote:
> On 27/11/2019 06:46, Peter Dimov wrote:
> > Vinnie Falco wrote:
> >
> >> In which use-cases do you anticipate the need for a constexpr
> >> static_string?
> >
> > When manipulating strings at compile time? Such as s1 += s2?
>
> Wouldn't that use case be better served with an immutable string and
> operator+?
Not in general.
constexpr string_view f( int x );
constexpr auto g( int n )
{
fixed_string<512> s;
for( int i = 0; i < n; ++i )
{
s += f( i );
}
return s;
}
You can rewrite this specific example using recursion but in general, it'd
be painful and unreadable.