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Michiel.Salters@tomtom.co
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 Posted: Mon Jan 23, 2006 11:45 pm Post subject: Re: C++0x and file I/O |
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Earl Purple wrote:
| Quote: | Lasse Kärkkäinen / Tronic wrote:
Hi,
While people are getting all excited of new features that will extend the
language, I'm more worried about basic stuff that is important in a very
large number of applications: file I/O.
Best option is to define your own traits class (which you can use only
for big files) with these definitions:
#if defined _WIN32
typedef __int64 off_type;
#elif defined _WIN64
typedef __int64 off_type;
#else
typedef long long off_type;
#endif
or whatever fits the platforms you are writing for.
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That won't help if the OS or the C++ library vendor keep the file API's
at 32 bits.
And if both provide proper 64-bits APIs, the TS doesn't need your
classes.
HTH,
Michiel Salters
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Earl Purple
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| Posted: Tue Jan 24, 2006 3:56 pm Post subject: Re: C++0x and file I/O |
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[email]Michiel.Salters (AT) tomtom (DOT) com[/email] wrote:
| Quote: | Earl Purple wrote:
Lasse Kärkkäinen / Tronic wrote:
Hi,
While people are getting all excited of new features that will extend the
language, I'm more worried about basic stuff that is important in a very
large number of applications: file I/O.
Best option is to define your own traits class (which you can use only
for big files) with these definitions:
#if defined _WIN32
typedef __int64 off_type;
#elif defined _WIN64
typedef __int64 off_type;
#else
typedef long long off_type;
#endif
or whatever fits the platforms you are writing for.
That won't help if the OS or the C++ library vendor keep the file API's
at 32 bits.
And if both provide proper 64-bits APIs, the TS doesn't need your
classes.
|
It has helped me with files that are between 2 GB and 4GB. You'd need
an O/S change to allow files of more than 4GB.
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[ comp.std.c++ is moderated. To submit articles, try just posting with ]
[ your news-reader. If that fails, use mailto:std-c++@ncar.ucar.edu ]
[ --- Please see the FAQ before posting. --- ]
[ FAQ: http://www.jamesd.demon.co.uk/csc/faq.html ]
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