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From: rlr@stcvax.UUCP (Roger Rose)
Newsgroups: net.lang.c
Subject: Re:  C Floating point arithmetic
Message-ID: <423@stcvax.UUCP>
Date: Thu, 5-Dec-85 17:39:04 EST
Article-I.D.: stcvax.423
Posted: Thu Dec  5 17:39:04 1985
Date-Received: Sat, 7-Dec-85 17:07:37 EST
References: <1087@lll-crg.ARpA>, <4647@alice.UUCP>
Organization: Storage Technology Corp.  Louisville, CO
Lines: 17

>>	float a,b;
>>
>>	a = b + 1.0;	/* Gets done in double because 1.0 is a double.
>>			Gag me with a spoon. */
>
> Nah, gets done in single because the compiler realizes that 1.0 has
> the same representation in single and double, and therefore that
> the result of the addition will be the same.

Sorry, it get's done in double.  ALL floats are converted to double prior
to any operation.  (Refer to K&R p. 41 on implicit type conversions.)
-- 

Roger Rose
   UUCP:    {hao ihnp4 decvax}!stcvax!rlr
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