Rethinking... (Re: RFC: fp printing speedup...)

[Paolo Carlini]

Martin Sebor wrote:

> If I understand the issue correctly, the test case probably needs
> to make sure that results returned from both forms of widen() are
> consistent, even though the standard doesn't seem to explicitly
> require it (there are a number of other inconsistencies in locale
> due to this).

FYI, you posted something very similar to the testcase in the PR
in the STLPort forum, circa December, 2002:

#include <iostream>
#include <locale>

struct Ctype: std::ctype<char>
{
char do_widen(char c) const {
  return 'A' + c % 26;
}
};

int main()
{
  std::locale loc(std::locale::classic(), new Ctype);
  loc = std::cout.imbue(loc);
  std::cout << 123 << '\n';
  std::cout.imbue(loc);
}

If you basically concur with Nathan that using widen(array) is correct
I will close the PR immediately, otherwise perhaps suspend it 'til the
DR is really there...

Out of curiosity, can you tell us what your library does?

Paolo.