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|
//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2022 - 2023 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
//
//===----------------------------------------------------------------------===//
//
// RUN: %target-run-simple-swift(-parse-as-library)
// REQUIRES: executable_test
// REQUIRES: reflection
// UNSUPPORTED: use_os_stdlib
// END.
//
//===----------------------------------------------------------------------===//
import StdlibUnittest
@available(SwiftStdlib 5.8, *)
@main
final class StaticBigIntTests {
@available(SwiftStdlib 5.8, *)
static func main() {
let testCase = StaticBigIntTests()
let testSuite = TestSuite("StaticBigIntTests")
testSuite.test("BinaryRepresentation", testCase.testBinaryRepresentation)
testSuite.test("TextualRepresentation", testCase.testTextualRepresentation)
testSuite.test("PrefixPlusTypeInference", testCase.testPrefixPlusTypeInference)
testSuite.test("PrefixMinusTypeInference", testCase.testPrefixMinusTypeInference)
testSuite.test("WrapperNegativeValue", testCase.testWrapperNegativeValue)
testSuite.test("WrapperPositiveValue", testCase.testWrapperPositiveValue)
testSuite.test("WrapperFibonacciSequence", testCase.testWrapperFibonacciSequence)
runAllTests()
}
}
//===----------------------------------------------------------------------===//
// MARK: - Binary Representation
//===----------------------------------------------------------------------===//
@available(SwiftStdlib 5.8, *)
extension StaticBigIntTests {
@available(SwiftStdlib 5.8, *)
func testBinaryRepresentation() {
typealias Expected = (signum: Int, bitWidth: Int, _32bit: [UInt], _64bit: [UInt])
let m = UInt(bitPattern: Int.min)
let keyValuePairs: KeyValuePairs<StaticBigInt, Expected> = [
-0x80000000000000000000000000000002: (-1, 129, [~1, ~0, ~0, ~m, ~0], [~1, ~m, ~0]),
-0x80000000000000000000000000000001: (-1, 129, [~0, ~0, ~0, ~m, ~0], [~0, ~m, ~0]),
-0x80000000000000000000000000000000: (-1, 128, [ 0, 0, 0, m, ~0], [ 0, m, ~0]),
-0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF: (-1, 128, [ 1, 0, 0, m, ~0], [ 1, m, ~0]),
-0x4: (-1, 3, [~3, ~0, ~0, ~0, ~0], [~3, ~0, ~0]),
-0x3: (-1, 3, [~2, ~0, ~0, ~0, ~0], [~2, ~0, ~0]),
-0x2: (-1, 2, [~1, ~0, ~0, ~0, ~0], [~1, ~0, ~0]),
-0x1: (-1, 1, [~0, ~0, ~0, ~0, ~0], [~0, ~0, ~0]),
0x0: ( 0, 1, [ 0, 0, 0, 0, 0], [ 0, 0, 0]),
0x1: (+1, 2, [ 1, 0, 0, 0, 0], [ 1, 0, 0]),
0x2: (+1, 3, [ 2, 0, 0, 0, 0], [ 2, 0, 0]),
0x3: (+1, 3, [ 3, 0, 0, 0, 0], [ 3, 0, 0]),
0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE: (+1, 128, [~1, ~0, ~0, ~m, 0], [~1, ~m, 0]),
0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF: (+1, 128, [~0, ~0, ~0, ~m, 0], [~0, ~m, 0]),
0x80000000000000000000000000000000: (+1, 129, [ 0, 0, 0, m, 0], [ 0, m, 0]),
0x80000000000000000000000000000001: (+1, 129, [ 1, 0, 0, m, 0], [ 1, m, 0]),
]
for (actual, expected) in keyValuePairs {
expectEqual(expected.signum, actual.signum())
expectEqual(expected.bitWidth, actual.bitWidth)
#if _pointerBitWidth(_32)
expectEqual(expected._32bit[0], actual[0])
expectEqual(expected._32bit[1], actual[1])
expectEqual(expected._32bit[2], actual[2])
expectEqual(expected._32bit[3], actual[3])
expectEqual(expected._32bit[4], actual[4])
#elseif _pointerBitWidth(_64)
expectEqual(expected._64bit[0], actual[0])
expectEqual(expected._64bit[1], actual[1])
expectEqual(expected._64bit[2], actual[2])
#else
#error("Unimplemented")
#endif
}
}
}
//===----------------------------------------------------------------------===//
