tc terminates after displaying output

[hasanasghar00]

hello
i wrote pgm for reading hex file. the program is working fine btu the problem is that after giving output tc terminates givign illegal operation message.
pls help
thanks

THE CODE:

int main(void)
{
FILE *fptr;
char fname[10],temp[10];
int n=0,i=0,j=0,k=0,*bof;
char ch,(*addr)[4];
char (*records)[44];

clrscr();

cout<<&quot;Enter file name: &quot;;
cin>>fname;

if( (fptr=fopen(fname,&quot;r&quot) == NULL )
{
cout<<&quot;File not opened&quot;;
getch();
exit(0);
}

while( (ch=getc(fptr)) != EOF )
if(ch=='\n')
n=n+1;

rewind(fptr);

records=(char(*)[44])malloc(n*sizeof(*records));

if(records==NULL)
{
cout<<&quot;Memory not allocated&quot;;
exit(0);
}

while( (ch=getc(fptr)) != EOF )
{
records[j]=ch;
j=j+1;
if(ch=='\n')
{
records[--j]='\0';
i=i+1;
j=0;
}
}

fclose(fptr);

cout<<&quot;\nHex file is:\n&quot;;
for(i=0;i<n;i++)
puts(records);

if( ( addr=(char(*)[4])malloc(n*sizeof(*addr)) ) ==NULL )
{
cout<<&quot;Memory not allocated&quot;;
exit(0);
}

if( ( bof=(int*)malloc(n*sizeof(int)) ) ==NULL )
{
cout<<&quot;Memory not allocated&quot;;
exit(0);
}

cout<<&quot;\nNo. of bytes are:\n&quot;;
for(i=0;i<n;i++)
{
k=0;
for(j=1;j<3;j++)
{
temp[k++]=records[j];
}
temp[k]='\0';
bof=atoi(temp);
cout<<&quot; &quot;<<bof;
}

cout<<&quot;\nAddresses are:\n&quot;;
for(i=0;i<n;i++)
{
k=0;
for(j=3;j<7;j++)
{
temp[k++]=records[j];
}
temp[k]='\0';
strcpy(addr,temp);
cout<<&quot; &quot;<<addr;
}

free(records);
free(addr);
free(bof);

if(heapcheck()==_HEAPCORRUPT)
cout<<&quot;\nHeap is corrupted&quot;;

getch();
return 0;
}

 

[smaniraja]

Hi hasanasghar00,
see the corrected code below.

--Maniraja S

#include <stdio.H>
#include <iostream.h>
#include <conio.h>
#include <stdlib.h>
#include <alloc.h>
#include <string.h>

int main(void)
{
FILE *fptr;
char fname[10],temp[10];
int n=0,i=0,j=0,k=0, *bof;
char ch,(*addr)[4];
char (*records)[44];
clrscr();
cout<<&quot;Enter file name: &quot;;
cin>>fname;
if( (fptr=fopen(fname,&quot;r&quot) == NULL )
{
cout<<&quot;File not opened&quot;;
getch();
exit(0);
}
while( (ch=getc(fptr)) != EOF )
if(ch=='\n')
n=n+1;
cout << &quot;Number of lines in the program : &quot; << n << endl;
rewind(fptr);
records=(char(*)[44])malloc(n*sizeof(*records));
if(records==NULL)
{
cout<<&quot;Memory not allocated&quot;;
exit(0);
}
while( (ch=getc(fptr)) != EOF )
{
records[j]=ch; // error : in records = ch; assigning a character to a pointer variable.
j=j+1;
if(ch=='\n')
{
records[--j]='\0'; // same type of error as before.
i=i+1;
j=0;
}
}
fclose(fptr);

cout<<&quot;\nHex file is:\n&quot;;
for(i=0;i<n;i++)
puts(records); // Error : puts(records);

if( ( addr=(char(*)[4])malloc(n*sizeof(*addr)) ) == NULL )
{
cout<<&quot;Memory not allocated&quot;;
exit(0);
}

if( ( bof=(int*)malloc(n*sizeof(int)) ) ==NULL )
{
cout<<&quot;Memory not allocated&quot;;
exit(0);
}

cout<<&quot;\nNo. of bytes are:\n&quot;;
for(i=0;i<n;i++)
{
k=0;
for(j=1;j<3;j++)
{
temp[k++]=records[j];
}
temp[k]='\0';
*bof=atoi(temp);
cout<<&quot; &quot;<<bof;
}

cout<<&quot;\nAddresses are:\n&quot;;
for(i=0;i<n;i++)
{
k=0;
for(j=3;j<7;j++)
{
temp[k++]=records[j]; // Error : records[j]; same type of error.
}
temp[k]='\0';
strcpy(addr,temp); //error : addr is a pointer vaiable to a 4 element array.
cout<<&quot; &quot;<<addr;
}

free(records);
free(addr);
free(bof);

if(heapcheck()==_HEAPCORRUPT)
cout<<&quot;\nHeap is corrupted&quot;;

getch();
return 0;
}