------------------------------------------------------------------------------ -- -- -- GNAT RUN-TIME LIBRARY COMPONENTS -- -- -- -- S Y S T E M . S T R I N G _ C O M P A R E -- -- -- -- S p e c -- -- -- -- Copyright (C) 2002-2005 Free Software Foundation, Inc. -- -- -- -- GNAT is free software; you can redistribute it and/or modify it under -- -- terms of the GNU General Public License as published by the Free Soft- -- -- ware Foundation; either version 2, or (at your option) any later ver- -- -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- -- for more details. You should have received a copy of the GNU General -- -- Public License distributed with GNAT; see file COPYING. If not, write -- -- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, -- -- Boston, MA 02110-1301, USA. -- -- -- -- As a special exception, if other files instantiate generics from this -- -- unit, or you link this unit with other files to produce an executable, -- -- this unit does not by itself cause the resulting executable to be -- -- covered by the GNU General Public License. This exception does not -- -- however invalidate any other reasons why the executable file might be -- -- covered by the GNU Public License. -- -- -- -- GNAT was originally developed by the GNAT team at New York University. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ -- This package contains functions for runtime comparisons on strings package System.String_Compare is function Str_Compare (Left : System.Address; Right : System.Address; Left_Len : Natural; Right_Len : Natural) return Integer; -- Compare the string starting at address Left of length Left_Len -- with the string starting at address Right of length Right_Len. -- The comparison is in the normal Ada semantic sense of string -- comparison. The result is -1,0,+1 for Left<Right, Left=Right, -- Left>Right respectively. This function works with 4 byte words -- if the operands are aligned on 4-byte boundaries and long enough. function Str_Compare_Bytes (Left : System.Address; Right : System.Address; Left_Len : Natural; Right_Len : Natural) return Integer; -- Same functionality as Str_Compare but always proceeds by bytes. -- Used when the caller knows that the operands are unaligned, or -- short enough that it makes no sense to go by words. end System.String_Compare;