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From: gwyn@brl-smoke.ARPA (Doug Gwyn )
Newsgroups: comp.bugs.sys5
Subject: SVR2 strtod() bug
Message-ID: <6298@brl-smoke.ARPA>
Date: Wed, 19-Aug-87 22:35:29 EDT
Article-I.D.: brl-smok.6298
Posted: Wed Aug 19 22:35:29 1987
Date-Received: Sat, 22-Aug-87 06:15:38 EDT
Organization: Ballistic Research Lab (BRL), APG, MD.
Lines: 20
Keywords: libc strtod bug

Jeff Hanes found a bug in the SVR2.0 libc/port/gen/atof.c; the
endptr was not being updated correctly by strtod in some cases.
This bug can be fixed as follows:

/*	@(#)atof.c	2.7	*/
...
#ifdef pdp11
...
		while (isdigit(c = *p) || c == '.' && !decpt++) {	/* DAG */
			p++;	/* DAG -- bug fix (increment done later) */
...
#else
...
		while (isdigit(c = *p) || c == '.' && !decpt++) {	/* DAG */
			p++;	/* DAG -- bug fix (increment done later) */
...
#endif
...
		switch (*++p) { /* process sign */	/* DAG */
...