digitalmars.D - How many bytes in a real ?
- Guillaume Chatelet (3/3) Aug 24 2015 On linux x86_64 : real.sizeof == 16 but it looks like only the
- rsw0x (5/8) Aug 24 2015 http://dlang.org/type.html
- Guillaume Chatelet (3/12) Aug 24 2015 Yep I found this, I'd like to know this information at compile
- Guillaume Chatelet (5/18) Aug 24 2015 I actually found another way(1) but if someone knows how to get
- Dmitry Olshansky (4/20) Aug 24 2015 real.sizeof ?
- Dmitry Olshansky (4/24) Aug 24 2015 NVM
- rsw0x (5/18) Aug 24 2015 Oh, my apologies. I've looked around and I can't seem to find
- Xinok (5/8) Aug 24 2015 The best I can think of is to use the mant_dig property which
- Guillaume Chatelet (4/13) Aug 25 2015 Thx for the proposal. I actually found this in std.math which
On linux x86_64 : real.sizeof == 16 but it looks like only the first the first 10 bytes are used (ie. 80bits) Is there a way to know the real size of a real ?
Aug 24 2015
On Monday, 24 August 2015 at 21:55:40 UTC, Guillaume Chatelet wrote:On linux x86_64 : real.sizeof == 16 but it looks like only the first the first 10 bytes are used (ie. 80bits) Is there a way to know the real size of a real ?http://dlang.org/type.html largest FP size implemented in hardwareImplementation Note: 80 bits for x86 CPUs or double size, whichever is larger
Aug 24 2015
On Monday, 24 August 2015 at 21:58:48 UTC, rsw0x wrote:On Monday, 24 August 2015 at 21:55:40 UTC, Guillaume Chatelet wrote:Yep I found this, I'd like to know this information at compile time.On linux x86_64 : real.sizeof == 16 but it looks like only the first the first 10 bytes are used (ie. 80bits) Is there a way to know the real size of a real ?http://dlang.org/type.html largest FP size implemented in hardwareImplementation Note: 80 bits for x86 CPUs or double size, whichever is larger
Aug 24 2015
On Monday, 24 August 2015 at 22:08:03 UTC, Guillaume Chatelet wrote:On Monday, 24 August 2015 at 21:58:48 UTC, rsw0x wrote:I actually found another way(1) but if someone knows how to get this information at compile time I'm still interested. Thx ! 1. https://github.com/D-Programming-Language/dmd/pull/4952On Monday, 24 August 2015 at 21:55:40 UTC, Guillaume Chatelet wrote:Yep I found this, I'd like to know this information at compile time.On linux x86_64 : real.sizeof == 16 but it looks like only the first the first 10 bytes are used (ie. 80bits) Is there a way to know the real size of a real ?http://dlang.org/type.html largest FP size implemented in hardwareImplementation Note: 80 bits for x86 CPUs or double size, whichever is larger
Aug 24 2015
On 25-Aug-2015 01:29, Guillaume Chatelet wrote:On Monday, 24 August 2015 at 22:08:03 UTC, Guillaume Chatelet wrote:real.sizeof ? -- Dmitry OlshanskyOn Monday, 24 August 2015 at 21:58:48 UTC, rsw0x wrote:I actually found another way(1) but if someone knows how to get this information at compile time I'm still interested. Thx ! 1. https://github.com/D-Programming-Language/dmd/pull/4952On Monday, 24 August 2015 at 21:55:40 UTC, Guillaume Chatelet wrote:Yep I found this, I'd like to know this information at compile time.On linux x86_64 : real.sizeof == 16 but it looks like only the first the first 10 bytes are used (ie. 80bits) Is there a way to know the real size of a real ?http://dlang.org/type.html largest FP size implemented in hardwareImplementation Note: 80 bits for x86 CPUs or double size, whichever is larger
Aug 24 2015
Dmitry Olshansky <dmitry.olsh gmail.com> On 25-Aug-2015 08:28, Dmitry Olshansky wrote:On 25-Aug-2015 01:29, Guillaume Chatelet wrote:NVM -- Dmitry OlshanskyOn Monday, 24 August 2015 at 22:08:03 UTC, Guillaume Chatelet wrote:real.sizeof ?On Monday, 24 August 2015 at 21:58:48 UTC, rsw0x wrote:I actually found another way(1) but if someone knows how to get this information at compile time I'm still interested. Thx ! 1. https://github.com/D-Programming-Language/dmd/pull/4952On Monday, 24 August 2015 at 21:55:40 UTC, Guillaume Chatelet wrote:Yep I found this, I'd like to know this information at compile time.On linux x86_64 : real.sizeof == 16 but it looks like only the first the first 10 bytes are used (ie. 80bits) Is there a way to know the real size of a real ?http://dlang.org/type.html largest FP size implemented in hardwareImplementation Note: 80 bits for x86 CPUs or double size, whichever is larger
Aug 24 2015
On Monday, 24 August 2015 at 22:08:03 UTC, Guillaume Chatelet wrote:On Monday, 24 August 2015 at 21:58:48 UTC, rsw0x wrote:Oh, my apologies. I've looked around and I can't seem to find anything. Sorry for the noise.On Monday, 24 August 2015 at 21:55:40 UTC, Guillaume Chatelet wrote:Yep I found this, I'd like to know this information at compile time.On linux x86_64 : real.sizeof == 16 but it looks like only the first the first 10 bytes are used (ie. 80bits) Is there a way to know the real size of a real ?http://dlang.org/type.html largest FP size implemented in hardwareImplementation Note: 80 bits for x86 CPUs or double size, whichever is larger
Aug 24 2015
On Monday, 24 August 2015 at 21:55:40 UTC, Guillaume Chatelet wrote:On linux x86_64 : real.sizeof == 16 but it looks like only the first the first 10 bytes are used (ie. 80bits) Is there a way to know the real size of a real ?The best I can think of is to use the mant_dig property which returns the number of bits in the mantissa. http://dpaste.dzfl.pl/9889b3d0bd5b
Aug 24 2015
On Tuesday, 25 August 2015 at 00:13:28 UTC, Xinok wrote:On Monday, 24 August 2015 at 21:55:40 UTC, Guillaume Chatelet wrote:Thx for the proposal. I actually found this in std.math which confirms this is indeed a possibility. https://github.com/D-Programming-Language/phobos/blob/6681862b4e3a77004e8d6ec1f62cf6587e20f6d4/std/math.d#L228On linux x86_64 : real.sizeof == 16 but it looks like only the first the first 10 bytes are used (ie. 80bits) Is there a way to know the real size of a real ?The best I can think of is to use the mant_dig property which returns the number of bits in the mantissa. http://dpaste.dzfl.pl/9889b3d0bd5b
Aug 25 2015