.binaryBitPattern

💾 程式

💾 程式：replit

extension BinaryFloatingPoint {

    /// `num.signBitPattern`
    public var signBitPattern: String {
        return sign == .plus ? "0" : "1"
    }

    /// `num.binaryBitPattern`
    public var binaryBitPattern: String {
        return signBitPattern 
            + String(exponentBitPattern, radix: 2)
            + String(significandBitPattern, radix: 2)
    }
}

💈範例：

let x = Double.pi
x.binaryBitPattern
//  ╭── exp ──╮╭────────────────── significand ───────────────────╮
// 0100000000001001001000011111101101010100010001000010110100011000
// ↳ sign

📘 手冊

• Swift ⟩

  • String ⟩ String(_:radix:uppercase:) ⭐️ 將整數用二進位、八進位、十六進位表示。

  • Numbers and Basic Values ⟩ Numeric Protocols ⟩ BinaryFloatingPoint

📗 參考

• Jesse ⟩ Exploring Swift’s numeric types and protocols

👥 相關

• BinaryFloatingPoint extension.

🗣 討論

• How to convert a decimal number to binary in Swift?