OpenSolaris_b135/lib/libc/inc/xpg6.h
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
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* CDDL HEADER END
*/
/*
* Copyright 2003 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _XPG6_H
#define _XPG6_H
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* This is an OS/Net Consolidation PRIVATE header.
*/
/*
* __xpg6 (C99/SUSv3) was first introduced in Solaris 10.
*
* C99/SUSv3 behavior control bits for __xpg6 variable defined
* in port/gen/xpg6.c.
* Use these with extreme care.
*
* Please follow these basic rules for using these bits and
* don't convolute their meaning.
*
* The basic idea here is the upper 16 bits (default_off)
* enable/disable existing Solaris behaviors that conflict with
* the C99 or SUSv3 standards. When these bits are on you
* are restoring an existing Solaris behavior and no longer
* in strict C99/SUSv3 conformance mode.
*
* The lower 16 bits (default_on) are C99/SUSv3 behaviors
* which are strictly conforming behaviors as far as the
* C99/SUSv3 standards are concerned. When these bits are on
* you are in C99/SUSv3 conforming mode. When these bits are off
* you have turned off C99/SUSv3 conforming mode and are using
* previous Solaris behavior.
*
* _C99SUSv3_mode_ON and _C99SUSv3_mode_OFF are two meta-definitions
* which are the most likely modes to run Solaris in.
* However, this frame work allows for other possible behaviors.
*
* The default mode of libc is _C99SUSv3_mode_OFF.
* A C99/SUSv3 conforming application should be compiled
* with the XPG6 standards conforming C compiler utility (c99) which
* adds an object file that contains an alternate definition
* for __xpg6 (_C99SUSv3_mode_ON) thus enabling C99/SUSv3 standards
* conforming mode.
*/
#define _C99SUSv3_default_off_reserved15 0x80000000
#define _C99SUSv3_default_off_reserved14 0x40000000
#define _C99SUSv3_default_off_reserved13 0x20000000
#define _C99SUSv3_default_off_reserved12 0x10000000
#define _C99SUSv3_default_off_reserved11 0x08000000
#define _C99SUSv3_default_off_reserved10 0x04000000
#define _C99SUSv3_default_off_reserved09 0x02000000
#define _C99SUSv3_default_off_reserved08 0x01000000
#define _C99SUSv3_default_off_reserved07 0x00800000
#define _C99SUSv3_default_off_reserved06 0x00400000
#define _C99SUSv3_default_off_reserved05 0x00200000
#define _C99SUSv3_default_off_reserved04 0x00100000
#define _C99SUSv3_default_off_reserved03 0x00080000
#define _C99SUSv3_default_off_reserved02 0x00040000
#define _C99SUSv3_default_off_reserved01 0x00020000
/*
* If set then %f & %F print Inf/NaN;
* else print inf/nan & INF/NAN, respectively.
*/
#define _C99SUSv3_mixed_case_Inf_and_NaN 0x00010000
#define _C99SUSv3_default_on_reserved15 0x00008000
#define _C99SUSv3_default_on_reserved14 0x00004000
#define _C99SUSv3_default_on_reserved13 0x00002000
#define _C99SUSv3_default_on_reserved12 0x00001000
#define _C99SUSv3_default_on_reserved11 0x00000800
/*
* If set, math library entry points present in SUSv2 deal with exceptional
* cases as per SUSv3 spec where math_errhandling is set to MATH_ERREXCEPT;
* otherwise they behave as per SUSv2 spec.
*/
#define _C99SUSv3_math_errexcept 0x00000400
/*
* If set, when filename is a null pointer, freopen(NULL, mode, ...) will
* attempt to change the mode of the stream to that specified by mode, as if
* the name of the file currently associated with the stream had been used;
* otherwise freopen(NULL, ...) will fail.
*/
#define _C99SUSv3_freopen_NULL_filename 0x00000200
/*
* If set,
* - strfmon() uses int_* members for %i
* - strfmon() handles the case n_sep_by_space == 2 as SUSv3 expects,
* which is different from it does in non SUSv3 mode.
*/
#define _C99SUSv3_strfmon 0x00000100
/*
* If set, pow(+/-1,+/-Inf) & pow(1,NaN) return 1; otherwise NaN is returned.
* Analogous comment applies to powf and powl.
*/
#define _C99SUSv3_pow_treats_Inf_as_an_even_int 0x00000080
/*
* If set, logb(subnormal) returns (double) ilogb(subnormal); otherwise
* logb(subnormal) returns logb(DBL_MIN). Analogous comment applies to
* logbf and logbl.
*/
#define _C99SUSv3_logb_subnormal_is_like_ilogb 0x00000040
/*
* If set, ilogb(0/+Inf/-Inf/NaN) raises FE_INVALID as per SUSv3; otherwise
* no exception is raised. Analogous comment applies to ilogbf and ilogbl.
*/
#define _C99SUSv3_ilogb_0InfNaN_raises_invalid 0x00000020
/*
* If set, the range for strptime() and getdate() %S specifier is [0-60]
* seconds; otherwise the range is [0-61] seconds.
*/
#define _C99SUSv3_strptime_seconds 0x00000010
#define _C99SUSv3_default_on_reserved03 0x00000008
/*
* Use SUSv3 version numbers for _SC_VERSION and _SC_XOPEN_XCU_VERSION.
*/
#define _C99SUSv3_XPG6_sysconf_version 0x00000004
/*
* Include /usr/xpg6/bin in PATH.
*/
#define _C99SUSv3_XPG6_pathing 0x00000002
/*
* If set strtod() and wcstod() recognize hex floating point constants.
*/
#define _C99SUSv3_recognize_hexfp 0x00000001
/*
* __xpg6 = _C99SUSv3_mode_ON enables C99/SUSv3 standards conformance mode.
* __xpg6 = _C99SUSv3_mode_OFF disables C99/SUSv3 standards conformance mode.
*/
#define _C99SUSv3_mode_ON 0x0000FFFF
#define _C99SUSv3_mode_OFF 0xFFFF0000
#if !defined(_ASM)
extern unsigned int __xpg6;
#endif
#endif /* _XPG6_H */