diff --git a/include/fmt/core.h b/include/fmt/core.h
index 354377f6..9dfcd2d6 100644
--- a/include/fmt/core.h
+++ b/include/fmt/core.h
@@ -895,11 +895,11 @@ template <typename T> class buffer {
   buffer(const buffer&) = delete;
   void operator=(const buffer&) = delete;
 
-  auto begin() noexcept -> T* { return ptr_; }
-  auto end() noexcept -> T* { return ptr_ + size_; }
+  FMT_INLINE auto begin() noexcept -> T* { return ptr_; }
+  FMT_INLINE auto end() noexcept -> T* { return ptr_ + size_; }
 
-  auto begin() const noexcept -> const T* { return ptr_; }
-  auto end() const noexcept -> const T* { return ptr_ + size_; }
+  FMT_INLINE auto begin() const noexcept -> const T* { return ptr_; }
+  FMT_INLINE auto end() const noexcept -> const T* { return ptr_ + size_; }
 
   /** Returns the size of this buffer. */
   constexpr auto size() const noexcept -> size_t { return size_; }
@@ -1115,7 +1115,7 @@ auto get_buffer(OutputIt out) -> iterator_buffer<OutputIt, T> {
 }
 
 template <typename Buffer>
-auto get_iterator(Buffer& buf) -> decltype(buf.out()) {
+FMT_INLINE auto get_iterator(Buffer& buf) -> decltype(buf.out()) {
   return buf.out();
 }
 template <typename T> auto get_iterator(buffer<T>& buf) -> buffer_appender<T> {
@@ -1715,7 +1715,7 @@ class locale_ref {
   const void* locale_;  // A type-erased pointer to std::locale.
 
  public:
-  constexpr locale_ref() : locale_(nullptr) {}
+  constexpr FMT_INLINE locale_ref() : locale_(nullptr) {}
   template <typename Locale> explicit locale_ref(const Locale& loc);
 
   explicit operator bool() const noexcept { return locale_ != nullptr; }