Re: [boost] Re: status of 64bit support in integer.hpp?

From: Beman Dawes (bdawes_at_[hidden])
Date: 2002-12-20 13:45:34

At 03:35 AM 12/20/2002, Daryle Walker wrote:
 >On Wednesday, December 18, 2002, at 9:16 AM, Neal D. Becker wrote:
 >
 >> What is the status of adding 64bit support to integer.hpp?  I am
 >> looking for boost::int_t<n>::least for n > 32.
 >
 >Nothing is happening right now.  I'm sorry if I didn't make this clear
 >before: I'm _not_ doing this for you; you have to make the updated
 >header and documentation yourself and show it to us for review.  And
 >please remember the concerns I brought up on earlier threads.

Stephen Nutt started to make the changes, and then got distracted. You 
might want to ask him for his current versions.

 >1.	If 64-bits is already supported by the official C++ integral types,
 >then nothing has to be done.
 >
 >2.	Unfortunately, most compilers (AFAIK) keep int == long == 32 bits
 >instead of bumping long up to 64 bits.  Those compilers could make a
 >new type for 64 bit integrals.  But remember:
 >
 >	The existence of these extra types is NOT guaranteed.

It seems like most compiler vendors are supporting long long, so my guess 
it will eventually become standard.  Microsoft was a holdout, but with VC++ 
7.1 they've added long long.  I don't know how extensive that support is; 
some vendors long long support is more minimal than others.

--Beman