compiler error

[stormswift]

Hi

I have tried to write 2 of 4 programs. Both i have finished, compiled with no errors or warnings. Problem arises when i run the programs or trace. I have a message:-

General Protection Exception
0x5C87:0x47B3
program(1) 0x5C87:0x47B3 Processor Fault


both programs have the same message, different numbers?
There is also a linker error that occurs:

No module definition file specified:using defaults.


Any help in rectifing the problem would be appreciated.
If you need to see the code give me a shout and i'll post it.
The compiler is turboc++ 4.5 for windows


Thanx

[Shadow]

I have received errors similar to those before. IIRC they were easily solved. Could we see some code?

[stormswift]

The program below compiled no errors/warnings. Yet when I trace, it gets past the opening of the files. Goes to the headings function gets past the first print line the stops with the general protection message on the second print line. It is the same for the first program. I think, therefor, a problem lies within the headings function?

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
#include <conio.h>
#include <math.h>
#include <time.h>

#define FILE_1 "rec_test.txt"
#define FILE_2 "A:zencvf.dat"
#define FILE_3 "sorted valid.dat"
#define PRINT "printout"
#define SPACES " "
#define SIZE sizeof(union s_rec)
#define MAXLINES 60
#define VALID 1
#define INVALID 0

struct cust_i_r { // details of issue/return file
char rec_type;
char cust_code[6];
char part_no[7];
int quantity;
};


struct cust_del { // details of deletion file
char rec_type;
char cust_code[6];
};

struct cust_cre { // details of creation file
char rec_type;
char cust_code[6];
char cust_name[21];
char cust_addr[61];
float cust_bal;
long credit_limit;
};


union s_rec { // details of union
struct cust_i_r iss;
struct cust_del del;
struct cust_cre cre;
};

struct tm todays_date;

FILE *in_ptr;
FILE *out_ptr;
FILE *report_ptr;

int lines = 0;
int page_no =0;


//function prototypes

FILE *open_file(char *filename, char *mode);
void p2_headings(void);
void printout(union s_rec *ptr);
void summary2(int c, int d, int i, int r, int t_rec, int c_tot);
int compare(const void*a, const void*b);

void main()
{
union s_rec *buf, *start, *move;
int c_rec = 0, d_rec = 0;
int i_rec = 0, r_rec = 0;
int tot_recs = 0, tot_cust = 0;
int i, num = 0;
char code[6] = "00000";

in_ptr = open_file(FILE_2 , "rb");
out_ptr = open_file(FILE_3 , "wb");
report_ptr = open_file(PRINT , "wb");


p2_headings();
lines+=7;


while( (fread(&buf, SIZE, 1, in_ptr) ) == 1 )
{
num++;
}

start = (union s_rec*)malloc(num*SIZE);
rewind(in_ptr);

fread(start, SIZE*num, 1, in_ptr);

qsort(start, num, SIZE, compare);

fwrite(start, SIZE*num, 1, out_ptr);

move = start;

for(i=0; i<num; i++)
{
printout(move);
switch(move->cre.rec_type)
{
case 'C':c_rec++;
tot_recs++;
if( strcmp(code, move->cre.cust_code) )
{
tot_cust++;
strcpy(code, move->cre.cust_code);
}
break;
case 'D':d_rec++;
tot_recs++;
if( strcmp(code, move->cre.cust_code) )
{
tot_cust++;
strcpy(code, move->cre.cust_code);
}
break;
case 'I':i_rec++;
tot_recs++;
if( strcmp(code, move->cre.cust_code) )
{
tot_cust++;
strcpy(code, move->cre.cust_code);
}
break;
case 'R':r_rec++;
tot_recs++;
if( strcmp(code, move->cre.cust_code) )
{
tot_cust++;
strcpy(code, move->cre.cust_code);
}
break;
}

move++;
}

fclose(in_ptr);
fclose(out_ptr);
free(start);

summary2(c_rec,d_rec,i_rec,r_rec,tot_recs,tot_cust );

fclose(report_ptr);

