diff --git a/doc/api.rst b/doc/api.rst
index 4d09ecb6..62706c61 100644
--- a/doc/api.rst
+++ b/doc/api.rst
@@ -38,7 +38,7 @@ arguments in the resulting string.
 
 .. _format:
 
-.. doxygenfunction:: format(string_view, const Args&...)
+.. doxygenfunction:: format(const String&, const Args&...)
 .. doxygenfunction:: vformat(string_view, format_args)
 
 .. _print:
diff --git a/include/fmt/core.h b/include/fmt/core.h
index cb2274e3..14c81ece 100644
--- a/include/fmt/core.h
+++ b/include/fmt/core.h
@@ -9,14 +9,13 @@
 #define FMT_CORE_H_
 
 #include <cassert>
-#include <cstdio>
 #include <cstring>
 #include <iterator>
 #include <string>
 #include <type_traits>
 
 // The fmt library version in the form major * 10000 + minor * 100 + patch.
-#define FMT_VERSION 50100
+#define FMT_VERSION 50200
 
 #ifdef __has_feature
 # define FMT_HAS_FEATURE(x) __has_feature(x)
@@ -181,13 +180,6 @@
 # define FMT_ASSERT(condition, message) assert((condition) && message)
 #endif
 
-#define FMT_DELETED = delete
-
-// A macro to disallow the copy construction and assignment.
-#define FMT_DISALLOW_COPY_AND_ASSIGN(Type) \
-    Type(const Type &) FMT_DELETED; \
-    void operator=(const Type &) FMT_DELETED
-
 // libc++ supports string_view in pre-c++17.
 #if (FMT_HAS_INCLUDE(<string_view>) && \
       (__cplusplus > 201402L || defined(_LIBCPP_VERSION))) || \
@@ -343,7 +335,8 @@ namespace internal {
 template <typename T>
 class basic_buffer {
  private:
-  FMT_DISALLOW_COPY_AND_ASSIGN(basic_buffer);
+  basic_buffer(const basic_buffer &) = delete;
+  void operator=(const basic_buffer &) = delete;
 
   T *ptr_;
   std::size_t size_;
@@ -815,7 +808,8 @@ namespace internal {
 template <typename Context>
 class arg_map {
  private:
-  FMT_DISALLOW_COPY_AND_ASSIGN(arg_map);
+  arg_map(const arg_map &) = delete;
+  void operator=(const arg_map &) = delete;
 
   typedef typename Context::char_type char_type;
 
@@ -930,7 +924,8 @@ class basic_format_context :
  private:
   internal::arg_map<basic_format_context> map_;
 
-  FMT_DISALLOW_COPY_AND_ASSIGN(basic_format_context);
+  basic_format_context(const basic_format_context &) = delete;
+  void operator=(const basic_format_context &) = delete;
 
   typedef internal::context_base<OutputIt, basic_format_context, Char> base;
   typedef typename base::format_arg format_arg;
@@ -1233,7 +1228,7 @@ inline internal::named_arg<T, wchar_t> arg(wstring_view name, const T &arg) {
 // This function template is deleted intentionally to disable nested named
 // arguments as in ``format("{}", arg("a", arg("b", 42)))``.
 template <typename S, typename T, typename Char>
-void arg(S, internal::named_arg<T, Char>) FMT_DELETED;
+void arg(S, internal::named_arg<T, Char>) = delete;
 
 #ifndef FMT_EXTENDED_COLORS
 // color and (v)print_colored are deprecated.
@@ -1252,6 +1247,61 @@ inline void print_colored(color c, wstring_view format_str,
 }
 #endif
 
