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comparison packages/language/c/libc/current/src/stdlib/abs.cxx @ 0:3111d98ba7b3 ecos-v1_1-release

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Initial commit of eCos version 1.1
author jlarmour
date Tue, 11 May 1999 11:16:07 +0000
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children 443894e2e912
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-1:000000000000 0:3111d98ba7b3
1 //===========================================================================
2 //
3 // abs.cxx
4 //
5 // Real alternative for inline implementation of the ANSI standard
6 // abs() utility function defined in section 7.10.6.1 of the standard
7 //
8 //===========================================================================
9 //####COPYRIGHTBEGIN####
10 //
11 // -------------------------------------------
12 // The contents of this file are subject to the Cygnus eCos Public License
13 // Version 1.0 (the "License"); you may not use this file except in
14 // compliance with the License. You may obtain a copy of the License at
15 // http://sourceware.cygnus.com/ecos
16 //
17 // Software distributed under the License is distributed on an "AS IS"
18 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
19 // License for the specific language governing rights and limitations under
20 // the License.
21 //
22 // The Original Code is eCos - Embedded Cygnus Operating System, released
23 // September 30, 1998.
24 //
25 // The Initial Developer of the Original Code is Cygnus. Portions created
26 // by Cygnus are Copyright (C) 1998 Cygnus Solutions. All Rights Reserved.
27 // -------------------------------------------
28 //
29 //####COPYRIGHTEND####
30 //===========================================================================
31 //#####DESCRIPTIONBEGIN####
32 //
33 // Author(s): jlarmour
34 // Contributors: jlarmour@cygnus.co.uk
35 // Date: 1998-02-13
36 // Purpose:
37 // Description:
38 // Usage:
39 //
40 //####DESCRIPTIONEND####
41 //
42 //===========================================================================
43
44 // CONFIGURATION
45
46 #include <pkgconf/libc.h> // Configuration header
47
48 // Include the C library?
49 #ifdef CYGPKG_LIBC
50
51 // INCLUDES
52
53 #include <cyg/infra/cyg_type.h> // Common type definitions and support
54 #include <cyg/infra/cyg_trac.h> // Tracing support
55
56 // We don't want the inline versions of stdlib functions defined here
57
58 #ifdef CYGIMP_LIBC_STDLIB_INLINES
59 #undef CYGIMP_LIBC_STDLIB_INLINES
60 #endif
61
62 #include <stdlib.h> // Main header for stdlib functions
63 #include "clibincl/stdlibsupp.hxx" // Support for stdlib functions
64
65
66 // EXPORTED SYMBOLS
67
68 externC int
69 abs( int j ) CYGPRI_LIBC_WEAK_ALIAS("_abs");
70
71
72 // FUNCTIONS
73
74 int
75 _abs( int j )
76 {
77 int retval;
78
79 CYG_REPORT_FUNCNAMETYPE( "_abs", "returning %d" );
80
81 retval = (j<0) ? -j : j;
82
83 CYG_REPORT_RETVAL( retval );
84
85 return retval;
86 } // _abs()
87
88
89 #endif // ifdef CYGPKG_LIBC
90
91 // EOF abs.cxx