Method c_ptr_safe

sql/sql_string.h:214–221

    return Ptr;
  }
  inline char *c_ptr_safe()
  {
    if (Ptr && str_length < Alloced_length)
      Ptr[str_length]=0;
    else
      (void) realloc(str_length);
    return Ptr;
  }
  LEX_STRING lex_string() const
  {
    LEX_STRING lex_string = { (char*) ptr(), length() };