C led 4 digit display fatal run time error :S

[ukpc5]

hi i'm currently getting a fatal run time error with my program im trying to use while loops to print the stdin horisotaly in 0's in the stdout


#include <stdio.h>

int main( void )
{
int number1, number2, number3, number4, num1;
scanf("%d%d%d%d" , &number1, &number2, &number3, &number4);
printf("%d%d%d%d" , number1, number2, number3, number4);
if(number1 == 1)
num1 = 1;
if(number1 == 2)
printf("%d" , number1);
if(number1 ==3)
printf("%d" , number1);
if(number1 == 4)
printf("%d" , number1);
if(number1 == 5)
printf("%d" , number1);
if(number1 == 6)
printf("%d" , number1);
if(number1 == 7)
printf("%d" , number1);
if(number1 == 8)
printf("%d" , number1);
if(number1 == 9)
printf("%d" , number1);

while (num1 = 1)
{
printf("00 /n" );
printf(" 0 /n");
printf(" 0 /n");
printf(" 0 /n");
printf("000/n");
num1= num1 - 1;}
return 0;}




i do relise that the print f will print the stdin as well as the hopefully print the while loop
as im slighty experimenting hopfully someone can correct me as the fatal runtime error is stopping me

 

[ItsMike]

So this should make ASCII art using 0's, huh ?

 

[ukpc5]

yeah at the mintue i've got it setup to only work with the the `1st number if its 1 just trying to get that to work first before i move the others however its errored

 

[ItsMike]

What do you mean by error-ed ? does it compile ? or does it not run well ?
What does it output ?

 

[ukpc5]

it spends a while trying to compile and the gives me a fatal run time error i thought this was due to the loop repeating meaning it could never end so i threw in the num1 reset at the end of the loop so it wouldn't repeat however i still have the error

 

[vlad777]

while (num1 = 1)
{

should be

while (num1 == 1)
{

 

[ItsMike]

When you execute "while (num = 1)"
You actaully put the value 1 into the variable num.
So you get an infinite loop.
you probably meant to use "while (num == 1)".
If a loop runs only once its the same as an IF statement.

 

[ukpc5]

thank you! i've spent the whole day over one equals sign ... oh dear but thank you!!

 

[ukpc5]

this questions has been solved thanks to very helpful people including people in chat who also helped by correcting my ////'s with \\\\'s thanks guy your help has been great