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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
@_exported import Darwin // Clang module
public let MAP_FAILED: UnsafeMutableRawPointer! = UnsafeMutableRawPointer(bitPattern: -1)
// Constants defined by <math.h>
@available(swift, deprecated: 3.0, message: "Please use 'Double.pi' or '.pi' to get the value of correct type and avoid casting.")
public let M_PI = Double.pi
@available(swift, deprecated: 3.0, message: "Please use 'Double.pi / 2' or '.pi / 2' to get the value of correct type and avoid casting.")
public let M_PI_2 = Double.pi / 2
@available(swift, deprecated: 3.0, message: "Please use 'Double.pi / 4' or '.pi / 4' to get the value of correct type and avoid casting.")
public let M_PI_4 = Double.pi / 4
@available(swift, deprecated: 3.0, message: "Please use '2.squareRoot()'.")
public let M_SQRT2 = 2.squareRoot()
@available(swift, deprecated: 3.0, message: "Please use '0.5.squareRoot()'.")
public let M_SQRT1_2 = 0.5.squareRoot()
// Constants defined by <float.h>
@available(swift, deprecated: 3.0, message: "Please use 'T.radix' to get the radix of a FloatingPoint type 'T'.")
public let FLT_RADIX = Double.radix
%for type, prefix in [('Float', 'FLT'), ('Double', 'DBL'), ('Float80', 'LDBL')]:
% if type == "Float80":
#if arch(i386) || arch(x86_64)
% end
// Where does the 1 come from? C counts the usually-implicit leading
// significand bit, but Swift does not. Neither is really right or wrong.
@available(swift, deprecated: 3.0, message: "Please use '${type}.significandBitCount + 1'.")
public let ${prefix}_MANT_DIG = ${type}.significandBitCount + 1
// Where does the 1 come from? C models floating-point numbers as having a
// significand in [0.5, 1), but Swift (following IEEE 754) considers the
// significand to be in [1, 2). This rationale applies to ${prefix}_MIN_EXP
// as well.
@available(swift, deprecated: 3.0, message: "Please use '${type}.greatestFiniteMagnitude.exponent + 1'.")
public let ${prefix}_MAX_EXP = ${type}.greatestFiniteMagnitude.exponent + 1
@available(swift, deprecated: 3.0, message: "Please use '${type}.leastNormalMagnitude.exponent + 1'.")
public let ${prefix}_MIN_EXP = ${type}.leastNormalMagnitude.exponent + 1
@available(swift, deprecated: 3.0, message: "Please use '${type}.greatestFiniteMagnitude' or '.greatestFiniteMagnitude'.")
public let ${prefix}_MAX = ${type}.greatestFiniteMagnitude
@available(swift, deprecated: 3.0, message: "Please use '${type}.ulpOfOne' or '.ulpOfOne'.")
public let ${prefix}_EPSILON = ${type}.ulpOfOne
@available(swift, deprecated: 3.0, message: "Please use '${type}.leastNormalMagnitude' or '.leastNormalMagnitude'.")
public let ${prefix}_MIN = ${type}.leastNormalMagnitude
@available(swift, deprecated: 3.0, message: "Please use '${type}.leastNonzeroMagnitude' or '.leastNonzeroMagnitude'.")
public let ${prefix}_TRUE_MIN = ${type}.leastNonzeroMagnitude
% if type == "Float80":
#endif
% end
%end
// Macros defined in bsd/sys/proc.h that do not import into Swift.
extension extern_proc {
// #define p_starttime p_un.__p_starttime
@_transparent
public var p_starttime: timeval {
get { return self.p_un.__p_starttime }
set { self.p_un.__p_starttime = newValue }
}
}
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