abs.inl

eCos操作系统源码

#ifndef CYGONCE_LIBC_STDLIB_ABS_INL
#define CYGONCE_LIBC_STDLIB_ABS_INL
/*===========================================================================
//
//      abs.inl
//
//      Inline implementations for the ISO standard utility functions
//      abs() and labs() defined in section 7.10 of the standard
//
//===========================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
//
// eCos is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 2 or (at your option) any later version.
//
// eCos is distributed in the hope that it will be useful, but WITHOUT 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 along
// with eCos; if not, write to the Free Software Foundation, Inc.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
//
// As a special exception, if other files instantiate templates or use macros
// or inline functions from this file, or you compile this file and link it
// with other works to produce a work based on this file, this file does not
// by itself cause the resulting work to be covered by the GNU General Public
// License. However the source code for this file must still be made available
// in accordance with section (3) of the GNU General Public License.
//
// This exception does not invalidate any other reasons why a work based on
// this file might be covered by the GNU General Public License.
//
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
// at http://sources.redhat.com/ecos/ecos-license/
// -------------------------------------------
//####ECOSGPLCOPYRIGHTEND####
//===========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):    jlarmour
// Contributors: 
// Date:         2000-04-28
// Purpose:     
// Description: 
// Usage:        Do not include this file directly - include <stdlib.h> instead
//
//####DESCRIPTIONEND####
//
//=========================================================================*/

/* INCLUDES */

#include <cyg/infra/cyg_trac.h>    /* Tracing support */

/* FUNCTION PROTOTYPES */

#ifdef __cplusplus
extern "C" {
#endif

extern int
abs( int /* val */ ) __attribute__((__const__));

extern long
labs( long /* val */ ) __attribute__((__const__));

#ifdef __cplusplus
} /* extern "C" */
#endif 

/* INLINE FUNCTIONS */

#ifndef CYGPRI_LIBC_STDLIB_ABS_INLINE
# define CYGPRI_LIBC_STDLIB_ABS_INLINE extern __inline__
#endif

CYGPRI_LIBC_STDLIB_ABS_INLINE int
abs( int __j )
{
    int __retval;

    CYG_REPORT_FUNCNAMETYPE( "abs", "returning %d" );
   
    __retval = (__j<0) ? -__j : __j;

    CYG_REPORT_RETVAL( __retval );

    return __retval;
} /* abs() */

CYGPRI_LIBC_STDLIB_ABS_INLINE long
labs( long __j )
{
    long __retval;

    CYG_REPORT_FUNCNAMETYPE( "abs", "returning %ld" );
   
    __retval = (__j<0) ? -__j : __j;

    CYG_REPORT_RETVAL( __retval );

    return __retval;
} /* labs() */


#endif /* CYGONCE_LIBC_STDLIB_ABS_INL multiple inclusion protection */

/* EOF abs.inl */