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40 lines
1.3 KiB
Swift
40 lines
1.3 KiB
Swift
//===----------------------------------------------------------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2015 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See http://swift.org/LICENSE.txt for license information
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// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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import SwiftShims
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/// Returns 1 if the running OS version is greater than or equal to
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/// major.minor.patchVersion and 0 otherwise.
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/// This is a magic entrypoint known to the compiler. It is called in
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/// generated code for API availability checking.
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public func _stdlib_isOSVersionAtLeast(
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major: Builtin.Word,
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minor: Builtin.Word,
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patch: Builtin.Word
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) -> Builtin.Int1 {
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#if os(OSX) || os(iOS)
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let version = _swift_stdlib_operatingSystemVersion()
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let result =
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(version.majorVersion >= Int(major)) &&
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(version.minorVersion >= Int(minor)) &&
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(version.patchVersion >= Int(patch))
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return result.value
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#else
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// FIXME: As yet, there is no obvious versioning standard for platforms other
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// than Darwin-based OS', so we just assume false for now.
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// rdar://problem/18881232
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return false.value
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#endif
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}
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