}


FILE *open_file(char *filename, char *mode)
{
FILE *fp_ptr;

if( (fp_ptr = fopen(filename,mode) ) == NULL)
{
clrscr();
gotoxy(5,5);
printf("Unable to open file:\t%s",filename);
gotoxy(5,8);
printf("program terminating.\t Press any key to continue.");
getch();
}
return(fp_ptr);
} /* end open_file() */


void p2_headings(void)
{


fprintf(report_ptr,"\n%s%-63s%-27s %d/%d/%d%-10s %d\n\n",
"ZENITH PAINTS",
"TRANSACTION ACTIVITY REPORT",
"DATE:",
todays_date.tm_mday,
todays_date.tm_mon+1,
todays_date.tm_year-100,
"PAGE:",
page_no);
fprintf(report_ptr,"\n%s%-6s%-7s%-6s%-94s%-10s\n",
"REC","CUST",
"PART","I/R"
"CUSTOMER",
"CREDIT");
fprintf(report_ptr,"%s%-5s%-8s%-5s%-16s%-25s%-53s%-9s\n\n",
"TYPE","CODE",
"NUMBER","QTY",
"CUSTOMER NAME",
"CUSTOMER ADDRESS",
"BALANCE","LIMIT");

} /* end p2_headings() */


void printout(union s_rec *ptr)
{
char temp_addr[61];
char temp_name[21];

if( lines >= (MAXLINES-14) )
{
fprintf(report_ptr,"\f"); /* check for end of page */
page_no++;
p2_headings();
lines = 7;
}

fprintf(report_ptr,"%-2c%-7s",
ptr->cre.rec_type,
ptr->cre.cust_code);

switch(ptr->cre.rec_type)
{
case 'c':
case 'C':strcpy(temp_name, ptr->cre.cust_name);
strcat(temp_name, SPACES);
strcpy(temp_addr, ptr->cre.cust_addr);
strcat(temp_addr, SPACES);
fprintf(report_ptr,"%-36s%-62s %09f %07ld\n",
temp_name,
temp_addr,
ptr->cre.cust_bal,
ptr->cre.credit_limit);
lines++;
return;
case 'd':
case 'D':lines++;
return;
case 'i':
case 'I':
case 'r':
case 'R':fprintf(report_ptr,"%-8s%-6s\n",
ptr->iss.part_no,
ptr->iss.quantity);
lines++;
return;
default: return;
}

} /* end printout() */



void summary2(int c, int d, int i, int r, int t_rec, int c_tot)
{


fprintf(report_ptr,"\n\n\n%-38s%-6d\n%-38s%-6d\n",
"NEW CUSTOMERS:",c,
"DELETED CUSTOMERS:",d);
fprintf(report_ptr,"%-38s%-6d\n%-38s%-6d\n\n",
"ISSUE FROM STOCK:",i,
"RECIEPTS:",r);
fprintf(report_ptr,"\n%-38s%-6d\n%-38s%-6d",
"TOTAL CUSTOMERS:",c_tot,
"TOTAL TRANSACTIONS:",t_rec);
fprintf(report_ptr,"\n\n\n%-55s",
"*** END OF TRANSACTION REPORT ***");
} /* end summary2() */


int compare(const void*a, const void*b)
{
int val;

val = strcmp( ((union s_rec*)a)->cre.cust_code,
((union s_rec*)b)->cre.cust_code);
if(val)
{
return val;
}
return ( ((union s_rec*)b)->cre.rec_type -
((union s_rec*)a)->cre.rec_type );
}

[Shadow]

I don't even want to read through that. Usually when I got those errors it was because of an improper return 0 somewhere. I'll leave this to someone who wants to read through the code.

I did notice this:
> void main()
That's wrong.

: : Edit : :
Turbo isn't the best of compilers in my opinion. Remember to use code tags. This way it's alot easier for others to look for errors.

[Salem]

Couple of pretty serious mis-uses of printf/scanf

zzz.c:67: warning: return type of `main' is not `int'
void main()
Should be int main

zzz.c: In function `p2_headings':
zzz.c:187: warning: too few arguments for format
fprintf(report_ptr,"\n%s%-6s%-7s%-6s%-94s%-10s\n",
"REC","CUST",
"PART","I/R" // Missing comma here?
"CUSTOMER",
"CREDIT");

zzz.c: In function `printout':
zzz.c:237: warning: format argument is not a pointer (arg 4)
case 'R':fprintf(report_ptr,"%-8s%-6s\n", // %d for ints
ptr->iss.part_no,
ptr->iss.quantity);

[breed]

Hi Stormswift,

I know where your going with this, I have just submitted my two progs to computeach.
Try getting rid of the ampersand before buf, let me know if it works out.

while( (fread(&buf, SIZE, 1, in_ptr) ) == 1 )


also if you feel you need to talk to someone who has either been through or going through the same mind blowing experiences,

then try this site......the void main gang are all here