PR ada/18819
[official-gcc.git] / gcc / ada / switch-c.ads
blob9c0e316fe756e1923d7b8bb5a256cd329c268e8d
1 ------------------------------------------------------------------------------
2 -- --
3 -- GNAT COMPILER COMPONENTS --
4 -- --
5 -- S W I T C H - C --
6 -- --
7 -- S p e c --
8 -- --
9 -- Copyright (C) 2001 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 2, 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. See the GNU General Public License --
17 -- for more details. You should have received a copy of the GNU General --
18 -- Public License distributed with GNAT; see file COPYING. If not, write --
19 -- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
20 -- Boston, MA 02110-1301, USA. --
21 -- --
22 -- GNAT was originally developed by the GNAT team at New York University. --
23 -- Extensive contributions were provided by Ada Core Technologies Inc. --
24 -- --
25 ------------------------------------------------------------------------------
27 -- This package scans front end switches. Note that the body of Usage must be
28 -- coordinated with the switches that are recognized by this package.
29 -- The Usage package also acts as the official documentation for the
30 -- switches that are recognized. In addition, package Debug documents
31 -- the otherwise undocumented debug switches that are also recognized.
33 package Switch.C is
35 procedure Scan_Front_End_Switches (Switch_Chars : String);
36 -- Procedures to scan out front end switches stored in the given string.
37 -- The first character is known to be a valid switch character, and there
38 -- are no blanks or other switch terminator characters in the string, so
39 -- the entire string should consist of valid switch characters, except that
40 -- an optional terminating NUL character is allowed. A bad switch causes
41 -- a fatal error exit and control does not return. The call also sets
42 -- Usage_Requested to True if a ? switch is encountered.
44 end Switch.C;