1 //===========================================================================
5 // ANSI standard strrchr() routine
7 //===========================================================================
8 //####ECOSGPLCOPYRIGHTBEGIN####
9 // -------------------------------------------
10 // This file is part of eCos, the Embedded Configurable Operating System.
11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
13 // eCos is free software; you can redistribute it and/or modify it under
14 // the terms of the GNU General Public License as published by the Free
15 // Software Foundation; either version 2 or (at your option) any later version.
17 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
18 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
19 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
22 // You should have received a copy of the GNU General Public License along
23 // with eCos; if not, write to the Free Software Foundation, Inc.,
24 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
26 // As a special exception, if other files instantiate templates or use macros
27 // or inline functions from this file, or you compile this file and link it
28 // with other works to produce a work based on this file, this file does not
29 // by itself cause the resulting work to be covered by the GNU General Public
30 // License. However the source code for this file must still be made available
31 // in accordance with section (3) of the GNU General Public License.
33 // This exception does not invalidate any other reasons why a work based on
34 // this file might be covered by the GNU General Public License.
36 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
37 // at http://sources.redhat.com/ecos/ecos-license/
38 // -------------------------------------------
39 //####ECOSGPLCOPYRIGHTEND####
40 //===========================================================================
41 //#####DESCRIPTIONBEGIN####
43 // Author(s): jlarmour
44 // Contributors: jlarmour
50 //####DESCRIPTIONEND####
52 //===========================================================================
56 #include <pkgconf/libc_string.h> // Configuration header
60 #include <cyg/infra/cyg_type.h> // Common type definitions
61 #include <cyg/infra/cyg_trac.h> // Tracing support
62 #include <cyg/infra/cyg_ass.h> // Assertion support
63 #include <string.h> // Header for this file
64 #include <stddef.h> // Compiler definitions such as size_t, NULL etc.
65 #include <cyg/libc/string/stringsupp.hxx> // Useful string function support and
71 strrchr( const char *s, int c ) CYGBLD_ATTRIB_WEAK_ALIAS(__strrchr);
76 __strrchr( const char *s, int c )
78 const char *last = NULL;
81 CYG_REPORT_FUNCNAMETYPE( "__strrchr", "returning %08x" );
82 CYG_REPORT_FUNCARG2( "s=%08x, c=%d", s, c );
84 CYG_CHECK_DATA_PTR( s, "s is not a valid pointer!" );
100 CYG_REPORT_RETVAL( last );
102 return (char *) last;