Mercurial > hg > CbC > CbC_gcc
comparison gcc/ada/libgnat/s-strcom.ads @ 111:04ced10e8804
gcc 7
| author | kono |
|---|---|
| date | Fri, 27 Oct 2017 22:46:09 +0900 |
| parents | |
| children | 84e7813d76e9 |
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| 68:561a7518be6b | 111:04ced10e8804 |
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| 1 ------------------------------------------------------------------------------ | |
| 2 -- -- | |
| 3 -- GNAT RUN-TIME LIBRARY COMPONENTS -- | |
| 4 -- -- | |
| 5 -- S Y S T E M . S T R I N G _ C O M P A R E -- | |
| 6 -- -- | |
| 7 -- S p e c -- | |
| 8 -- -- | |
| 9 -- Copyright (C) 2002-2017, Free Software Foundation, Inc. -- | |
| 10 -- -- | |
| 11 -- GNAT is free software; you can redistribute it and/or modify it under -- | |
| 12 -- terms of the GNU General Public License as published by the Free Soft- -- | |
| 13 -- ware Foundation; either version 3, or (at your option) any later ver- -- | |
| 14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- | |
| 15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- | |
| 16 -- or FITNESS FOR A PARTICULAR PURPOSE. -- | |
| 17 -- -- | |
| 18 -- As a special exception under Section 7 of GPL version 3, you are granted -- | |
| 19 -- additional permissions described in the GCC Runtime Library Exception, -- | |
| 20 -- version 3.1, as published by the Free Software Foundation. -- | |
| 21 -- -- | |
| 22 -- You should have received a copy of the GNU General Public License and -- | |
| 23 -- a copy of the GCC Runtime Library Exception along with this program; -- | |
| 24 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- | |
| 25 -- <http://www.gnu.org/licenses/>. -- | |
| 26 -- -- | |
| 27 -- GNAT was originally developed by the GNAT team at New York University. -- | |
| 28 -- Extensive contributions were provided by Ada Core Technologies Inc. -- | |
| 29 -- -- | |
| 30 ------------------------------------------------------------------------------ | |
| 31 | |
| 32 -- This package contains functions for runtime comparisons on strings | |
| 33 | |
| 34 pragma Compiler_Unit_Warning; | |
| 35 | |
| 36 package System.String_Compare is | |
| 37 | |
| 38 function Str_Compare | |
| 39 (Left : System.Address; | |
| 40 Right : System.Address; | |
| 41 Left_Len : Natural; | |
| 42 Right_Len : Natural) return Integer; | |
| 43 -- Compare the string starting at address Left of length Left_Len | |
| 44 -- with the string starting at address Right of length Right_Len. | |
| 45 -- The comparison is in the normal Ada semantic sense of string | |
| 46 -- comparison. The result is -1,0,+1 for Left<Right, Left=Right, | |
| 47 -- Left>Right respectively. This function works with 4 byte words | |
| 48 -- if the operands are aligned on 4-byte boundaries and long enough. | |
| 49 | |
| 50 function Str_Compare_Bytes | |
| 51 (Left : System.Address; | |
| 52 Right : System.Address; | |
| 53 Left_Len : Natural; | |
| 54 Right_Len : Natural) return Integer; | |
| 55 -- Same functionality as Str_Compare but always proceeds by bytes. | |
| 56 -- Used when the caller knows that the operands are unaligned, or | |
| 57 -- short enough that it makes no sense to go by words. | |
| 58 | |
| 59 end System.String_Compare; |