rangeUntil member operator in builtins #KT-52933

libraries/stdlib/wasm/builtins/kotlin/Char.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2019 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Copyright 2010-2022 JetBrains s.r.o. and Kotlin Programming Language contributors.
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
@@ -63,6 +63,16 @@ public class Char private constructor(public val value: Char) : Comparable<Char>
     public operator fun rangeTo(other: Char): CharRange =
         CharRange(this, other)
 
+    /**
+     * Creates a range from this value up to but excluding the specified [other] value.
+     *
+     * If the [other] value is less than or equal to `this` value, then the returned range is empty.
+     */
+    @SinceKotlin("1.7")
+    @ExperimentalStdlibApi
+    public operator fun rangeUntil(other: Char): CharRange =
+        this until other
+
     /** Returns the value of this character as a `Byte`. */
     public inline fun toByte(): Byte =
         this.toInt().toByte()