Marc Glisse marc.glisse at
Sat Jun 23 18:51:55 CEST 2012

On Tue, 19 Jun 2012, Torbjorn Granlund wrote:

> I don't think we require C99 for GMP, only C89.
> The ldexpl function was introduced with C99.

Would mpz_get_ld become acceptable with an appropriate autoconf test for 
ldexpl and a silly loop as a fallback?

Paul, what kind of guarantee would you document for the function? On 
platforms where long double is binary128 (and double is binary64), we 
would need a third round for a chance at maximal precision, and again it 
would be strange to have such a function without full precision...

Marc Glisse

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