C Tutorial/printf scanf/printf conversion

Using the p, n, and % conversion specifiers

<source lang="cpp">#include <stdio.h> int main() {

  int *ptr;
  int x = 12345;
  int y;        
  
  ptr = &x;     
  printf( "The value of ptr is %p\n", ptr );
  printf( "The address of x is %p\n\n", &x );
  printf( "Total characters printed on this line:%n", &y );
  printf( " %d\n\n", y );
  y = printf( "This line has 28 characters\n" );
  printf( "%d characters were printed\n\n", y );
  
  printf( "Printing a %% in a format control string\n" );
  return 0;

}</source>

The value of ptr is 9a378
The address of x is 9a378
Total characters printed on this line: 38
This line has 28 characters
28 characters were printed
Printing a % in a format control string