// MARK: - Textual Representation
//===----------------------------------------------------------------------===//
@available(SwiftStdlib 5.8, *)
extension StaticBigIntTests {
@available(SwiftStdlib 5.8, *)
func testTextualRepresentation() {
let keyValuePairs: KeyValuePairs<StaticBigInt, String> = [
-0x80000000000000000000000000000002: "-0x80000000000000000000000000000002",
-0x80000000000000000000000000000001: "-0x80000000000000000000000000000001",
-0x80000000000000000000000000000000: "-0x80000000000000000000000000000000",
-0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF: "-0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF",
-0x123456789ABCDE: "-0x123456789ABCDE",
-0x123456789ABCD: "-0x123456789ABCD",
-0x123456789ABC: "-0x123456789ABC",
-0x1000: "-0x1000",
-0x100: "-0x100",
-0x10: "-0x10",
-0x4: "-0x4",
-0x3: "-0x3",
-0x2: "-0x2",
-0x1: "-0x1",
0x0: "+0x0",
0x1: "+0x1",
0x2: "+0x2",
0x3: "+0x3",
0x10: "+0x10",
0x100: "+0x100",
0x1000: "+0x1000",
0x123456789ABC: "+0x123456789ABC",
0x123456789ABCD: "+0x123456789ABCD",
0x123456789ABCDE: "+0x123456789ABCDE",
0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE: "+0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE",
0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF: "+0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF",
0x80000000000000000000000000000000: "+0x80000000000000000000000000000000",
0x80000000000000000000000000000001: "+0x80000000000000000000000000000001",
]
for (actual, expected) in keyValuePairs {
expectEqual(expected, String(reflecting: actual))
}
}
}
//===----------------------------------------------------------------------===//
// MARK: - Type Inference
//===----------------------------------------------------------------------===//
@available(SwiftStdlib 5.8, *)
extension StaticBigIntTests {
func testPrefixPlusTypeInference() {
let a: Int = 7
// An earlier version of StaticBigInt contained a prefix + operation,
// which caused b to be inferred to have type StaticBigInt rather than
// Int:
let b = +1
// and then this would fail to typecheck, because there's no
// Int + StaticBigInt operation.
let c = a + b
}
func testPrefixMinusTypeInference() {
// This example shouldn't suffer from the same problem as above, because
// -1 is a literal, not a prefix operator followed by a literal.
// Nonetheless, let's test it.
let a: Int = 7
let b = -1
let c = a + b
}
}
//===----------------------------------------------------------------------===//
// MARK: - Wrapper Associated Type
//===----------------------------------------------------------------------===//
@available(SwiftStdlib 5.8, *)
extension StaticBigIntTests {
@available(SwiftStdlib 5.8, *)
struct Wrapper: ExpressibleByIntegerLiteral {
@available(SwiftStdlib 5.8, *)
let actual: StaticBigInt
@available(SwiftStdlib 5.8, *)
init(integerLiteral actual: StaticBigInt) {
self.actual = actual
}
}
@available(SwiftStdlib 5.8, *)
func testWrapperNegativeValue() {
let negative = Wrapper(-0x00112233_44556677_8899AABB_CCDDEEFF)
expectEqual( -1, negative.actual.signum())
expectEqual(118, negative.actual.bitWidth)
#if _pointerBitWidth(_32)
expectEqual(0x33221101, negative.actual[0])
expectEqual(0x77665544, negative.actual[1])
expectEqual(0xBBAA9988, negative.actual[2])
expectEqual(0xFFEEDDCC, negative.actual[3])
expectEqual(0xFFFFFFFF, negative.actual[4])
expectEqual(0xFFFFFFFF, negative.actual[.max])
#elseif _pointerBitWidth(_64)
expectEqual(0x77665544_33221101, negative.actual[0])
expectEqual(0xFFEEDDCC_BBAA9988, negative.actual[1])
