Maurizio Drocco

Design some mechanism (e.g., exception-based?) to report errors of different kinds: - typing (data/structure) errors - generic errors (e.g., non-existing file) - ...

ideas: - implementation choice as template parameter (similar to grppi)

read -> merge(-, read) -> write

- read -> to(write, write) - read -> to(write, +1) -> write - read -> to(+1, +2) -> write

- read -> sum -> write ### Corner Cases - single input item