usr/src/uts/common/sys/int_const.h

   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, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
  24  *
  25  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
  26  * Use is subject to license terms.
  27  */
  28
  29 #ifndef _SYS_INT_CONST_H
  30 #define _SYS_INT_CONST_H
  31
  32 /*
  33  * This file, <sys/int_const.h>, is part of the Sun Microsystems implementation
  34  * of <inttypes.h> as proposed in the ISO/JTC1/SC22/WG14 C committee's working
  35  * draft for the revision of the current ISO C standard, ISO/IEC 9899:1990
  36  * Programming language - C.
  37  *
  38  * Programs/Modules should not directly include this file.  Access to the
  39  * types defined in this file should be through the inclusion of one of the
  40  * following files:
  41  *
  42  *      <sys/inttypes.h>        Provides the Kernel and Driver appropriate
  43  *                              components of <inttypes.h>.
  44  *
  45  *      <inttypes.h>            For use by applications.
  46  *
  47  * See these files for more details.
  48  *
  49  * Use at your own risk.  This file will track the evolution of the revision
  50  * of the current ISO C standard.  As of February 1996, the committee is
  51  * squarely behind the fixed sized types.
  52  */
  53
  54 #include <sys/feature_tests.h>
  55
  56 #ifdef __cplusplus
  57 extern "C" {
  58 #endif
  59
  60 /*
  61  * Constants
  62  *
  63  * The following macros create constants of the types defined in
  64  * <sys/int_types.h>. The intent is that:
  65  *      Constants defined using these macros have a specific size and
  66  *      signedness. The suffix used for int64_t and uint64_t (ll and ull)
  67  *      are for examples only. Implementations are permitted to use other
  68  *      suffixes.
  69  *
  70  * The "CSTYLED" comments are flags to an internal code style analysis tool
  71  * telling it to silently accept the line which follows.  This internal
  72  * standard requires a space between arguments, but the historical,
  73  * non-ANSI-C ``method'' of concatenation can't tolerate those spaces.
  74  */
  75 /* CSTYLED */
  76 #define __CONCAT__(A,B) A ## B
  77
  78 #define INT8_C(c)       (c)
  79 #define INT16_C(c)      (c)
  80 #define INT32_C(c)      (c)
  81 #ifdef  _LP64
  82 /* CSTYLED */
  83 #define INT64_C(c)      __CONCAT__(c,l)
  84 #else   /* _ILP32 */
  85 #if defined(_LONGLONG_TYPE)
  86 /* CSTYLED */
  87 #define INT64_C(c)      __CONCAT__(c,ll)
  88 #endif
  89 #endif
  90
  91 /* CSTYLED */
  92 #define UINT8_C(c)      __CONCAT__(c,u)
  93 /* CSTYLED */
  94 #define UINT16_C(c)     __CONCAT__(c,u)
  95 /* CSTYLED */
  96 #define UINT32_C(c)     __CONCAT__(c,u)
  97 #ifdef  _LP64
  98 /* CSTYLED */
  99 #define UINT64_C(c)     __CONCAT__(c,ul)
 100 #else   /* _ILP32 */
 101 #if defined(_LONGLONG_TYPE)
 102 /* CSTYLED */
 103 #define UINT64_C(c)     __CONCAT__(c,ull)
 104 #endif
 105 #endif
 106
 107 #ifdef  _LP64
 108 /* CSTYLED */
 109 #define INTMAX_C(c)     __CONCAT__(c,l)
 110 /* CSTYLED */
 111 #define UINTMAX_C(c)    __CONCAT__(c,ul)
 112 #else   /* _ILP32 */
 113 #if defined(_LONGLONG_TYPE)
 114 /* CSTYLED */
 115 #define INTMAX_C(c)     __CONCAT__(c,ll)
 116 /* CSTYLED */
 117 #define UINTMAX_C(c)    __CONCAT__(c,ull)
 118 #else
 119 #define INTMAX_C(c)     (c)
 120 #define UINTMAX_C(c)    (c)
 121 #endif
 122 #endif
 123
 124 #ifdef __cplusplus
 125 }
 126 #endif
 127
 128 #endif /* _SYS_INT_CONST_H */