Reroot the exception hierarchy into a toplevel Exception class

As the alternatives are unfortunate for applications trying to catch
all library errors, and it seems deriving from std::runtime_error
causes problems with MSVC DLLs (GH #340)

Effectively reverts 2837e915d82e43

1 files changed, 1 insertions, 1 deletions

diff --git a/src/lib/tls/tls_extensions.cpp b/src/lib/tls/tls_extensions.cpp
index 5f28c98b8..06efebb4b 100644
--- a/src/lib/tls/tls_extensions.cpp
+++ b/src/lib/tls/tls_extensions.cpp
@@ -228,7 +228,7 @@ std::vector<byte> Maximum_Fragment_Length::serialize() const
       case 4096:
          return std::vector<byte>(1, 4);
       default:
-         throw std::invalid_argument("Bad setting " +
+         throw Invalid_Argument("Bad setting " +
                                      std::to_string(m_max_fragment) +
                                      " for maximum fragment size");
       }