I am trying to understand available blockchain frameworks, I have two questions:
Is there any permissible blockchain platform supporting c/c++, I have looked at Hyperledger and Corda, they seem to be build on go and java?
Another question I have is, is there any true(where I can see and study the source code) open source blockchain platform(apart from bitcoins), Hyperledger and Corda seem to release only binaries
There are many implementations of Blockchain like Ethereum, Eris, Sidechain... I suggest you to study Ethereum.
On the other hand, probably they are not build on c/c ++, but Ethereum has a client developed on C++ (cpp-ethereum - Ethereum C++ client)