xpg6.h revision 25c28e83beb90e7c80452a7c818c5e6f73a07dc8
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25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis * Use is subject to license terms.
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis * The bits in lib/libc/inc/xpg6.h fpgroup may use as per PSARC/2003/486.
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis * If set, math library entry points present in SUSv2 deal with exceptional
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis * cases as per SUSv3 spec where math_errhandling is set to MATH_ERREXCEPT;
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis * otherwise they behave as per SUSv2 spec.
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis#define _C99SUSv3_math_errexcept 0x00000400
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis * If set, pow(+/-1,+/-Inf) & pow(1,NaN) return 1; otherwise NaN is returned.
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis * Analogous comment applies to powf and powl.
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis#define _C99SUSv3_pow_treats_Inf_as_an_even_int 0x00000080
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis * If set, logb(subnormal) returns (double) ilogb(subnormal); otherwise
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis * logb(subnormal) returns logb(DBL_MIN). Analogous comment applies to
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis * logbf and logbl.
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis#define _C99SUSv3_logb_subnormal_is_like_ilogb 0x00000040
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis * If set, ilogb(0/+Inf/-Inf/NaN) raises FE_INVALID as per SUSv3; otherwise
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis * no exception is raised. Analogous comment applies to ilogbf and ilogbl.
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis#define _C99SUSv3_ilogb_0InfNaN_raises_invalid 0x00000020
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis * __xpg6 = _C99SUSv3_mode_OFF disables C99/SUSv3 standards conformance mode.
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtisextern unsigned int __xpg6;
25c28e83beb90e7c80452a7c818c5e6f73a07dc8Piotr Jasiukajtis#endif /* _XPG6_H */