From 583ca36e62fc13b38348f9c42bbfb9ddd9fceaa0 Mon Sep 17 00:00:00 2001
From: Josh Wolfe <thejoshwolfe@gmail.com>
Date: Wed, 27 Sep 2017 18:54:43 -0700
Subject: add reset() method to IncrementingAllocator (#501)

---
 std/mem.zig | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'std')

diff --git a/std/mem.zig b/std/mem.zig
index 86c7a5a445..c7ebeb0157 100644
--- a/std/mem.zig
+++ b/std/mem.zig
@@ -94,6 +94,10 @@ pub const IncrementingAllocator = struct {
         _ = os.posix.munmap(self.bytes.ptr, self.bytes.len);
     }
 
+    fn reset(self: &IncrementingAllocator) {
+        self.end_index = 0;
+    }
+
     fn alloc(allocator: &Allocator, n: usize, alignment: usize) -> %[]u8 {
         const self = @fieldParentPtr(IncrementingAllocator, "allocator", allocator);
         const addr = @ptrToInt(&self.bytes[self.end_index]);
-- 
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