Sponsored Content
Top Forums Programming Reason for Segmentation fault Post 302149825 by JamesGoh on Friday 7th of December 2007 09:53:07 PM
Old 12-07-2007
Porter

Before my last post, I didnt make an effort to actually test your code segment out for myself and see what was going on. so my bad on that part

However, I did run it just then and it turned out ok. I even ran the debugger and found out that the memory addressess of c and *p were idential after char *p=&c;

Heres the code I typed in (inc. line numbers)

Code:
18      char c= 'a';
19      char *ptr = &c;
20      return ptr;

Heres the gdb output at line 20

Code:
20      return ptr;

(gdb) print &c
$3 = 0xbffff6b7 "aÈöÿ¿q\203\004\b\2008\001@\024÷ÿ¿èöÿ¿Wl\003@\001"

(gdb) print ptr
$4 = 0xbffff6b7 "aÈöÿ¿q\203\004\b\2008\001@\024÷ÿ¿èöÿ¿Wl\003@\001"

So if your code suggestion works fine, then what is wrong with it ?? (Maybe something I missed ?)
 

10 More Discussions You Might Find Interesting

1. Programming

segmentation fault

hi all i'm trying to execute a c program under linux RH and it gives me segmentation fault, this program was running under unix at&t anybody kow what the problem could be? thanx in advance regards (2 Replies)
Discussion started by: omran
2 Replies

2. AIX

Segmentation fault

Hi , During execution a backup binary i get following error "Program error 11 (Segmentation fault), saving core file in '/usr/datatools" Riyaz (2 Replies)
Discussion started by: rshaikh
2 Replies

3. Linux

Segmentation fault

Hi, on a linux Red HAT(with Oracle DB 9.2.0.7) I have following error : RMAN> delete obsolete; RMAN retention policy will be applied to the command RMAN retention policy is set to redundancy 2 using channel ORA_DISK_1 Segmentation fault What does it mean ? And the solution ? Many thanks. (0 Replies)
Discussion started by: big123456
0 Replies

4. UNIX for Dummies Questions & Answers

Segmentation Fault

Hi, While comparing primary key data of two tables thr bteq script I am getting this Error. This script is a shell script. *** Error: The following error was encountered on the output file. Script.sh: 3043492 Segmentation fault(coredump) Please let me know how to get through it. ... (5 Replies)
Discussion started by: monika
5 Replies

5. Programming

segmentation fault

If I do this. Assume struct life { char *nolife; } struct life **life; // malloc initialization & everything if(life->nolife == 0) Would I get error at life->nolife if it is equal to 0. wrong accession? (3 Replies)
Discussion started by: joey
3 Replies

6. Programming

segmentation fault

What is segmentation fault(core dumped) (1 Reply)
Discussion started by: gokult
1 Replies

7. Programming

Using gdb, ignore beginning segmentation fault until reproduce environment segmentation fault

I use a binary name (ie polo) it gets some parameter , so for debugging normally i do this : i wrote script for watchdog my app (polo) and check every second if it's not running then start it , the problem is , if my app , remain in state of segmentation fault for a while (ie 15 ... (6 Replies)
Discussion started by: pooyair
6 Replies

8. Homework & Coursework Questions

Segmentation Fault

this is a network programming code to run a rock paper scissors in a client and server. I completed it and it was working without any error. After I added the findWinner function to the server code it starts giving me segmentation fault. -the segmentation fault is fixed Current problem -Also... (3 Replies)
Discussion started by: femchi
3 Replies

9. Programming

Segmentation fault

I keep getting this fault on a lot of the codes I write, I'm not exactly sure why so I'd really appreciate it if someone could explain the idea to me. For example this code #include <stdio.h> main() { unsigned long a=0; unsigned long b=0; int z; { printf("Enter two... (2 Replies)
Discussion started by: sizzler786
2 Replies

10. Programming

C. To segmentation fault or not to segmentation fault, that is the question.

Oddities with gcc, 2.95.3 for the AMIGA and 4.2.1 for MY current OSX 10.14.1... I am creating a basic calculator for the AMIGA ADE *NIX emulator in C as it does not have one. Below are two very condensed snippets of which I have added the results inside the each code section. IMPORTANT!... (11 Replies)
Discussion started by: wisecracker
11 Replies
fread(3s)																 fread(3s)

Name
       fread, fwrite - buffered binary input/output

Syntax
       #include <stdio.h>

       size_t fread(ptr, size, nitems, stream)
       void *ptr;
       size_t size, nitems;
       FILE *stream;

       size_t fwrite(ptr, size, nitems, stream)
       void *ptr;
       size_t size, nitems;
       FILE *stream;

Description
       The  function  reads  into a block beginning at ptr, nitems of data of the size size (usually sizeof *ptr) from the named input stream.	It
       returns the number of items actually read.

       If stream is stdin and the standard output is line buffered, then any partial output line will be flushed before any call to to satisfy the

       The function appends, at most, nitems of data of the size size (usually sizeof *ptr) beginning at ptr  to  the  named  output  stream.	It
       returns the number of items actually written.

Return Values
       The and functions return 0 upon end of file or error.

See Also
       read(2), write(2), fopen(3s), getc(3s), gets(3s), printf(3s), putc(3s), puts(3s), scanf(3s)

																	 fread(3s)
All times are GMT -4. The time now is 12:44 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy