usr/src/lib/libc/port/gen/imaxabs.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #pragma ident   "%Z%%M% %I%     %E% SMI"
  28
  29 #include "lint.h"
  30 #include <sys/types.h>
  31 #include <stdlib.h>
  32
  33 /*
  34  * Added for SUSv3 standard
  35  */
  36
  37 intmax_t
  38 imaxabs(intmax_t arg)
  39 {
  40         return ((intmax_t)llabs((long long)arg));
  41 }
  42
  43 #if !defined(_LP64)
  44
  45 /*
  46  * 32-bit shadow function of imaxabs.
  47  * When using the c89 compiler the largest int is 32-bits hence
  48  * this function.  The pragma redefine_extname in inttypes.h selects
  49  * the proper routine at compile time for the user application.
  50  * NOTE: this function is only available in the 32-bit library.
  51  */
  52
  53 int32_t
  54 _imaxabs_c89(int32_t arg)
  55 {
  56         return (abs(arg));
  57 }
  58 #endif