chart_traits.patch

diff --git a/Release/include/cpprest/char_traits.h b/Release/include/cpprest/char_traits.h
new file mode 100644
index 00000000..ba9ef01e
--- /dev/null
+++ b/Release/include/cpprest/char_traits.h
@@ -0,0 +1,82 @@
+#pragma once
+
+#include <cstddef>
+
+#if (_LIBCPP_VERSION >= 190000)
+
+#include <cstdint>
+#include <cstring>
+#include <string>
+
+namespace std
+{
+template<>
+struct char_traits<uint8_t>
+{
+    using char_type = uint8_t;
+    using int_type = unsigned int;
+    using off_type = std::streamoff;
+    using pos_type = std::streampos;
+    using state_type = std::mbstate_t;
+
+    static void assign(char_type& c1, const char_type& c2) noexcept { c1 = c2; }
+
+    static bool eq(char_type c1, char_type c2) noexcept { return c1 == c2; }
+
+    static bool lt(char_type c1, char_type c2) noexcept { return c1 < c2; }
+
+    static int compare(const char_type* s1, const char_type* s2, std::size_t n) noexcept
+    {
+        return std::memcmp(s1, s2, n);
+    }
+
+    static std::size_t length(const char_type* s) noexcept
+    {
+        const char_type* p = s;
+        while (*p != 0)
+            ++p;
+        return p - s;
+    }
+
+    static const char_type* find(const char_type* s, std::size_t n, const char_type& a) noexcept
+    {
+        for (std::size_t i = 0; i < n; ++i)
+        {
+            if (eq(s[i], a))
+            {
+                return s + i;
+            }
+        }
+
+        return nullptr;
+    }
+
+    static char_type* move(char_type* s1, const char_type* s2, std::size_t n) noexcept
+    {
+        return static_cast<char_type*>(std::memmove(s1, s2, n));
+    }
+
+    static char_type* copy(char_type* s1, const char_type* s2, std::size_t n) noexcept
+    {
+        return static_cast<char_type*>(std::memcpy(s1, s2, n));
+    }
+
+    static char_type* assign(char_type* s, std::size_t n, char_type a) noexcept
+    {
+        std::fill_n(s, n, a);
+        return s;
+    }
+
+    static int_type not_eof(int_type c) noexcept { return c == eof() ? ~eof() : c; }
+
+    static char_type to_char_type(int_type c) noexcept { return static_cast<char_type>(c); }
+
+    static int_type to_int_type(char_type c) noexcept { return static_cast<int_type>(c); }
+
+    static bool eq_int_type(int_type c1, int_type c2) noexcept { return c1 == c2; }
+
+    static int_type eof() noexcept { return static_cast<int_type>(-1); }
+};
+} // namespace std
+
+#endif // (_LIBCPP_VERSION >= 190000)
diff --git a/Release/include/cpprest/streams.h b/Release/include/cpprest/streams.h
index b6c38640..704bfc92 100644
--- a/Release/include/cpprest/streams.h
+++ b/Release/include/cpprest/streams.h
@@ -15,6 +15,7 @@
 #ifndef CASA_STREAMS_H
 #define CASA_STREAMS_H
 
+#include "cpprest/char_traits.h"
 #include "cpprest/astreambuf.h"
 #include <iosfwd>
 #include <cstdio>