Clean up exceptions. Remove some unused ones like Config_Error. Make

Invalid_Argument just a typedef for std::invalid_argument. Make
Botan::Exception a typedef for std::runtime_error. Make Memory_Exhaustion
a public exception, and use it in other places where memory allocations
can fail.

1 files changed, 2 insertions, 1 deletions

diff --git a/src/block/lion/lion.cpp b/src/block/lion/lion.cpp
index e590a78ce..d8dfd1fcb 100644
--- a/src/block/lion/lion.cpp
+++ b/src/block/lion/lion.cpp
@@ -116,8 +116,9 @@ Lion::Lion(HashFunction* hash_in, StreamCipher* sc_in, u32bit block_len) :
    {
    if(2*LEFT_SIZE + 1 > BLOCK_SIZE)
       throw Invalid_Argument(name() + ": Chosen block size is too small");
+
    if(!cipher->valid_keylength(LEFT_SIZE))
-      throw Exception(name() + ": This stream/hash combination is invalid");
+      throw Invalid_Argument(name() + ": This stream/hash combo is invalid");
 
    key1.resize(LEFT_SIZE);
    key2.resize(LEFT_SIZE);