I'm having trouble with this bit of code I've
got for college. It compiles fine but as soon as it runs it comes back
with an illegal operation. I just con't figure it out! Can
anyone help??
// I N C L U D E S
////////////////////////////////////////////////////////////
#include <stdio.h>
#include
<stdlib.h>
#include <math.h>
// M A I N
////////////////////////////////////////////////////////////////////
void main(void)
{
int
done=0, // exit
flag
number,
// the random nunber
num_tries=0, //
number of tries
guess; // the players
guess
unsigned int *clock = (unsigned int
*)0x000046CL; // pointer to clock
// SECTION 1
//////////////////////////////////////////////////////////////////
// print out introductory
instructions
printf("\nI'm thinking of a number from
1-100.");
printf("\nTry and guess it!\n");
// seed the random number generator with the
time
srand(*clock);
// choose a random number from
1-100
number = 1 + rand() % 100;
// SECTION 2
//////////////////////////////////////////////////////////////////
// main event loop
while(!done)
{
// SECTION 3
//////////////////////////////////////////////////////////////////
// query user for
input (the event)
printf("\nWhat's your
guess?");
scanf("%d",&guess);
// SECTION 4
//////////////////////////////////////////////////////////////////
// increment number of
tries
num_tries++;
// process the
event
if (guess >
number)
printf("\nToo
big!\n");
else
if
(guess < number)
printf("\nToo small!\n");
else
{
// the user must have
guessed the number
printf("\nYou guessed the number in %d tries!!!\n",num_tries);
//
set the exit flag
done=1;
} //
end else
} // end
while
} // end main
ANY help would be appreciated.
Also, someone told me to include the graph.h,
but Visual Studio 6.0 doesn't seem to have that. What difference would it
make me anyway??
>
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<
Hi,
To answer your questions, I am using win 98
(with VS C++ 6.0 compiler/editor). I was given this code by my college
to edit. I had to make the random more random by using the system
clock. The original code had graph.h at the pre-processor stage but my
compiler could'nt find it in my include DIR, if that will make any
difference. Also, if I comment out the line unsigned int *clock = (unsigned int *)0x000046CL; // pointer
to clock and initialize rand with 1 it works fine but this isn't
really any good because I need to use the timer so that I can pass the
assessment at college.
I have seet rand() being initialized by the
timer in other examples of such a program and it worked fine in them but it
just won't work in mine.
Also, in the other couple of examples I have
seen this implemented with had used graph.h, I don't know if this would
effect it. Do you know what graph.h is used for??
Thanks.
