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| From: | Eric Sosman <Eric DOT Sosman AT sun DOT com> |
| Newsgroups: | comp.lang.c,comp.os.msdos.djgpp |
| Subject: | Re: Fibonacci number |
| Date: | Mon, 23 Feb 2004 11:01:15 -0500 |
| Organization: | Sun Microsystems |
| Lines: | 16 |
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| To: | djgpp AT delorie DOT com |
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CBFalconer wrote:
> [...]
> BTW the following shows up a glitch in DJGPP 2.03 system. Calling
> the program with an argument of -1 returns the overflow condition,
> because strtoul returns ULONG_MAX rather than 0. Cross-posted to
> comp.os.msdos.djgpp for this.
> [...]
> n = strtoul(argv[1], NULL, 10);
If you mean that strtoul("-1", NULL, 10) returns ULONG_MAX,
then there's no bug: that's what it is supposed to do. See
the Standard, section 7.20.1.4 paragraph 3, and note the text
"optionally preceded by a plus or minus sign."
--
Eric DOT Sosman AT sun DOT com
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