https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106165
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to xeioex from comment #3) > Is there a portable (across platforms and compilers) to ensure that double > values are always 64 bits? It is still 64bit storage on i686, just uses the excessive precission while doing calculations. You should read "What Every Computer Scientist Should Know About Floating-Point Arithmetic": https://www.itu.dk/~sestoft/bachelor/IEEE754_article.pdf about this and all.
