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