fix #2118: FMT_COMPILE did not work with tm formatter (#2119)

Co-authored-by: summivox <[email protected]>
fmtlib · Jan 30, 2021 · 1980ca8 · 1980ca8
1 parent 2a25e2b
commit 1980ca8
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/include/fmt/chrono.h b/include/fmt/chrono.h
@@ -423,7 +423,8 @@ template <typename Char> struct formatter<std::tm, Char> {
   }
 
   template <typename FormatContext>
-  auto format(const std::tm& tm, FormatContext& ctx) -> decltype(ctx.out()) {
+  auto format(const std::tm& tm, FormatContext& ctx) const
+      -> decltype(ctx.out()) {
     basic_memory_buffer<Char> tm_format;
     tm_format.append(specs.begin(), specs.end());
     tm_format.push_back('\0');