#include <stdio.h>
#include <string.h>
#include <jstring.h>

void main()
  {
    JCHAR buffer[80];
    JSTRING where;

    strcpy( buffer, "video x-rays" );
    where = jstrchr( buffer, 'x' );
    if( where == NULL ) {
        printf( "'x' not found\n" );
    }
  }