forked from kscience/kmath
Add decimal wrapper
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@ -0,0 +1,28 @@
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package scientifik.kmath.bignum
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import com.ionspin.kotlin.bignum.decimal.BigDecimal
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import com.ionspin.kotlin.bignum.decimal.DecimalMode
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import scientifik.kmath.operations.Field
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abstract class BigDecimalFieldBase internal constructor(val mode: DecimalMode = DecimalMode.DEFAULT) :
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Field<BigDecimal> {
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override val zero: BigDecimal
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get() = BigDecimal.ZERO
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override val one: BigDecimal
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get() = BigDecimal.ONE
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override fun number(value: Number): BigDecimal = BigDecimal.fromDouble(value.toDouble(), mode)
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override fun add(a: BigDecimal, b: BigDecimal): BigDecimal = a.add(b, mode)
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override fun multiply(a: BigDecimal, k: Number): BigDecimal = a.times(number(k))
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override fun multiply(a: BigDecimal, b: BigDecimal): BigDecimal = a.times(b)
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override fun divide(a: BigDecimal, b: BigDecimal): BigDecimal = a.divide(b)
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override fun BigDecimal.times(k: Number): BigDecimal = times(number(k))
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override fun BigDecimal.plus(b: Number): BigDecimal = plus(number(b))
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override fun BigDecimal.minus(b: Number): BigDecimal = minus(number(b))
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override fun BigDecimal.div(k: Number): BigDecimal = div(number(k))
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}
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class BigDecimalField(mode: DecimalMode = DecimalMode.DEFAULT) : BigDecimalFieldBase(mode) {
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companion object : BigDecimalFieldBase()
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}
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@ -12,10 +12,10 @@ object BigIntegerRing : Ring<BigInteger> {
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override fun number(value: Number): BigInteger = BigInteger.fromLong(value.toLong())
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override fun add(a: BigInteger, b: BigInteger): BigInteger = a + b
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override fun multiply(a: BigInteger, k: Number): BigInteger = a * (number(k))
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override fun multiply(a: BigInteger, k: Number): BigInteger = a * k.toLong()
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override fun multiply(a: BigInteger, b: BigInteger): BigInteger = a * b
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override fun BigInteger.plus(b: Number): BigInteger = plus(number(b))
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override fun BigInteger.minus(b: Number): BigInteger = minus(number(b))
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override fun BigInteger.div(k: Number): BigInteger = divide(number(k))
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override fun BigInteger.times(k: Number): BigInteger = multiply(number(k))
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override fun BigInteger.plus(b: Number): BigInteger = plus(b.toLong())
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override fun BigInteger.minus(b: Number): BigInteger = minus(b.toLong())
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override fun BigInteger.div(k: Number): BigInteger = div(k.toLong())
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override fun BigInteger.times(k: Number): BigInteger = times(k.toLong())
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}
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