From 924d26113e10f0645f9b5e957f4f7818a7e6d79b Mon Sep 17 00:00:00 2001
From: Florin Iucha <florin@signbit.net>
Date: Sat, 15 Dec 2018 12:45:26 -0500
Subject: [PATCH] Fix sign conversion

---
 include/fmt/chrono.h | 2 +-
 include/fmt/time.h   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/fmt/chrono.h b/include/fmt/chrono.h
index 65f5b5a5..a964ea93 100644
--- a/include/fmt/chrono.h
+++ b/include/fmt/chrono.h
@@ -377,7 +377,7 @@ struct formatter<std::chrono::duration<Rep, Period>, Char> {
       -> decltype(ctx.begin()) {
     auto begin = ctx.begin(), end = ctx.end();
     end = parse_chrono_format(begin, end, internal::chrono_format_checker());
-    format_str = basic_string_view<Char>(&*begin, end - begin);
+    format_str = basic_string_view<Char>(&*begin, static_cast<size_t>(end - begin));
     return end;
   }
 
diff --git a/include/fmt/time.h b/include/fmt/time.h
index fbd3c60a..da4edd8b 100644
--- a/include/fmt/time.h
+++ b/include/fmt/time.h
@@ -122,7 +122,7 @@ struct formatter<std::tm, Char> {
     auto end = it;
     while (end != ctx.end() && *end != '}')
       ++end;
-    tm_format.reserve(end - it + 1);
+    tm_format.reserve(static_cast<size_t>(end - it + 1));
     tm_format.append(it, end);
     tm_format.push_back('\0');
     return end;