bumped bundled fmt version to 4.1.0

include/spdlog/fmt/bundled/ostream.h

@@ -13,65 +13,59 @@
 #include "format.h"
 #include <ostream>
 
-namespace fmt
-{
+namespace fmt {
 
-namespace internal
-{
+namespace internal {
 
 template <class Char>
-class FormatBuf : public std::basic_streambuf<Char>
-{
-private:
-    typedef typename std::basic_streambuf<Char>::int_type int_type;
-    typedef typename std::basic_streambuf<Char>::traits_type traits_type;
+class FormatBuf : public std::basic_streambuf<Char> {
+ private:
+  typedef typename std::basic_streambuf<Char>::int_type int_type;
+  typedef typename std::basic_streambuf<Char>::traits_type traits_type;
 
-    Buffer<Char> &buffer_;
+  Buffer<Char> &buffer_;
 
-public:
-    FormatBuf(Buffer<Char> &buffer) : buffer_(buffer) {}
+ public:
+  FormatBuf(Buffer<Char> &buffer) : buffer_(buffer) {}
 
-protected:
-    // The put-area is actually always empty. This makes the implementation
-    // simpler and has the advantage that the streambuf and the buffer are always
-    // in sync and sputc never writes into uninitialized memory. The obvious
-    // disadvantage is that each call to sputc always results in a (virtual) call
-    // to overflow. There is no disadvantage here for sputn since this always
-    // results in a call to xsputn.
+ protected:
+  // The put-area is actually always empty. This makes the implementation
+  // simpler and has the advantage that the streambuf and the buffer are always
+  // in sync and sputc never writes into uninitialized memory. The obvious
+  // disadvantage is that each call to sputc always results in a (virtual) call
+  // to overflow. There is no disadvantage here for sputn since this always
+  // results in a call to xsputn.
 
-    int_type overflow(int_type ch = traits_type::eof()) FMT_OVERRIDE
-    {
-        if (!traits_type::eq_int_type(ch, traits_type::eof()))
-            buffer_.push_back(static_cast<Char>(ch));
-        return ch;
-    }
+  int_type overflow(int_type ch = traits_type::eof()) FMT_OVERRIDE {
+    if (!traits_type::eq_int_type(ch, traits_type::eof()))
+      buffer_.push_back(static_cast<Char>(ch));
+    return ch;
+  }
 
-    std::streamsize xsputn(const Char *s, std::streamsize count) FMT_OVERRIDE
-    {
-        buffer_.append(s, s + count);
-        return count;
-    }
+  std::streamsize xsputn(const Char *s, std::streamsize count) FMT_OVERRIDE {
+    buffer_.append(s, s + count);
+    return count;
+  }
 };
 
 Yes &convert(std::ostream &);
 
-struct DummyStream : std::ostream
-{
-    DummyStream();  // Suppress a bogus warning in MSVC.
-    // Hide all operator<< overloads from std::ostream.
-    void operator<<(Null<>);
+struct DummyStream : std::ostream {
+  DummyStream();  // Suppress a bogus warning in MSVC.
+
+  // Hide all operator<< overloads from std::ostream.
+  template <typename T>
+  typename EnableIf<sizeof(T) == 0>::type operator<<(const T &);
 };
 
 No &operator<<(std::ostream &, int);
 
-template<typename T>
-struct ConvertToIntImpl<T, true>
-{
-    // Convert to int only if T doesn't have an overloaded operator<<.
-    enum
-    {
-        value = sizeof(convert(get<DummyStream>() << get<T>())) == sizeof(No)
-    };
+template <typename T>
+struct ConvertToIntImpl<T, true> {
+  // Convert to int only if T doesn't have an overloaded operator<<.
+  enum {
+    value = sizeof(convert(get<DummyStream>() << get<T>())) == sizeof(No)
+  };
 };
 
 // Write the content of w to os.
@@ -81,17 +75,17 @@ FMT_API void write(std::ostream &os, Writer &w);
 // Formats a value.
 template <typename Char, typename ArgFormatter_, typename T>
 void format_arg(BasicFormatter<Char, ArgFormatter_> &f,
-                const Char *&format_str, const T &value)
-{
-    internal::MemoryBuffer<Char, internal::INLINE_BUFFER_SIZE> buffer;
+                const Char *&format_str, const T &value) {
+  internal::MemoryBuffer<Char, internal::INLINE_BUFFER_SIZE> buffer;
 
-    internal::FormatBuf<Char> format_buf(buffer);
-    std::basic_ostream<Char> output(&format_buf);
-    output << value;
+  internal::FormatBuf<Char> format_buf(buffer);
+  std::basic_ostream<Char> output(&format_buf);
+  output.exceptions(std::ios_base::failbit | std::ios_base::badbit);
+  output << value;
 
-    BasicStringRef<Char> str(&buffer[0], buffer.size());
-    typedef internal::MakeArg< BasicFormatter<Char> > MakeArg;
-    format_str = f.format(format_str, MakeArg(str));
+  BasicStringRef<Char> str(&buffer[0], buffer.size());
+  typedef internal::MakeArg< BasicFormatter<Char> > MakeArg;
+  format_str = f.format(format_str, MakeArg(str));
 }
 
 /**