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      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 2003 Sun Microsystems, Inc.  All rights reserved.
     24  * Use is subject to license terms.
     25  */
     26 
     27 #ifndef _XPG6_H
     28 #define	_XPG6_H
     29 
     30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     31 
     32 /*
     33  * This is an OS/Net Consolidation PRIVATE header.
     34  */
     35 
     36 /*
     37  * __xpg6 (C99/SUSv3) was first introduced in Solaris 10.
     38  *
     39  * C99/SUSv3 behavior control bits for __xpg6 variable defined
     40  * in port/gen/xpg6.c.
     41  * Use these with extreme care.
     42  *
     43  * Please follow these basic rules for using these bits and
     44  * don't convolute their meaning.
     45  *
     46  * The basic idea here is the upper 16 bits (default_off)
     47  * enable/disable existing Solaris behaviors that conflict with
     48  * the C99 or SUSv3 standards.  When these bits are on you
     49  * are restoring an existing Solaris behavior and no longer
     50  * in strict C99/SUSv3 conformance mode.
     51  *
     52  * The lower 16 bits (default_on) are C99/SUSv3 behaviors
     53  * which are strictly conforming behaviors as far as the
     54  * C99/SUSv3 standards are concerned.  When these bits are on
     55  * you are in C99/SUSv3 conforming mode.  When these bits are off
     56  * you have turned off C99/SUSv3 conforming mode and are using
     57  * previous Solaris behavior.
     58  *
     59  * _C99SUSv3_mode_ON and _C99SUSv3_mode_OFF are two meta-definitions
     60  * which are the most likely modes to run Solaris in.
     61  * However, this frame work allows for other possible behaviors.
     62  *
     63  * The default mode of libc is _C99SUSv3_mode_OFF.
     64  * A C99/SUSv3 conforming application should be compiled
     65  * with the XPG6 standards conforming C compiler utility (c99) which
     66  * adds an object file that contains an alternate definition
     67  * for __xpg6 (_C99SUSv3_mode_ON) thus enabling C99/SUSv3 standards
     68  * conforming mode.
     69  */
     70 
     71 #define	_C99SUSv3_default_off_reserved15	0x80000000
     72 #define	_C99SUSv3_default_off_reserved14	0x40000000
     73 #define	_C99SUSv3_default_off_reserved13	0x20000000
     74 #define	_C99SUSv3_default_off_reserved12	0x10000000
     75 #define	_C99SUSv3_default_off_reserved11	0x08000000
     76 #define	_C99SUSv3_default_off_reserved10	0x04000000
     77 #define	_C99SUSv3_default_off_reserved09	0x02000000
     78 #define	_C99SUSv3_default_off_reserved08	0x01000000
     79 #define	_C99SUSv3_default_off_reserved07	0x00800000
     80 #define	_C99SUSv3_default_off_reserved06	0x00400000
     81 #define	_C99SUSv3_default_off_reserved05	0x00200000
     82 #define	_C99SUSv3_default_off_reserved04	0x00100000
     83 #define	_C99SUSv3_default_off_reserved03	0x00080000
     84 #define	_C99SUSv3_default_off_reserved02	0x00040000
     85 #define	_C99SUSv3_default_off_reserved01	0x00020000
     86 /*
     87  * If set then %f & %F print Inf/NaN;
     88  *	  else print inf/nan & INF/NAN, respectively.
     89  */
     90 #define	_C99SUSv3_mixed_case_Inf_and_NaN	0x00010000
     91 
     92 #define	_C99SUSv3_default_on_reserved15		0x00008000
     93 #define	_C99SUSv3_default_on_reserved14		0x00004000
     94 #define	_C99SUSv3_default_on_reserved13		0x00002000
     95 #define	_C99SUSv3_default_on_reserved12		0x00001000
     96 #define	_C99SUSv3_default_on_reserved11		0x00000800
     97 /*
     98  * If set, math library entry points present in SUSv2 deal with exceptional
     99  * cases as per SUSv3 spec where math_errhandling is set to MATH_ERREXCEPT;
    100  * otherwise they behave as per SUSv2 spec.
    101  */
    102 #define	_C99SUSv3_math_errexcept		0x00000400
    103 /*
    104  * If set, when filename is a null pointer, freopen(NULL, mode, ...) will
    105  * attempt to change the mode of the stream to that specified by mode, as if
    106  * the name of the file currently associated with the stream had been used;
    107  * otherwise freopen(NULL, ...) will fail.
    108  */
    109 #define	_C99SUSv3_freopen_NULL_filename		0x00000200
    110 /*
    111  * If set,
    112  *	- strfmon() uses int_* members for %i
    113  *	- strfmon() handles the case n_sep_by_space == 2 as SUSv3 expects,
    114  *	which is different from it does in non SUSv3 mode.
    115  */
    116 #define	_C99SUSv3_strfmon			0x00000100
    117 /*
    118  * If set, pow(+/-1,+/-Inf) & pow(1,NaN) return 1; otherwise NaN is returned.
    119  * Analogous comment applies to powf and powl.
    120  */
    121 #define	_C99SUSv3_pow_treats_Inf_as_an_even_int	0x00000080
    122 /*
    123  * If set, logb(subnormal) returns (double) ilogb(subnormal); otherwise
    124  * logb(subnormal) returns logb(DBL_MIN).  Analogous comment applies to
    125  * logbf and logbl.
    126  */
    127 #define	_C99SUSv3_logb_subnormal_is_like_ilogb	0x00000040
    128 /*
    129  * If set, ilogb(0/+Inf/-Inf/NaN) raises FE_INVALID as per SUSv3; otherwise
    130  * no exception is raised.  Analogous comment applies to ilogbf and ilogbl.
    131  */
    132 #define	_C99SUSv3_ilogb_0InfNaN_raises_invalid	0x00000020
    133 /*
    134  * If set, the range for strptime() and getdate() %S specifier is [0-60]
    135  * seconds; otherwise the range is [0-61] seconds.
    136  */
    137 #define	_C99SUSv3_strptime_seconds		0x00000010
    138 
    139 #define	_C99SUSv3_default_on_reserved03		0x00000008
    140 
    141 /*
    142  * Use SUSv3 version numbers for _SC_VERSION and _SC_XOPEN_XCU_VERSION.
    143  */
    144 #define	_C99SUSv3_XPG6_sysconf_version		0x00000004
    145 /*
    146  * Include /usr/xpg6/bin in PATH.
    147  */
    148 #define	_C99SUSv3_XPG6_pathing			0x00000002
    149 /*
    150  * If set strtod() and wcstod() recognize hex floating point constants.
    151  */
    152 #define	_C99SUSv3_recognize_hexfp		0x00000001
    153 
    154 /*
    155  * __xpg6 = _C99SUSv3_mode_ON   enables C99/SUSv3 standards conformance mode.
    156  * __xpg6 = _C99SUSv3_mode_OFF disables C99/SUSv3 standards conformance mode.
    157  */
    158 
    159 #define	_C99SUSv3_mode_ON	0x0000FFFF
    160 #define	_C99SUSv3_mode_OFF	0xFFFF0000
    161 
    162 #if !defined(_ASM)
    163 extern unsigned int __xpg6;
    164 #endif
    165 
    166 #endif /* _XPG6_H */
    167