minLength

import kotlin.test.*

fun main(args: Array<String>) {
//sampleStart
// By default, minLength is 1 and removeLeadingZeros is false.
println(0x3a.toHexString()) // 0000003a

// Specifying a minLength shorter than the hex representation with removeLeadingZeros set to false.
println(0x3a.toHexString(HexFormat { number.minLength = 4 })) // 0000003a

// Specifying a minLength shorter than the hex representation with removeLeadingZeros set to true.
val shorterLengthFormat = HexFormat {
    number.removeLeadingZeros = true
    number.minLength = 4
}
println(0x3a.toHexString(shorterLengthFormat)) // 003a
println(0xff80ed.toHexString(shorterLengthFormat)) // ff80ed

// Specifying a minLength longer than the hex representation.
// removeLeadingZeros is ignored in this case.
val longerLengthFormat = HexFormat {
    number.removeLeadingZeros = true
    number.minLength = 12
}
println(0x3a.toHexString(longerLengthFormat)) // 00000000003a

// When parsing, minLength is ignored.
println("3a".hexToInt(longerLengthFormat)) // 58

// The number of hex digits can be greater than what can fit into the type.
println("00000000003a".hexToInt()) // 58
println("0000ffffffff".hexToInt()) // -1
// But excess leading digits must be zeros.
// "000100000000".hexToInt() // will fail with IllegalArgumentException
//sampleEnd
}