Hi.
my code isnt running, i think it may have something to do with the first printf and scanf functions. How do i transfer the inputted number to the following statement and have it run properly.
Code:#include <stdio.h> #include <stdlib.h> int main() { int cookies; printf("How many cookies to you have?"); scanf("%d", cookies); printf("I have %d cookie%s",cookies, (cookies!= 1) ? "s" : ""); }
In the scanf(), you need a '&' in front of "cookies" to pass the address of the int, not the value.
Your printf() should have a '\n' after "cookie%s".
haha i can't believe i missed that, thanks man!
Most experienced programmers would never admit to the dumb mistakes we all make! ;^)Originally Posted by Tokalosh
Using a decent compiler with lots of warnings enabled traps all your printf/scanf mistakes.
Code:$ gcc -Wall foo.c foo.c: In function ‘main’: foo.c:7:11: warning: format ‘%d’ expects argument of type ‘int *’, but argument 2 has type ‘int’ [-Wformat=] scanf("%d", cookies); ^ foo.c:7:5: warning: ‘cookies’ is used uninitialized in this function [-Wuninitialized] scanf("%d", cookies); ^ $
If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
If at first you don't succeed, try writing your phone number on the exam paper.
