From:	Shaun Jackman <sjackman AT rogers DOT wave DOT ca>
Newsgroups:	comp.os.msdos.djgpp
Subject:	strtod() crashes on the call strtod("$.", &endp);
Date:	Sun, 03 May 1998 02:42:25 -0700
Organization:	ARC Technologies
Lines:	39
Message-ID:	<354C3C00.FD4900DB@rogers.wave.ca>
NNTP-Posting-Host:	pc-15794.bc.rogers.wave.ca
Mime-Version:	1.0
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

I have a program that is crashing within strtod(). I found it unusual
that it would crash during a library function call. Maybe you somebody
out there can shed some light on this.

I'm writing a Forth compiler, and was testing it on this script:
1 if
  '1 == 1' $.
  'Cool'   $.
then

0 if
  'Uh oh' $.
then


Unfortunately, it crashes.
I ran gdb on it, and after the crash got a stack frame back-trace.
The result was:

Program received signal SIGFPE, Arithmetic exception.
0x25df7 in strtod ()
(gdb) bt
#0  0x25df7 in strtod ()
#1  0x18f9 in is_literal (lexema=0x7f111 "$.") at forth.c:62
#2  0x2285 in forth (
    tp=0x7f114 "   'Cool'   $.  then    0 if    'Uh oh' $.  then     ") 
    at forth.c:433
#3  0x1738 in main ()
#4  0x253e6 in __crt1_startup ()
(gdb)

Which means it crashed on the call strtod("$.", &endp);
I have no idea why.

I am using gcc version 2.7.2.1

Thanks for your help,
Please respond by e-mail as well if possible,
Shaun Jackman

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