expectEqual(0xFFFFFFFF_FFFFFFFF, negative.actual[2])
expectEqual(0xFFFFFFFF_FFFFFFFF, negative.actual[.max])
#else
#error("Unimplemented")
#endif
}
@available(SwiftStdlib 5.8, *)
func testWrapperPositiveValue() {
let positive = Wrapper(0x00112233_44556677_8899AABB_CCDDEEFF)
expectEqual( +1, positive.actual.signum())
expectEqual(118, positive.actual.bitWidth)
#if _pointerBitWidth(_32)
expectEqual(0xCCDDEEFF, positive.actual[0])
expectEqual(0x8899AABB, positive.actual[1])
expectEqual(0x44556677, positive.actual[2])
expectEqual(0x00112233, positive.actual[3])
expectEqual(0x00000000, positive.actual[4])
expectEqual(0x00000000, positive.actual[.max])
#elseif _pointerBitWidth(_64)
expectEqual(0x8899AABB_CCDDEEFF, positive.actual[0])
expectEqual(0x00112233_44556677, positive.actual[1])
expectEqual(0x00000000_00000000, positive.actual[2])
expectEqual(0x00000000_00000000, positive.actual[.max])
#else
#error("Unimplemented")
#endif
}
@available(SwiftStdlib 5.8, *)
func testWrapperFibonacciSequence() {
#if _pointerBitWidth(_32)
let wordCount = 48
let fibonacciSequence = Wrapper(
0xB11924E1_6D73E55F_43A53F82_29CEA5DD_19D699A5_0FF80C38_09DE8D6D_06197ECB_03C50EA2_02547029_01709E79_00E3D1B0_008CCCC9_005704E7_0035C7E2_00213D05_00148ADD_000CB228_0007D8B5_0004D973_0002FF42_0001DA31_00012511_0000B520_00006FF1_0000452F_00002AC2_00001A6D_00001055_00000A18_0000063D_000003DB_00000262_00000179_000000E9_00000090_00000059_00000037_00000022_00000015_0000000D_00000008_00000005_00000003_00000002_00000001_00000001_00000000
)
#elseif _pointerBitWidth(_64)
let wordCount = 94
let fibonacciSequence = Wrapper(
0xA94FAD42221F2702_68A3DD8E61ECCFBD_40ABCFB3C0325745_27F80DDAA1BA7878_18B3C1D91E77DECD_0F444C01834299AB_096F75D79B354522_05D4D629E80D5489_039A9FADB327F099_023A367C34E563F0_016069317E428CA9_00D9CD4AB6A2D747_00869BE6C79FB562_00533163EF0321E5_00336A82D89C937D_001FC6E116668E68_0013A3A1C2360515_000C233F54308953_000780626E057BC2_0004A2DCE62B0D91_0002DD8587DA6E31_0001C5575E509F60_0001182E2989CED1_0000AD2934C6D08F_00006B04F4C2FE42_000042244003D24D_000028E0B4BF2BF5_000019438B44A658_00000F9D297A859D_000009A661CA20BB_000005F6C7B064E2_000003AF9A19BBD9_000002472D96A909_000001686C8312D0_000000DEC1139639_00000089AB6F7C97_0000005515A419A2_0000003495CB62F5_000000207FD8B6AD_0000001415F2AC48_0000000C69E60A65_00000007AC0CA1E3_00000004BDD96882_00000002EE333961_00000001CFA62F21_000000011E8D0A40_00000000B11924E1_000000006D73E55F_0000000043A53F82_0000000029CEA5DD_0000000019D699A5_000000000FF80C38_0000000009DE8D6D_0000000006197ECB_0000000003C50EA2_0000000002547029_0000000001709E79_0000000000E3D1B0_00000000008CCCC9_00000000005704E7_000000000035C7E2_0000000000213D05_0000000000148ADD_00000000000CB228_000000000007D8B5_000000000004D973_000000000002FF42_000000000001DA31_0000000000012511_000000000000B520_0000000000006FF1_000000000000452F_0000000000002AC2_0000000000001A6D_0000000000001055_0000000000000A18_000000000000063D_00000000000003DB_0000000000000262_0000000000000179_00000000000000E9_0000000000000090_0000000000000059_0000000000000037_0000000000000022_0000000000000015_000000000000000D_0000000000000008_0000000000000005_0000000000000003_0000000000000002_0000000000000001_0000000000000001_0000000000000000
)
#else
#error("Unimplemented")
#endif
expectEqual(
1 + (wordCount * UInt.bitWidth),
fibonacciSequence.actual.bitWidth
)
for wordIndex in 2..<wordCount {
expectEqual(
fibonacciSequence.actual[wordIndex],
fibonacciSequence.actual[wordIndex - 1] +
fibonacciSequence.actual[wordIndex - 2]
)
}
}
}
|
