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Programming > C > Number of bits ...
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Number of bits in C99 float types?

by Dom Fulton <wes104@[EMAIL PROTECTED] > Mar 17, 2008 at 08:13 PM

Has anyone got a mechanism for finding the number of bits in floats,
doubles, and long doubles? I need this to communicate with some
hardware.

I guess I could try to deduce this from float.h, but that looks
difficult.

I don't mind something which is system-specific; the older gccs had
various defines in cpu_limits.h and related files, but I can't find
anything in later gccs.

Thanks -

Dom




 28 Posts in Topic:
Number of bits in C99 float types?
 Dom Fulton <wes104@[EM  2008-03-17 20:13:21 
Re: Number of bits in C99 float types?
 Harald van =?UTF-8?b?RMSz  2008-03-17 21:16:44 
Re: Number of bits in C99 float types?
 Dom Fulton <wes104@[EM  2008-03-17 20:49:51 
Re: Number of bits in C99 float types?
 jacob navia <jacob@[EM  2008-03-17 21:56:45 
Re: Number of bits in C99 float types?
 Eric Sosman <Eric.Sosm  2008-03-17 17:12:21 
Re: Number of bits in C99 float types?
 jacob navia <jacob@[EM  2008-03-17 22:29:08 
Re: Number of bits in C99 float types?
 santosh <santosh.k83@[  2008-03-18 03:19:38 
Re: Number of bits in C99 float types?
 Eric Sosman <Eric.Sosm  2008-03-17 18:08:16 
Re: Number of bits in C99 float types?
 Dom Fulton <wes104@[EM  2008-03-17 23:13:49 
Re: Number of bits in C99 float types?
 jacob navia <jacob@[EM  2008-03-18 00:20:15 
Re: Number of bits in C99 float types?
 santosh <santosh.k83@[  2008-03-18 04:58:16 
Re: Number of bits in C99 float types?
 jacob navia <jacob@[EM  2008-03-18 00:32:24 
Re: Number of bits in C99 float types?
 Keith Thompson <kst-u@  2008-03-18 09:48:42 
Re: Number of bits in C99 float types?
 ymuntyan@[EMAIL PROTECTED  2008-03-17 18:16:56 
Re: Number of bits in C99 float types?
 user923005 <dcorbit@[E  2008-03-17 18:41:40 
Re: Number of bits in C99 float types?
 ymuntyan@[EMAIL PROTECTED  2008-03-17 20:59:40 
Re: Number of bits in C99 float types?
 "christian.bau"  2008-03-18 11:06:52 
Re: Number of bits in C99 float types?
 Ian Collins <ian-news@  2008-03-18 09:17:21 
Re: Number of bits in C99 float types?
 Harald van =?UTF-8?b?RMSz  2008-03-17 22:06:40 
Re: Number of bits in C99 float types?
 Harald van =?UTF-8?b?RMSz  2008-03-17 22:09:38 
Re: Number of bits in C99 float types?
 Keith Thompson <kst-u@  2008-03-18 09:40:17 
Re: Number of bits in C99 float types?
 Dom Fulton <wes104@[EM  2008-03-18 10:50:49 
Re: Number of bits in C99 float types?
 santosh <santosh.k83@[  2008-03-18 18:06:22 
Re: Number of bits in C99 float types?
 Eric Sosman <esosman@[  2008-03-18 09:33:49 
Re: Number of bits in C99 float types?
 Ben Bacarisse <ben.use  2008-03-18 11:48:16 
Re: Number of bits in C99 float types?
 Harald van =?UTF-8?b?RMSz  2008-03-18 18:33:38 
Re: Number of bits in C99 float types?
 santosh <santosh.k83@[  2008-03-19 00:36:37 
Re: Number of bits in C99 float types?
 Keith Thompson <kst-u@  2008-03-18 23:34:32 

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tan12V112 Fri Oct 10 22:10:14 CDT 2008.