From de3c2a1b5ad902c1b6bba70a4983b033ae822924 Mon Sep 17 00:00:00 2001
From: Alexander Nozik <altavir@gmail.com>
Date: Sun, 20 Dec 2020 14:18:12 +0300
Subject: [PATCH] Add curring and update kotlin

---
 .../kscience/kmath/operations/Algebra.kt      | 28 +++++++++++++++++++
 settings.gradle.kts                           |  4 +--
 2 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/kmath-core/src/commonMain/kotlin/kscience/kmath/operations/Algebra.kt b/kmath-core/src/commonMain/kotlin/kscience/kmath/operations/Algebra.kt
index 12a45615a..ed10901df 100644
--- a/kmath-core/src/commonMain/kotlin/kscience/kmath/operations/Algebra.kt
+++ b/kmath-core/src/commonMain/kotlin/kscience/kmath/operations/Algebra.kt
@@ -22,10 +22,22 @@ public interface Algebra<T> {
      */
     public fun unaryOperation(operation: String, arg: T): T
 
+    /**
+     * Currying version of [unaryOperation]
+     */
+    public fun unaryOperationFunction(operation: String): (T) -> T = { unaryOperation(operation, it) }
+
     /**
      * Dynamic call of binary operation [operation] on [left] and [right]
      */
     public fun binaryOperation(operation: String, left: T, right: T): T
+
+    /**
+     * Curring version of [binaryOperation]
+     */
+    public fun binaryOperationFunction(operation: String): (left: T, right: T) -> T = { left, right ->
+        binaryOperation(operation, left, right)
+    }
 }
 
 /**
@@ -45,11 +57,27 @@ public interface NumericAlgebra<T> : Algebra<T> {
     public fun leftSideNumberOperation(operation: String, left: Number, right: T): T =
         binaryOperation(operation, number(left), right)
 
+    /**
+     * Curring version of [leftSideNumberOperation]
+     */
+    public fun leftSideNumberOperationFunction(operation: String): (left: Number, right: T) -> T =
+        { left: Number, right: T ->
+            leftSideNumberOperation(operation, left, right)
+        }
+
     /**
      * Dynamic call of binary operation [operation] on [left] and [right] where right element is [Number].
      */
     public fun rightSideNumberOperation(operation: String, left: T, right: Number): T =
         leftSideNumberOperation(operation, right, left)
+
+    /**
+     * Curring version of [rightSideNumberOperation]
+     */
+    public fun rightSideNumberOperationFunction(operation: String): (left: T, right: Number) -> T =
+        { left: T, right: Number ->
+            rightSideNumberOperation(operation, left, right)
+        }
 }
 
 /**
diff --git a/settings.gradle.kts b/settings.gradle.kts
index 10e4d9577..da33fea59 100644
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -8,8 +8,8 @@ pluginManagement {
         maven("https://dl.bintray.com/kotlin/kotlinx")
     }
 
-    val toolsVersion = "0.7.0"
-    val kotlinVersion = "1.4.20"
+    val toolsVersion = "0.7.1"
+    val kotlinVersion = "1.4.21"
 
     plugins {
         id("kotlinx.benchmark") version "0.2.0-dev-20"