Re: [Boost-users] How to find: best integer type for processor

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Cory Nelson wrote:

Most things don't need 64-bit ints, so it would just be wasting memory to use them if 32-bit ints are as fast or faster. This is why "int" stays 32-bit on most x64 ABIs.

If you want the largest native integer, though not 100% portable to weird archs, this should work in x86/x64 and most others:

typedef boost::int_t::fast fastint_t;

I use this approach when I need the maximum "fast" integer type. If you are really paranoid about the pointer/fast integer size ratio not being 1, you can add a BOOST_STATIC_ASSERT somewhere to prevent compilation on weird archs. Francesco. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkkJ9VQACgkQFCtI0YdDCEthfgCeOtSG862w6LO2pLdIErmClZ95 VsMAoJ5OY/Fz3tgBzcjbnPdmgVl25JtW =svbV -----END PGP SIGNATURE-----