From 0efa78d4a0f1399a3eb224f1fd62b6f54f9fe0b2 Mon Sep 17 00:00:00 2001
From: Svyatoslav Scherbina <svyatoslav.scherbina@jetbrains.com>
Date: Thu, 5 Oct 2017 17:21:10 +0300
Subject: [PATCH] Add `.toCStringArray(AutofreeScope)` to interop utils

---
 .../src/main/kotlin/kotlinx/cinterop/Utils.kt      | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/Interop/Runtime/src/main/kotlin/kotlinx/cinterop/Utils.kt b/Interop/Runtime/src/main/kotlin/kotlinx/cinterop/Utils.kt
index ecb5aa053bc..d6b06f3c1f2 100644
--- a/Interop/Runtime/src/main/kotlin/kotlinx/cinterop/Utils.kt
+++ b/Interop/Runtime/src/main/kotlin/kotlinx/cinterop/Utils.kt
@@ -361,6 +361,20 @@ val String.cstr: CValues<ByteVar>
         }
     }
 
+/**
+ * Convert this list of Kotlin strings to C array of C strings,
+ * allocating memory for the array and C strings with given [AutofreeScope].
+ */
+fun List<String>.toCStringArray(autofreeScope: AutofreeScope): CPointer<CPointerVar<ByteVar>> =
+        autofreeScope.allocArrayOf(this.map { it.cstr.getPointer(autofreeScope) })
+
+/**
+ * Convert this array of Kotlin strings to C array of C strings,
+ * allocating memory for the array and C strings with given [AutofreeScope].
+ */
+fun Array<String>.toCStringArray(autofreeScope: AutofreeScope): CPointer<CPointerVar<ByteVar>> =
+        autofreeScope.allocArrayOf(this.map { it.cstr.getPointer(autofreeScope) })
+
 val String.wcstr: CValues<ShortVar>
     get() {
         val chars = CharArray(this.length, { i -> this.get(i)})