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

2 files changed, 4 insertions, 4 deletions

diff --git a/src/lib/codec/base64/base64.cpp b/src/lib/codec/base64/base64.cpp
index a63d2b373..b5f4244a1 100644
--- a/src/lib/codec/base64/base64.cpp
+++ b/src/lib/codec/base64/base64.cpp
@@ -162,7 +162,7 @@ size_t base64_decode(byte output[],
          else if(bad_char == "\r")
            bad_char = "\\r";
 
-         throw std::invalid_argument(
+         throw Invalid_Argument(
            std::string("base64_decode: invalid base64 character '") +
            bad_char + "'");
          }
@@ -214,7 +214,7 @@ size_t base64_decode(byte output[],
                                   consumed, true, ignore_ws);
 
    if(consumed != input_length)
-      throw std::invalid_argument("base64_decode: input did not have full bytes");
+      throw Invalid_Argument("base64_decode: input did not have full bytes");
 
    return written;
    }
diff --git a/src/lib/codec/hex/hex.cpp b/src/lib/codec/hex/hex.cpp
index 4da719320..a718cc8be 100644
--- a/src/lib/codec/hex/hex.cpp
+++ b/src/lib/codec/hex/hex.cpp
@@ -109,7 +109,7 @@ size_t hex_decode(byte output[],
          else if(bad_char == "\n")
            bad_char = "\\n";
 
-         throw std::invalid_argument(
+         throw Invalid_Argument(
            std::string("hex_decode: invalid hex character '") +
            bad_char + "'");
          }
@@ -147,7 +147,7 @@ size_t hex_decode(byte output[],
                                consumed, ignore_ws);
 
    if(consumed != input_length)
-      throw std::invalid_argument("hex_decode: input did not have full bytes");
+      throw Invalid_Argument("hex_decode: input did not have full bytes");
 
    return written;
    }