From be0e268468e588489d9bc09a4b5d876199ee4209 Mon Sep 17 00:00:00 2001
From: Victor Zverovich <victor.zverovich@gmail.com>
Date: Fri, 31 Aug 2018 15:34:31 -0700
Subject: [PATCH] Optimize processing of trailing '}'

---
 include/fmt/format.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/fmt/format.h b/include/fmt/format.h
index 65101326..18175bd6 100644
--- a/include/fmt/format.h
+++ b/include/fmt/format.h
@@ -2148,7 +2148,8 @@ FMT_CONSTEXPR void parse_format_string(
     // 2.5x faster than the naive one-pass implementation on long format strings.
     auto p = find<IS_CONSTEXPR>(begin, end, '{');
     if (p == end) {
-      write(begin, end);
+      if (begin != end)
+        write(begin, end);
       return;
     }
     write(begin, p);