From 34e17e82f4784d3f57774466c78f5f96dc052abc Mon Sep 17 00:00:00 2001
From: Vasily Levchenko <vasily.levchenko@jetbrains.com>
Date: Tue, 7 Mar 2017 15:01:48 +0300
Subject: [PATCH] STDLIB: bunch of ranges functions

---
 .../src/main/kotlin/kotlin/ranges/_Ranges.kt  | 145 ++++++++++++++++++
 1 file changed, 145 insertions(+)
 create mode 100644 runtime/src/main/kotlin/kotlin/ranges/_Ranges.kt

diff --git a/runtime/src/main/kotlin/kotlin/ranges/_Ranges.kt b/runtime/src/main/kotlin/kotlin/ranges/_Ranges.kt
new file mode 100644
index 00000000000..cdf5221c91b
--- /dev/null
+++ b/runtime/src/main/kotlin/kotlin/ranges/_Ranges.kt
@@ -0,0 +1,145 @@
+package kotlin.ranges
+
+/**
+ * Returns a range from this value up to but excluding the specified [to] value.
+ */
+public infix fun Int.until(to: Byte): IntRange {
+    return this .. (to.toInt() - 1).toInt()
+}
+
+/**
+ * Returns a range from this value up to but excluding the specified [to] value.
+ */
+public infix fun Long.until(to: Byte): LongRange {
+    return this .. (to.toLong() - 1).toLong()
+}
+
+/**
+ * Returns a range from this value up to but excluding the specified [to] value.
+ */
+public infix fun Byte.until(to: Byte): IntRange {
+    return this.toInt() .. (to.toInt() - 1).toInt()
+}
+
+/**
+ * Returns a range from this value up to but excluding the specified [to] value.
+ */
+public infix fun Short.until(to: Byte): IntRange {
+    return this.toInt() .. (to.toInt() - 1).toInt()
+}
+
+/**
+ * Returns a range from this value up to but excluding the specified [to] value.
+ *
+ * If the [to] value is less than or equal to ['\u0000'] the returned range is empty.
+ */
+public infix fun Char.until(to: Char): CharRange {
+    if (to <= '\u0000') return CharRange.EMPTY
+    return this .. (to - 1).toChar()
+}
+
+/**
+ * Returns a range from this value up to but excluding the specified [to] value.
+ *
+ * If the [to] value is less than or equal to [Int.MIN_VALUE] the returned range is empty.
+ */
+public infix fun Int.until(to: Int): IntRange {
+    if (to <= Int.MIN_VALUE) return IntRange.EMPTY
+    return this .. (to - 1).toInt()
+}
+
+/**
+ * Returns a range from this value up to but excluding the specified [to] value.
+ */
+public infix fun Long.until(to: Int): LongRange {
+    return this .. (to.toLong() - 1).toLong()
+}
+
+/**
+ * Returns a range from this value up to but excluding the specified [to] value.
+ *
+ * If the [to] value is less than or equal to [Int.MIN_VALUE] the returned range is empty.
+ */
+public infix fun Byte.until(to: Int): IntRange {
+    if (to <= Int.MIN_VALUE) return IntRange.EMPTY
+    return this.toInt() .. (to - 1).toInt()
+}
+
+/**
+ * Returns a range from this value up to but excluding the specified [to] value.
+ *
+ * If the [to] value is less than or equal to [Int.MIN_VALUE] the returned range is empty.
+ */
+public infix fun Short.until(to: Int): IntRange {
+    if (to <= Int.MIN_VALUE) return IntRange.EMPTY
+    return this.toInt() .. (to - 1).toInt()
+}
+
+/**
+ * Returns a range from this value up to but excluding the specified [to] value.
+ *
+ * If the [to] value is less than or equal to [Long.MIN_VALUE] the returned range is empty.
+ */
+public infix fun Int.until(to: Long): LongRange {
+    if (to <= Long.MIN_VALUE) return LongRange.EMPTY
+    return this.toLong() .. (to - 1).toLong()
+}
+
+/**
+ * Returns a range from this value up to but excluding the specified [to] value.
+ *
+ * If the [to] value is less than or equal to [Long.MIN_VALUE] the returned range is empty.
+ */
+public infix fun Long.until(to: Long): LongRange {
+    if (to <= Long.MIN_VALUE) return LongRange.EMPTY
+    return this .. (to - 1).toLong()
+}
+
+/**
+ * Returns a range from this value up to but excluding the specified [to] value.
+ *
+ * If the [to] value is less than or equal to [Long.MIN_VALUE] the returned range is empty.
+ */
+public infix fun Byte.until(to: Long): LongRange {
+    if (to <= Long.MIN_VALUE) return LongRange.EMPTY
+    return this.toLong() .. (to - 1).toLong()
+}
+
+/**
+ * Returns a range from this value up to but excluding the specified [to] value.
+ *
+ * If the [to] value is less than or equal to [Long.MIN_VALUE] the returned range is empty.
+ */
+public infix fun Short.until(to: Long): LongRange {
+    if (to <= Long.MIN_VALUE) return LongRange.EMPTY
+    return this.toLong() .. (to - 1).toLong()
+}
+
+/**
+ * Returns a range from this value up to but excluding the specified [to] value.
+ */
+public infix fun Int.until(to: Short): IntRange {
+    return this .. (to.toInt() - 1).toInt()
+}
+
+/**
+ * Returns a range from this value up to but excluding the specified [to] value.
+ */
+public infix fun Long.until(to: Short): LongRange {
+    return this .. (to.toLong() - 1).toLong()
+}
+
+/**
+ * Returns a range from this value up to but excluding the specified [to] value.
+ */
+public infix fun Byte.until(to: Short): IntRange {
+    return this.toInt() .. (to.toInt() - 1).toInt()
+}
+
+/**
+ * Returns a range from this value up to but excluding the specified [to] value.
+ */
+public infix fun Short.until(to: Short): IntRange {
+    return this.toInt() .. (to.toInt() - 1).toInt()
+}
+