RE: [boost] int64_t with MSVC 7.1 & 'strict' /Za option

From: Paul A. Bristow (boost_at_[hidden])
Date: 2003-08-29 12:28:40

Do I understand correctly that with MSVC 7.1 option /Za

#define BOOST_HAS_MS_INT64

merely makes int64_t available as the ONLY language extension?

(I am only trying to uniformly compile MY modules (which all use date-time)
without language extensions and warnings at level 4).

Paul

Paul A Bristow, Prizet Farmhouse, Kendal, Cumbria, LA8 8AB  UK
[phone]   Mobile [phone]
mailto:pbristow_at_[hidden]

| -----Original Message-----
| From: boost-bounces_at_[hidden]
| [mailto:boost-bounces_at_[hidden]]On Behalf Of Jeff Garland
| Sent: Friday, August 29, 2003 1:33 PM
| To: Boost mailing list
| Subject: Re: [boost] int64_t with MSVC 7.1 & 'strict' /Za option
|
|
| On Thu, 28 Aug 2003 19:35:57 +0100, Paul A. Bristow wrote
| > Trying to use boost/date-time in MSVC 7.1 in 'strict' mode option
| > /Za 'disable language extensions' it seems that
| >
| > boost::int64_t isn't available.
| >
| > After a journey through the labryinthine config modules, I have got
| compiling
| > with
| >
| > #define BOOST_HAS_MS_INT64 // required if language extensions disabled /Za.
| >
| > as the first statement.
| >
| > but I am unclear if this is a deficiency in either boost/cstdint and/or
| > date-time/compiler_config.hpp
| >
| > or in my understanding of the MS option
| >
| > but it might be worth documenting somewhere, perhaps as a comment in
| > cstdint.hpp?
|
| I'm not an expert on the VC options, but it seems that if the user is flagging
| us that we shouldn't use any language extensions then we should honor that.
| So I would accept that it is a bug in date-time that it doesn't offer an
| option to configure without int64_t.  One other user has brought this issue
| up, but it hasn't been high enough on my priority list as the library runs
| well on a large set of platforms and removal of int64_t from the core will
| surely slow things down (especially with 64 bit processors getting cheap :-)
| So I recommend the following in steps:
|
| 1) Will define BOOST_HAS_MS_INT64 in date-time/compiler_config for now
| 2) Will document that this extension is used in the date-time docs
| 3) Will in the future provide options to use date-time without int64_t
|
| And I agree that a note in cstdint.hpp might be nice too.
|
| Jeff
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