Data type simulator for atomic types, registers and unions.

This is an interactive program. Instructions follow:

• ATOMICO <name> <representation> <alignment>: Defines a new atomic type of name <name> , whose representation takes <representation> bytes and must align at <alignment> bytes.
• STRUCT <name> [<type>]: Defines a new record of name <name>. Records fields are described within [<type>]. Notice fields won't be named but only described by their type.
• UNION <name> [<type>]: Defines a new union type of name <name>. Each variant is described within [<type>]. Notice fields won't be named but only described by their type.
• DESCRIBIR <name>: Display information related to type named <name>. This information includes size, alignment and wasted bytes for the type if for the following cases:
  • Registers and unions are saved without packaging.
  • Registers and unions are packed.
  • Registers and unions are reordered for optimal storage.

For IO testing run cabal run and then interact with main program