For C# and Java sure. Those are relatively easy to decompile and the decompilers are quite reliable. With exception of features like generator functions and lam

For C# and Java sure. Those are relatively easy to decompile and the decompilers are quite reliable. With exception of features like generator functions and lambdas most of the languages map 1:1 from source to bytecode, type information is mostly maintained. With C and C++ things are a lot harder.