+// A base class for compile-time strings. It is defined in the fmt namespace to
+// make formatting functions visible via ADL, e.g. format(fmt("{}"), 42).
+struct compile_string {};
+
+namespace internal {
+// If S is a format string type, format_string_traints<S>::char_type gives its
+// character type.
+template <typename S, typename Enable = void>
+struct format_string_traits {
+ private:
+  // Use constructability as a way to detect if format_string_traits is
+  // specialized because other methods are broken on MSVC2013.
+  format_string_traits();
+};
+
+template <typename Char>
+struct format_string_traits_base { typedef Char char_type; };
+
+template <typename Char>
+struct format_string_traits<Char *> : format_string_traits_base<Char> {};
+
+template <typename Char>
+struct format_string_traits<const Char *> : format_string_traits_base<Char> {};
+
+template <typename Char, std::size_t N>
+struct format_string_traits<Char[N]> : format_string_traits_base<Char> {};
+
+template <typename Char, std::size_t N>
+struct format_string_traits<const Char[N]> : format_string_traits_base<Char> {};
+
+template <typename Char>
+struct format_string_traits<std::basic_string<Char>> :
+    format_string_traits_base<Char> {};
+
+template <typename Char>
+struct format_string_traits<basic_string_view<Char>> :
+    format_string_traits_base<Char> {};
+
+template <typename S>
+struct is_format_string :
+    std::integral_constant<
+      bool, std::is_constructible<format_string_traits<S>>::value> {};
+
+template <typename S>
+struct is_compile_string :
+    std::integral_constant<bool, std::is_base_of<compile_string, S>::value> {};
+
+template <typename... Args, typename S>
+typename std::enable_if<!is_compile_string<S>::value>::type
+    check_format_string(S) {}
+template <typename... Args, typename S>
+typename std::enable_if<is_compile_string<S>::value>::type
+    check_format_string(S);
+}  // namespace internal
+
 format_context::iterator vformat_to(
     internal::buffer &buf, string_view format_str, format_args args);
 wformat_context::iterator vformat_to(
@@ -1292,44 +1342,6 @@ typename std::enable_if<
 std::string vformat(string_view format_str, format_args args);
 std::wstring vformat(wstring_view format_str, wformat_args args);
 
-namespace internal {
-// If S is a format string type, format_string_traints<S>::char_type gives its
-// character type.
-template <typename S>
-struct format_string_traits {
- private:
-  // Use construtbility as a way to detect if format_string_traits is
-  // specialized because other methods are broken on MSVC2013.
-  format_string_traits();
-};
-
-template <typename Char>
-struct format_string_traits_base { typedef Char char_type; };
-
-template <typename Char>
-struct format_string_traits<const Char *>: format_string_traits_base<Char> {};
-
-template <typename Char>
-struct format_string_traits<Char *>: format_string_traits_base<Char> {};
-
-template <typename Char>
-struct format_string_traits<std::basic_string<Char>>:
-    format_string_traits_base<Char> {};
-
-template <typename Char>
-struct format_string_traits<basic_string_view<Char>>:
-    format_string_traits_base<Char> {};
-
-template <typename S>
-struct is_format_string:
-  std::integral_constant<
-    bool, std::is_constructible<format_string_traits<S>>::value> {};
-
-template <typename... Args, typename S>
-typename std::enable_if<is_format_string<S>::value>::type
-  check_format_string(S) {}
-}  // namespace internal
-
 /**
   \rst
   Formats arguments and returns the result as a string.
@@ -1343,15 +1355,15 @@ typename std::enable_if<is_format_string<S>::value>::type
 template <typename String, typename... Args>
 inline std::basic_string<
   typename internal::format_string_traits<String>::char_type>
-    format(String format_str, const Args & ... args) {
+    format(const String &format_str, const Args & ... args) {
   typedef typename internal::format_string_traits<String>::char_type char_type;
   internal::check_format_string<Args...>(format_str);
   // This should be just
-  // return vformat(format_str, make_format_args(args...));
+  //   return vformat(format_str, make_format_args(args...));
   // but gcc has trouble optimizing the latter, so break it down.
   typedef typename buffer_context<char_type>::type context_type;
   format_arg_store<context_type, Args...> as{args...};
-  return vformat(format_str, as);
+  return vformat(basic_string_view<char_type>(format_str), as);
 }
 
 FMT_API void vprint(std::FILE *f, string_view format_str, format_args args);
diff --git a/include/fmt/format.h b/include/fmt/format.h
index e522ca4f..6013c537 100644
--- a/include/fmt/format.h
+++ b/include/fmt/format.h
@@ -1352,10 +1352,13 @@ FMT_CONSTEXPR unsigned basic_parse_context<Char, ErrorHandler>::next_arg_id() {
   return 0;
 }
 
