#include <stdio.h>
#include <stdlib.h>
int main()
{
int x = 1;
printf("please make a selection with your keyboard\n");
sleep(1);
printf("1.\n");
char input;
scanf ("%c", &input);
switch (input) {
case '1':
x=x+1;
printf(x);
}
return(0);
}
I am trying a make a variable add to itself and then print that variable out but I can't seem to get my code to work.
my output error is
newcode1.c: In function ‘main’:
newcode1.c:20:2: warning: passing argument 1 of ‘printf’ makes pointer from integer without a cast [enabled by default]
In file included from newcode1.c:1:0:
/usr/include/stdio.h:362:12: note: expected ‘const char * __restrict__’ but argument is of type ‘int’
newcode1.c:20:2: warning: format not a string literal and no format arguments [-Wformat-security]
As Shafik already wrote you need to use the right format because scanf
gets you a char.
Don't hesitate to look here if u aren't sure about the usage: http://www.cplusplus.com/reference/cstdio/printf/
Hint: It's faster/nicer to write x=x+1
; the shorter way: x++;
Sorry for answering what's answered just wanted to give him the link - the site was really useful to me all the time dealing with C.
Source: Stackoverflow.com