C Tutorial/printf scanf/scanf scan set

Using a scan set

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

  char z[ 9 ]; 
  
  printf( "Enter string: " );
  scanf( "%[aeiou]", z );
  printf( "The input was \"%s\"\n", z );
  return 0;

}</source>

Enter string: 3
The input was ""