-struct compile_string {};
-
 namespace internal {
 
+template <typename S>
+struct format_string_traits<
+  S, typename std::enable_if<std::is_base_of<compile_string, S>::value>::type>:
+    format_string_traits_base<char> {};
+
 template <typename Char, typename Handler>
 FMT_CONSTEXPR void handle_int_type_spec(Char spec, Handler &&handler) {
   switch (spec) {
@@ -1536,8 +1539,6 @@ class arg_formatter_base {
   writer_type writer_;
   format_specs &specs_;
 
-  FMT_DISALLOW_COPY_AND_ASSIGN(arg_formatter_base);
-
   struct char_writer {
     char_type value;
     template <typename It>
@@ -1645,10 +1646,6 @@ class arg_formatter_base {
   }
 };
 
-template <typename S>
-struct is_compile_string:
-  std::integral_constant<bool, std::is_base_of<compile_string, S>::value> {};
-
 template <typename Char>
 FMT_CONSTEXPR bool is_name_start(Char c) {
   return ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z') || '_' == c;
@@ -2464,13 +2461,9 @@ class basic_writer {
   typedef basic_format_specs<char_type> format_specs;
 
  private:
-  // Output iterator.
-  iterator out_;
-
+  iterator out_;  // Output iterator.
   std::unique_ptr<locale_provider> locale_;
 
-  FMT_DISALLOW_COPY_AND_ASSIGN(basic_writer);
-
   iterator out() const { return out_; }
 
   // Attempts to reserve space for n extra characters in the output range.
@@ -3677,14 +3670,6 @@ inline std::wstring vformat(wstring_view format_str, wformat_args args) {
   return to_string(buffer);
 }
 
-template <typename String, typename... Args>
-inline typename std::enable_if<
-  internal::is_compile_string<String>::value, std::string>::type
-    format(String format_str, const Args & ... args) {
-  internal::check_format_string<Args...>(format_str);
-  return vformat(format_str.data(), make_format_args(args...));
-}
-
 template <typename String, typename... Args>
 inline typename std::enable_if<internal::is_compile_string<String>::value>::type
     print(String format_str, const Args & ... args) {
@@ -3983,6 +3968,7 @@ FMT_END_NAMESPACE
     struct S : fmt::compile_string { \
       static FMT_CONSTEXPR pointer data() { return s; } \
       static FMT_CONSTEXPR size_t size() { return sizeof(s); } \
+      explicit operator fmt::string_view() const { return s; } \
     }; \
     return S{}; \
   }()
diff --git a/include/fmt/posix.h b/include/fmt/posix.h
index 8682d716..cadb6d2a 100644
--- a/include/fmt/posix.h
+++ b/include/fmt/posix.h
@@ -184,7 +184,9 @@ public:
 
 #else
  private:
-  FMT_DISALLOW_COPY_AND_ASSIGN(buffered_file);
+  buffered_file(const buffered_file &) = delete;
+  void operator=(const buffered_file &) = delete;
+
 
  public:
   buffered_file(buffered_file &&other) FMT_NOEXCEPT : file_(other.file_) {
@@ -294,7 +296,8 @@ class file {
 
 #else
  private:
-  FMT_DISALLOW_COPY_AND_ASSIGN(file);
+  file(const file &) = delete;
+  void operator=(const file &) = delete;
 
  public:
   file(file &&other) FMT_NOEXCEPT : fd_(other.fd_) {
@@ -381,7 +384,8 @@ class Locale {
 
   locale_t locale_;
 
-  FMT_DISALLOW_COPY_AND_ASSIGN(Locale);
+  Locale(const Locale &) = delete;
+  void operator=(const Locale &) = delete;
 
  public:
   typedef locale_t Type;
diff --git a/include/fmt/printf.h b/include/fmt/printf.h
index dd2df386..cbf08a49 100644
--- a/include/fmt/printf.h
+++ b/include/fmt/printf.h
@@ -142,8 +142,6 @@ class char_converter: public function<void> {
  private:
   basic_format_arg<Context> &arg_;
 
-  FMT_DISALLOW_COPY_AND_ASSIGN(char_converter);
-
  public:
   explicit char_converter(basic_format_arg<Context> &arg) : arg_(arg) {}
 
@@ -169,8 +167,6 @@ class printf_width_handler: public function<unsigned> {
 
   format_specs &spec_;
 
-  FMT_DISALLOW_COPY_AND_ASSIGN(printf_width_handler);
-
  public:
   explicit printf_width_handler(format_specs &spec) : spec_(spec) {}