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Full Discussion: Memory Fault,Core dumped
Top Forums Programming Memory Fault,Core dumped Post 302203881 by usshell on Tuesday 10th of June 2008 05:51:47 AM
Old 06-10-2008
Memory Fault,Core dumped
I have written a code in UNIX which is complied by using g++. Compling with turbo C didnt yield any errors, but with g++ I am getting Memory fault, core dumped. Could anyone help me out with this?

Given below is the code:

Code:
#include<stdio.h>

#include<string.h>
#include<stdlib.h>
#include<ctype.h>
main()
{
long int lt;
int i,r=0,p,m=0,q=0;
char a[100];
char *str;
//a=(char*) malloc(sizeof(char) *100);
str=(char *)  malloc(sizeof(char) *100);


scanf("%s",str);
p=strlen(str);
for(i=0;i<p;i++)
{
        if(isdigit(str[i])==0)
        {
        if((str[i]!='.')&& str[i]!='-')
       {
        m=1;
        }
        }
}
for(i=0;i<=p;i++)
{
        if(str[i]=='-')
        r=r+1;
}
for(i=0;i<=p;i++)
{
        if(str[i]=='.')
        q=q+1;
}
lt=atol(str);
if(p>=16 || strcmp(str,NULL)==0 || m==1 || r>1 ||q>1 || lt==0)
{
printf("ERROR");
}
else
{
//ltoa(lt,a,10);
sprintf(a,"%l",lt);
printf("%s",a);
}
}

Last edited by vino; 06-10-2008 at 09:35 AM.. Reason: added code tags
 

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LEARN ABOUT MOJAVE

core

CORE(5) 						      BSD File Formats Manual							   CORE(5)

NAME

     core -- memory image file format

SYNOPSIS

     #include <sys/param.h>

DESCRIPTION

     A small number of signals which cause abnormal termination of a process also cause a record of the process's in-core state to be written to
     disk for later examination by one of the available debuggers.  (See sigaction(2).)  This memory image is written to a file named by default
     core.pid, where pid is the process ID of the process, in the /cores directory, provided the terminated process had write permission in the
     directory, and the directory existed.

     The maximum size of a core file is limited by setrlimit(2).  Files which would be larger than the limit are not created.

     The core file consists of the Mach-O(5) header as	described in the <mach-o/loader.h> file.  The remainder of the core file consists of vari-
     ous sections described in the Mach-O(5) header.

NOTE

     Core dumps are disabled by default under Darwin/Mac OS X.	To re-enable core dumps, a privileged user must do one of the following

     * Edit /etc/launchd.conf or $HOME/.launchd.conf and add a line specifying the limit limit core unlimited

     * A privileged user can also enable cores with launchctl limit core unlimited

     * A privileged user can also enable core files by using ulimit(1) or limit(1) depending upon the shell.

SEE ALSO

     gdb(1), setrlimit(2), sigaction(2), Mach-O(5), launchd.conf(5), launchd.plist(5), sysctl(8)

HISTORY

     A core file format appeared in Version 6 AT&T UNIX.

BSD
								   June 26, 2008							       BSD
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