Path: utzoo!attcan!uunet!auspex!guy
From: guy@auspex.UUCP (Guy Harris)
Newsgroups: comp.lang.c
Subject: Re: #include <is.h>
Message-ID: <778@auspex.UUCP>
Date: 22 Dec 88 07:26:38 GMT
References: <354@greens.UUCP> <1920@paris.ics.uci.edu> <11252@haddock.ima.isc.com>
Reply-To: guy@auspex.UUCP (Guy Harris)
Organization: Auspex Systems, Santa Clara
Lines: 13

>Btw, the posted version of the function accepts "3.14xyz" as valid (as does
>atof() itself).  I would think that the problem as stated should require that
>string to be rejected.

Also note that "strtod" can be used in code that would reject this
string.  It stops scanning at the first unrecognized character; for
instance, if the floating-point number is expected to be terminated by a
white-space character or by a '\0' (i.e., it's expected to be a token in
a string, with tokens delimited by white space), the caller of "strtod"
would pass it a non-NULL second argument that pointed to a "char *"
variable initialized to point to the string; if, after calling "strtod",
the "char *" variable still pointed to the string, or pointed to a
character that wasn't white space or '\0', the string should be rejected.