Re: asserting the equality of double values

[Kamaraju S Kusumanchi]

Stephen Compall wrote:

> On Sat, 2007-09-15 at 13:53 -0400, Kamaraju S Kusumanchi wrote:
>> 2) The above code uses DBL_MANT_DIG macro. How can I easily find out
>> where this macro is defined? Is there any book or reference which discuss
>> this kind of macros. For now I did a grep in /usr/include and found that
>> such a macro is defined in /usr/include/c++/4.2/limits file. This brings
>> up another question.
>> 
>> If you are using a macro defined in a standard c++ library header,
>> shouldn't the file be named test-round.cpp instead of test-round.c?
> 
> The GNU C Library Reference Manual is a great reference for the standard
> C library.  According to its text, the macro is defined to be included
> by float.h.  For details, see Info node (libc)Floating Point Parameters.
> 

Yes, It is indeed part of float.h. Thank you.

raju

-- 
Kamaraju S Kusumanchi
http://www.people.cornell.edu/pages/kk288/
http://malayamaarutham.blogspot.com/