四倍精度 [英] quadruple precision
问题描述
嗨
我不知道这是不是正确的新闻组但是它来了
我需要四倍的精度下一个项目并且正在考虑是否将一个
四倍类型添加到Visual Studio 2005 C ++中？
感谢Torben Laursen
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Torben Laursen写道：嗨
我不知道这是不是正确的新闻组，但它来了
我的下一个项目需要四倍的精度，并且正在考虑是否在Visual Studio 2005中添加了四重类型C ++？
编号VC ++ 2005提供的浮点类型是山姆e作为VC ++
2003 - 浮动和双倍。解析器接受'long double''，但实现时它与double的类型相同。
没有版本VC ++有曾经支持双倍或任何形式的128位
浮点数（包括64位操作系统的VC，AFIAK）。
-cd
" Torben Laursen"写道：
嗨
我不知道这是不是正确的新闻组，但在这里它来了
我需要四倍在我的下一个项目中是否精确，并且正在考虑是否在Visual Studio 2005 C ++中添加了四重类型？
你试过long double吗？ ？
感谢Torben Laursen
---
发送的邮件经过无病毒认证。
由AVG反查病毒系统（ http://www.grisoft.com）。
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您好JimmyC
long double不会给我更多，然后加倍。我需要大约25位数。
Torben
" JimmyC" <籍**** @ discussions.microsoft.com>在消息中写道
新闻：C1 ********************************** @ microsof t.com ...
Torben Laursen写道：
嗨
我不知道这是不是正确的新闻组，但在这里它来了
我需要四倍我的下一个项目的精度是否正在考虑是否在Visual Studio 2005 C ++中添加了四重类型？
你试过long double吗？ ？
感谢Torben Laursen
---
外发邮件已通过无病毒认证。
由AVG反病毒系统（ http://www.grisoft.com）检查。
版本：6.0.786 /病毒库：532 - 发布日期：29/10/2004
---
外发邮件已通过无病毒验证。
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Hi
I don''t know if this is the right newsgroup but here it comes
I need quadruple precision in my next project and was thinking if a
quadruple type was added to Visual studio 2005 C++?
Thanks Torben Laursen
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Torben Laursen wrote:Hi
I don''t know if this is the right newsgroup but here it comes
I need quadruple precision in my next project and was thinking if a
quadruple type was added to Visual studio 2005 C++?
No. The floating point types provided by VC++ 2005 are the same as VC++
2003 - float and double. ''long double'' is accepted by the parser, but it''s
the same type as double in the implementation.
No version VC++ has ever supported "double double" or any form of 128bit
floating point (including VC for 64bit OS''s, AFIAK).
-cd
"Torben Laursen" wrote:
Hi
I don''t know if this is the right newsgroup but here it comes
I need quadruple precision in my next project and was thinking if a
quadruple type was added to Visual studio 2005 C++?
have you tried "long double" ?
Thanks Torben Laursen
---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.786 / Virus Database: 532 - Release Date: 29/10/2004
Hi JimmyC
Long double does not give me much more then double. I need around 25 digits.
Torben
"JimmyC" <Ji****@discussions.microsoft.com> wrote in message
news:C1**********************************@microsof t.com...
"Torben Laursen" wrote:Hi
I don''t know if this is the right newsgroup but here it comes
I need quadruple precision in my next project and was thinking if a
quadruple type was added to Visual studio 2005 C++?
have you tried "long double" ?Thanks Torben Laursen
---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.786 / Virus Database: 532 - Release Date: 29/10/2004
---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.786 / Virus Database: 532 - Release Date: 29/10/2004
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