#include "mystring.h"

int mystring::find_last(char ch, size_t offset) const

{

  if(offset == (size_t)-1)

    offset = rep->length-1;

  const char* ptr = rep->buf + offset;

  while(ptr >= rep->buf) {

    if(*ptr == ch)

      return ptr - rep->buf;

    --ptr;

  }

  return -1;

}