to_string(enum) functions have wider contract

Author: ashtum

include/boost/http_proto/field.hpp

@@ -389,7 +389,7 @@ enum class field : unsigned short
 */
 BOOST_HTTP_PROTO_DECL
 core::string_view
-to_string(field f) noexcept;
+to_string(field f);
 
 /** Return the field name constant for a header name.
 

include/boost/http_proto/version.hpp

@@ -33,7 +33,7 @@ enum class version : char
 */
 BOOST_HTTP_PROTO_DECL
 core::string_view
-to_string(version v) noexcept;
+to_string(version v);
 
 /** Format the version to an output stream.
 

src/field.cpp

@@ -552,7 +552,7 @@ get_field_table() noexcept
 } // detail
 
 core::string_view
-to_string(field f) noexcept
+to_string(field f)
 {
     auto const& v = detail::get_field_table();
     BOOST_ASSERT(static_cast<unsigned>(f) < v.size());

src/version.cpp

@@ -15,7 +15,7 @@ namespace http_proto {
 
 core::string_view
 to_string(
-    version v) noexcept
+    version v)
 {
     switch(v)
     {