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It is set of projects with micro tools for avoiding of routines coding

There is a newer version: 0.22.2

package dev.inmo.micro_utils.matrix

open class MatrixBuilder {
    private val mutMatrix: MutableList> = ArrayList()
    val matrix: Matrix
        get() = mutMatrix

    fun row(t: List) = mutMatrix.add(t)
    fun add(t: List) = mutMatrix.add(t)
    operator fun List.unaryPlus() = row(this)
    operator fun plus(t: List) = add(t)
    operator fun T.unaryPlus() = add(listOf(this))
}

fun  MatrixBuilder.row(block: RowBuilder.() -> Unit) = +RowBuilder().also(block).row
fun  MatrixBuilder.row(vararg elements: T) = +elements.toList()