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c++ - float.h p.p values

reply comeau panix.com (Greg Comeau) writes:
Your float.h uses many floating point values with a p notation.
Would you happen to have those values handy in non-p form?
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Jan 12 2002
next sibling parent reply "Walter" <walter digitalmars.com> writes:
They're all the same values everyone else uses <g>. Alternatively, you can
just printf() them out. -Walter

"Greg Comeau" <comeau panix.com> wrote in message
news:a1pkkb$832$1 panix3.panix.com...

 Your float.h uses many floating point values with a p notation.
 Would you happen to have those values handy in non-p form?
 --
 Greg Comeau   What's next: additional Windows backends and 'export'!
 Comeau C/C++ ONLINE ==>     http://www.comeaucomputing.com/tryitout
 World Class Compilers:  Breathtaking C++, Amazing C99, Fabulous C90.
 Comeau C/C++ with Dinkumware's Libraries... Have you tried it?
Jan 12 2002
parent reply comeau panix.com (Greg Comeau) writes:
In article <a1q1pf$1arq$3 digitaldaemon.com>,
Walter <walter digitalmars.com> wrote:

They're all the same values everyone else uses <g>. Alternatively, you can
just printf() them out. -Walter



I did, but just wanted to check.  Also, for some reason, I can't
get the values for the long doubles.  What would the printf be
for LDBL_EPSILON, LDBL_MAX, and LDBL_MIN?  %Lf didn't do anything
that seems reasonable.
-- 
Greg Comeau   What's next: additional Windows backends and 'export'!
Comeau C/C++ ONLINE ==>     http://www.comeaucomputing.com/tryitout
World Class Compilers:  Breathtaking C++, Amazing C99, Fabulous C90.
Comeau C/C++ with Dinkumware's Libraries... Have you tried it?
Jan 12 2002
next sibling parent comeau panix.com (Greg Comeau) writes:
In article <a1q2v1$ph1$1 panix3.panix.com>,
Greg Comeau <comeau comeaucomputing.com> wrote:

In article <a1q1pf$1arq$3 digitaldaemon.com>,
Walter <walter digitalmars.com> wrote:

They're all the same values everyone else uses <g>. Alternatively, you can
just printf() them out. -Walter



I did, but just wanted to check.  Also, for some reason, I can't
get the values for the long doubles.  What would the printf be
for LDBL_EPSILON, LDBL_MAX, and LDBL_MIN?  %Lf didn't do anything
that seems reasonable.



Hmm, playing some more, I *think* the problem was that
#include <stdio.h> vs not having it produces different results.
-- 
Greg Comeau   What's next: additional Windows backends and 'export'!
Comeau C/C++ ONLINE ==>     http://www.comeaucomputing.com/tryitout
World Class Compilers:  Breathtaking C++, Amazing C99, Fabulous C90.
Comeau C/C++ with Dinkumware's Libraries... Have you tried it?
Jan 12 2002
prev sibling parent "Walter" <walter digitalmars.com> writes:
%lg should do the trick.

"Greg Comeau" <comeau panix.com> wrote in message
news:a1q2v1$ph1$1 panix3.panix.com...

 In article <a1q1pf$1arq$3 digitaldaemon.com>,
 Walter <walter digitalmars.com> wrote:

They're all the same values everyone else uses <g>. Alternatively, you







just printf() them out. -Walter



 I did, but just wanted to check.  Also, for some reason, I can't
 get the values for the long doubles.  What would the printf be
 for LDBL_EPSILON, LDBL_MAX, and LDBL_MIN?  %Lf didn't do anything
 that seems reasonable.
 --
 Greg Comeau   What's next: additional Windows backends and 'export'!
 Comeau C/C++ ONLINE ==>     http://www.comeaucomputing.com/tryitout
 World Class Compilers:  Breathtaking C++, Amazing C99, Fabulous C90.
 Comeau C/C++ with Dinkumware's Libraries... Have you tried it?
Jan 12 2002
prev sibling parent "Walter" <walter digitalmars.com> writes:
"Greg Comeau" <comeau panix.com> wrote in message
news:a1pkkb$832$1 panix3.panix.com...

 Your float.h uses many floating point values with a p notation.
 Would you happen to have those values handy in non-p form?



I use the p values to avoid any problems with roundoff errors in the
string->float conversion.
Jan 12 2002