TUI Calculator/ binary to denary conversion

This is code covers:

• Casting 
• Functions 
• Tui's
• Basic input
• Procedures
• String element checking
• Basic mathematical operators
• Simple validation on binary section

It allows the user to chose from a text based menu and either:

• add, subtract, divide or multiply two numbers that the user inputs
• enter an 8 bit binary number and convert it denary

Here is the code:

link

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