Adrien Prost-Boucle <adrien.prost-boucle at laposte.net> writes: This page, at the end, tends to discourage playing with rounding mode too frequently: https://www.gnu.org/software/libc/manual/html_node/Rounding.html GMP should absolutely not play with FP rounding mode, not even for some fringe configuration. -- Torbjörn Please encrypt, key id 0xC8601622