From 0061a209b6c5df17ed1e56554c7e06a445bc9614 Mon Sep 17 00:00:00 2001
From: Joonas Javanainen <joonas.javanainen@gmail.com>
Date: Wed, 25 Oct 2017 20:08:24 +0300
Subject: [PATCH] Concat NUL terminator to dynamic strings before format

---
 src/lib.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/lib.rs b/src/lib.rs
index 2cd3205..8143500 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -76,7 +76,10 @@ macro_rules! im_str {
         }
     });
     ($e:tt, $($arg:tt)*) => ({
-        &::imgui::ImString::new(format!($e, $($arg)*))
+        unsafe {
+          &::imgui::ImString::from_utf8_with_nul_unchecked(
+            format!(concat!($e, "\0"), $($arg)*).into_bytes())
+        }
     })
 }