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| From | August Karlstrom <fusionfile@gmail.com> |
|---|---|
| Newsgroups | comp.lang.c |
| Subject | Re: puzzling error |
| Date | 2011-05-05 15:58 +0200 |
| Organization | A noiseless patient Spider |
| Message-ID | <ipuaf1$6jk$1@dont-email.me> (permalink) |
| References | <4dc29b93$0$5067$bbae4d71@news.suddenlink.net> |
On 2011-05-05 14:44, Bill Cunningham wrote:
> I am not quite sure what is going on here but this is my tested and
> compiled code. As written below at compile time I get this warning.
>
> p.c: In function `main':
> p.c:9: warning: assignment makes pointer from integer without a cast
>
> I don't see the int in this code.
>
> #include<stdio.h>
> #include<string.h>
>
> int main(void)
> {
> char p[] = "hello to all";
> char *a;
> printf("%s\n", p);
> printf("%s\n", a = strfry(p)); //error on this line.
> return 0;
> }
>
> strfry() is a GNU extension. It takes a char* as is sole argument and
> returns a char*. Now if I change that char p[] to a char *p I get a
> segmentation fault. What's up with that?
The clang compiler will give you a bit more information (even without
warnings enabled):
$ clang test.c
test.c:9:24: warning: implicit declaration of function 'strfry' is
invalid in
C99 [-Wimplicit-function-declaration]
printf("%s\n", a = strfry(p)); //error on this line.
^
test.c:9:22: warning: incompatible integer to pointer conversion
assigning to
'char *' from 'int'
printf("%s\n", a = strfry(p)); //error on this line.
^ ~~~~~~~~~
2 warnings generated.
/August
--
The competent programmer is fully aware of the limited size of his own
skull. He therefore approaches his task with full humility, and avoids
clever tricks like the plague. --Edsger Dijkstra
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puzzling error "Bill Cunningham" <nospam@nspam.invalid> - 2011-05-05 08:44 -0400
Re: puzzling error Ben Bacarisse <ben.usenet@bsb.me.uk> - 2011-05-05 13:56 +0100
Re: puzzling error "Bill Cunningham" <nospam@nspam.invalid> - 2011-05-05 12:11 -0400
Re: puzzling error Keith Thompson <kst-u@mib.org> - 2011-05-05 09:26 -0700
Re: puzzling error "Bill Cunningham" <nospam@nspam.invalid> - 2011-05-05 13:26 -0400
Re: puzzling error Chad <cdalten@gmail.com> - 2011-05-05 11:34 -0700
Re: puzzling error "Bill Cunningham" <nospam@nspam.invalid> - 2011-05-05 14:52 -0400
Re: puzzling error Paul N <gw7rib@aol.com> - 2011-05-05 13:39 -0700
Re: puzzling error Keith Thompson <kst-u@mib.org> - 2011-05-05 13:54 -0700
Re: puzzling error Seebs <usenet-nospam@seebs.net> - 2011-05-05 20:38 +0000
Re: puzzling error Keith Thompson <kst-u@mib.org> - 2011-05-05 14:11 -0700
Re: puzzling error Angel <angel+news@spamcop.net> - 2011-05-05 23:40 +0000
Re: puzzling error Kenneth Brody <kenbrody@spamcop.net> - 2011-05-05 13:55 -0400
Re: puzzling error "Bill Cunningham" <nospam@nspam.invalid> - 2011-05-05 14:04 -0400
Re: puzzling error Kenneth Brody <kenbrody@spamcop.net> - 2011-05-09 13:26 -0400
Re: puzzling error Keith Thompson <kst-u@mib.org> - 2011-05-05 11:31 -0700
Re: puzzling error Keith Thompson <kst-u@mib.org> - 2011-05-05 09:06 -0700
Re: puzzling error "Bill Cunningham" <nospam@nspam.invalid> - 2011-05-05 12:30 -0400
Re: puzzling error Kenneth Brody <kenbrody@spamcop.net> - 2011-05-05 13:40 -0400
Re: puzzling error Ben Bacarisse <ben.usenet@bsb.me.uk> - 2011-05-05 21:32 +0100
