| // RUN: %target-build-swift %s -swift-version 4 -typecheck |
| |
| |
| func byteswap_n(_ a: UInt64) -> UInt64 { |
| return ((a & 0x00000000000000FF) &<< 56) | |
| ((a & 0x000000000000FF00) &<< 40) | |
| ((a & 0x0000000000FF0000) &<< 24) | |
| ((a & 0x00000000FF000000) &<< 8) | |
| ((a & 0x000000FF00000000) &>> 8) | |
| ((a & 0x0000FF0000000000) &>> 24) | |
| ((a & 0x00FF000000000000) &>> 40) | |
| ((a & 0xFF00000000000000) &>> 56) |
| } |
| |
| |
| // expression should not be too complex |
| func radar31845712(_ i: Int, _ buffer: [UInt8]) { |
| _ = UInt64(buffer[i]) |
| | (UInt64(buffer[i + 1]) &<< 8) |
| | (UInt64(buffer[i + 2]) &<< 16) |
| | (UInt64(buffer[i + 3]) &<< 24) |
| | (UInt64(buffer[i + 4]) &<< 32) |
| | (UInt64(buffer[i + 5]) &<< 40) |
| | (UInt64(buffer[i + 6]) &<< 48) |
| | (UInt64(buffer[i + 7]) &<< 56) |
| } |
| |
| // expression should not be too complex |
| func radar32149641() { |
| func from(bigEndian input: UInt32) -> UInt32 { |
| var val: UInt32 = input |
| return withUnsafePointer(to: &val) { (ptr: UnsafePointer<UInt32>) -> UInt32 in |
| return ptr.withMemoryRebound(to: UInt8.self, capacity: 4) { data in |
| return (UInt32(data[3]) &<< 0) | |
| (UInt32(data[2]) &<< 8) | |
| (UInt32(data[1]) &<< 16) | |
| (UInt32(data[0]) &<< 24) |
| } |
| } |
| } |
| } |
| |
| func homogeneousLookingShiftAndAMask(_ i64: Int64) { |
| _ = (i64 >> 8) & 0xFF |
| } |
| |
| func negativeShift(_ u8: UInt8) { |
| _ = (u8 << -1) |
| } |
| |
| func sr5176(description: String = "unambiguous Int32.init(bitPattern:)") { |
| _ = Int32(bitPattern: 0) // should compile without ambiguity |
| } |
| |
| func sr6634(x: UnsafeBufferPointer<UInt8>) -> Int { |
| return x.lazy.filter { $0 > 127 || $0 == 0 }.count // should be unambiguous |
| } |
| |
| // abs of an integer literal |
| func returnIntAbs() -> Int { |
| let x = abs(-8) |
| return x |
| } |