The bus in question is the address buss and it contains an illegal value. This is almost always the result of dereferencing a pointer that contains an illegal value.
Here is a program that, I think, will compile with every C or C++ compiler, but should cause a bus error when the second printf is attempted...
Last edited by Perderabo; 01-16-2005 at 03:30 PM..
Reason: Remove html which is no longer supported
Hi there
I am running soalris 9 on a sun fire 480r and all of a sudden (today) whenever the users run the command `top` we get the following message `bus error`
does anybody have any information on what this is all about and whether there is a routine i can perform to gather more... (3 Replies)
aix 5.3 ML1
system was functioing well, when suddenly telnet session hung and then I got the following message "Bus error(coredump)"
would appreciate if anyone would assist as to what to do next. (3 Replies)
Hi,
I am using HP-UX.
While i try to run the Sqlplus command using the shel script in encounter the following error:
<shell script name>: some number Bus Error(coredump)
What may be the reason behind this.
I read few previous threads in this forum where i found some similar case. There it was... (2 Replies)
Hi!
I've got a program which runs fine under Linux, but I have compiled it to run under SunOS 5.8 in a Sparc computer, and now it sometimes fails with "bus error".
Ussing gdb I surfed to the error line, which is
*pointer = some_vector;
where some_vector is a 16 byte struct (4 integers)... (1 Reply)
Hi all,
I am getting bus error problem in SunOS. Can you please help me out in this regard.
Actually, my entire code till the last line has been executed. But after tht i am getting a bus error. Please help me.
Thanks in advance.
Charu. (4 Replies)
Hi all,
I am quite weak in C but I need to get some work done. Hope someone can help me out. I keep getting this error when i try to run my C application in my HP-UX 10.20 machine.
Some code snippet:
Month(DBTime) =====This is a function which will return variable "CutOffTime" to be use... (5 Replies)
I am getting bus error when i include "#!/bin/ksh". If i remove interpreter then script is working. Can anyone explain this and how can i avoid this error?
Operating System is HP-UX B.11.23 U 9000/800 1091834454 (2 Replies)
Hi everyone,
I have a GUI project and when I run it and left in idle state for a long time(there is nothing done, just opened GUI, no more actions),I get bus error after trying to do anything with it.
I've tried to build it in debug mode and use gdb, but I don't get any error in debug mode.It... (3 Replies)
Hi, I am new to C++ and unix. I am trying to write a programm for inserting elements into a binary tree. To get the code flow I used few Couts and m facing buss error while insertion.
Below is the code snippet. explainations needed. thanks :)
#include <iostream.h>
struct mytree
{
int... (1 Reply)
Hi all,
I am writing a phonebook program to store names and number using a list. Here is the code for the function which allows the user to enter the name and number (where the error occurs).
//THIS FUNCTION ADDS A NEW ENTRY TO THE phonebook_list
void insert(void){
//variables
int... (5 Replies)
Discussion started by: kdejan
5 Replies
LEARN ABOUT OSF1
unifdef
unifdef(1) General Commands Manual unifdef(1)NAME
unifdef - Removes #ifdefed lines
SYNOPSIS
unifdef [-tlc] [-Dsymbol] [-idsymbol] [-iusymbol] [file] [-Usymbol]
The unifdef command partially simulates the behavior of the C preprocessor in processing #ifdef conditionals.
OPTIONS
Complements the action of unifdef; retains lines that would normally be removed and removes lines that would normally be retained. Speci-
fies symbol as a defined #ifdef symbol. Specifies defined lines inside certain #ifdefs to be ignored but copied out. Specifies undefined
lines inside certain #ifdefs to be ignored and not copied out. Replaces removed lines with blank lines instead of deleting them. Pro-
cesses plain text (rather than C code) input. The unifdef command does not try to recognize comments, single quotes, and double quotes.
Specifies symbol as an undefined #ifdef symbol.
DESCRIPTION
The unifdef command recognizes nested #ifdefs, comments, single and double quotes of C syntax so that it can function correctly, but does
not include files or interpret macros. The unifdef command recognizes, but does not remove comments.
The unifdef command takes its input from stdin if no file argument is given, and copies its output to stdout.
You specify the symbols you want defined with -Dsymbol or undefined with -Usymbol and the lines inside those #ifdefs are copied to the out-
put or removed, as appropriate. The #ifdef, #ifndef, #else, #elif, and endif lines associated with symbol are also removed. The #ifdefs
involving unspecified symbols are untouched and copied out along with their associated #ifdef, #else, elif, and #endif lines. If the same
symbol appears in more than one argument, only the first occurrence is significant. For instance, if an #ifdef X occurs nested inside
another #ifdef X, the inside #ifdef is considered an unrecognized symbol.
If you use #ifdefs to delimit non-C lines, such as comments or unfinished code, it is necessary to specify which symbols are to be used for
that purpose. Otherwise, the unifdef command tries to parse for quotes and comments in those #ifdef lines.
Keywords
The following keywords can be used with the unifdef command:
ifdef ifndef else endif elif
The unifdef command uses the elif keyword as follows. (Note that "Understood" means unifdef knows how to convert elif to if.) Understood
Not understood Not understood
For example:
# ifdef X x # elif defined (Y) y # elif defined (A) || defined (B) a # else default # endif
The following list shows the results of using the elif keyword with variables:
-DX x
-UX # if defined (Y) y # elif defined (A) || defined (B) a # else default # endif -UX -DY y
-UY -UX # if defined (Y) y # elif defined (A) || defined (B) a # else default # endif
-UY -UX -DA # if defined (Y) y # elif defined (A) || defined (B) a # else default # endif
NOTES
The unifdef command cannot process cpp constructs such as:
#if defined(X) || defined(Y)
DIAGNOSTICS
The unifdef command can fail for several reasons: a premature end of file, or an inappropriate else, elif, or endif.
EXIT STATUS
Exit status is 0 if output is an exact copy of input, 1 if not, 2 if the unifdef command fails.
EXAMPLES
The following command line causes the unifdef command to read the file original.c and remove the #ifdef A lines. It then removes every-
thing following an #elif/#else associated with the #ifdef A down to the #endif: unifdef -DA original.c > modified.c The following command
line causes the unifdef command to read the file original.c, and remove the #ifdef A down to either its associated #elif/#else, or its
associated #endif: unifdef -UA original.c > modified.c
In the case of the #elif, the #elif is replaced with #if. In the case of #else, the #else is deleted along with its associated
#endif.
SEE ALSO
Commands: diff(1)unifdef(1)