Re: puzzling error "Bill Cunningham" <nospam@nspam.invalid> - 2011-05-05 13:34 -0400
Re: puzzling error Ben Bacarisse <ben.usenet@bsb.me.uk> - 2011-05-05 21:38 +0100
Re: puzzling error "Bill Cunningham" <nospam@nspam.invalid> - 2011-05-06 02:39 -0400
Re: puzzling error Keith Thompson <kst-u@mib.org> - 2011-05-05 23:40 -0700
Re: puzzling error Ike Naar <ike@sverige.freeshell.org> - 2011-05-05 13:01 +0000
Re: puzzling error "Bill Cunningham" <nospam@nspam.invalid> - 2011-05-05 12:05 -0400
Re: puzzling error Angel <angel+news@spamcop.net> - 2011-05-05 16:23 +0000
Re: puzzling error Keith Thompson <kst-u@mib.org> - 2011-05-05 09:08 -0700
Re: puzzling error Marc Boyer <Marc.Boyer@cert.onera.fr.invalid> - 2011-05-05 13:02 +0000
Re: puzzling error "Bill Cunningham" <nospam@nspam.invalid> - 2011-05-05 12:34 -0400
Re: puzzling error "Bill Cunningham" <nospam@nspam.invalid> - 2011-05-05 12:35 -0400
Re: puzzling error "Bill Cunningham" <nospam@nspam.invalid> - 2011-05-05 12:40 -0400
Re: puzzling error Kenneth Brody <kenbrody@spamcop.net> - 2011-05-05 14:08 -0400
Re: puzzling error Keith Thompson <kst-u@mib.org> - 2011-05-05 11:35 -0700
Re: puzzling error Angel <angel+news@spamcop.net> - 2011-05-05 18:54 +0000
OT: man strfry (was Re: puzzling error) Kenneth Brody <kenbrody@spamcop.net> - 2011-05-09 13:33 -0400
Re: man strfry (was Re: puzzling error) "Bill Cunningham" <nospam@nspam.invalid> - 2011-05-11 14:30 -0400
Re: puzzling error "Bill Cunningham" <nospam@nspam.invalid> - 2011-05-05 13:13 -0400
Re: puzzling error Kenneth Brody <kenbrody@spamcop.net> - 2011-05-05 14:13 -0400
Re: puzzling error "Bill Cunningham" <nospam@nspam.invalid> - 2011-05-05 14:27 -0400
Re: puzzling error "Joachim Schmitz" <nospam.jojo@schmitz-digital.de> - 2011-05-07 09:59 +0200
Re: puzzling error Keith Thompson <kst-u@mib.org> - 2011-05-07 11:20 -0700
Re: puzzling error August Karlstrom <fusionfile@gmail.com> - 2011-05-05 15:58 +0200
Re: puzzling error "osmium" <r124c4u102@comcast.net> - 2011-05-05 10:38 -0500
Re: puzzling error "Bill Cunningham" <nospam@nspam.invalid> - 2011-05-05 12:03 -0400
Re: puzzling error Joe Wright <joewwright@comcast.net> - 2011-05-05 13:19 -0400
Re: puzzling error Kenneth Brody <kenbrody@spamcop.net> - 2011-05-05 13:34 -0400
Re: puzzling error "osmium" <r124c4u102@comcast.net> - 2011-05-05 12:54 -0500
Re: puzzling error "Bill Cunningham" <nospam@nspam.invalid> - 2011-05-05 14:08 -0400
Re: puzzling error "Bill Cunningham" <nospam@nspam.invalid> - 2011-05-05 12:06 -0400
Re: puzzling error Keith Thompson <kst-u@mib.org> - 2011-05-05 09:11 -0700
Re: puzzling error "Bill Cunningham" <nospam@nspam.invalid> - 2011-05-05 12:36 -0400
Re: puzzling error Kenneth Brody <kenbrody@spamcop.net> - 2011-05-05 13:33 -0400
Re: puzzling error Angel <angel+news@spamcop.net> - 2011-05-05 16:01 +0000
Re: puzzling error "Bill Cunningham" <nospam@nspam.invalid> - 2011-05-05 12:09 -0400
Re: puzzling error Angel <angel+news@spamcop.net> - 2011-05-05 16:19 +0000
Re: puzzling error "Bill Cunningham" <nospam@nspam.invalid> - 2011-05-05 12:28 -0400
Re: puzzling error "Bill Cunningham" <nospam@nspam.invalid> - 2011-05-05 12:42 -0400
Re: puzzling error "Bill Cunningham" <nospam@nspam.invalid> - 2011-05-05 13:16 -0400
Re: puzzling error Kenneth Brody <kenbrody@spamcop.net> - 2011-05-05 13:41 -0400
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