From: Tom Weis <tom_weis@mathworks.com>
Subject: Re: precise floats
Date: 1998/08/07
Date: 1998-08-07T00:00:00+00:00 [thread overview]
Message-ID: <35CB7F43.4069@mathworks.com> (raw)
In-Reply-To: dewar.902412781@merv
Frank said
<<What about support of the 3 floating point types of the x86
architecture,
32-bit IEEE (7 digits), 64-bit IEEE (16 digits) and the internal FPU
format
(19 digits).
Most compilers do *not* support the last.>>
Robert said
<<I am very surprised if that last statement is true. Most certainly
GNAT
supports the extended precision type on the x86 (it is called
Long_Long_Float).
Note that any compiler not supporting this type is not a conforming
implementation. B.2(10) is a normative requirement:
10 Floating point types corresponding to each floating point format
fully supported by the hardware.>>
Does GNAT support the IEEE representations of infinities and
Not-A-Number (nan) specified in "IEEE Standard for Binary Floating-Point
Arithmetic ANSI/IEEE Std 754-1985" or "IEEE Standard for
Radix-Independent Floating-Point Arithmetic ANSI/IEEE Std 854-1987"?
next prev parent reply other threads:[~1998-08-07 0:00 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-08-04 0:00 precise floats Bob Fletcher
1998-08-04 0:00 ` Christopher Green
1998-08-04 0:00 ` Corey Ashford
1998-08-04 0:00 ` Corey Ashford
1998-08-05 0:00 ` Frank Klemm
1998-08-06 0:00 ` Robert Dewar
1998-08-06 0:00 ` dennison
1998-08-07 0:00 ` Robert Dewar
1998-08-07 0:00 ` paul.english
1998-08-08 0:00 ` Robert Dewar
1998-08-12 0:00 ` Kevin Radke
1998-08-25 0:00 ` Gene Ouye
1998-08-10 0:00 ` dennison
1998-08-07 0:00 ` Tom Weis [this message]
1998-08-07 0:00 ` Robert Dewar
1998-08-04 0:00 ` David C. Hoos, Sr.
1998-08-05 0:00 ` Bob Fletcher
1998-08-05 0:00 ` Matthew Heaney
1998-08-09 0:00 ` Bob Fletcher
-- strict thread matches above, loose matches on Subject: below --
1998-08-06 0:00 Robert Dewar
1998-08-06 0:00 ` Samuel Mize
1998-08-07 0:00 ` Matthew Heaney
1998-08-07 0:00 ` Robert Dewar
1998-08-06 0:00 ` Corey Ashford
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