11. UART Write Overloading

Simulate a simplified UART driver that supports multiple kinds of data transmission.

You must create exactly three overloaded functions named write, each handling a different type of UART transmission:

• One overload must handle sending a single byte value.
• One overload must handle sending a text string.
• One overload must handle sending a buffer of bytes.
   

Program Behavior

In main():

• Read an integer mode:
  • 1 → send a single byte
  • 2 → send a string
  • 3 → send a buffer of bytes
• Depending on the mode:
  • Read the appropriate data
  • Call the correct overloaded version of write
  • Print the transmitted output exactly as described
    
     

Example  (Mode 1)

Input:

1 65

Output:

65

Example  (Mode 2)

Input:

2 Hello

Output:

Hello

Example  (Mode 3)

Input:

3 4 10 20 30 40

Output:

10 20 30 40

Input / Output Rules

• Mode 1

  • Input: 1 <byte>
    Output: <byte>

• Mode 2

  • Input: 2 <string>
    Output: <string>

• Mode 3

  • Input: 3 <length> <byte1> <byte2> ...
    Output: <byte1> <byte2> ...

Output formatting requirements:

• Bytes must be separated by single spaces
• No trailing space
• No extra newline
   

Constraints:

• Implement exactly three overloaded functions named write
• Each overload must accept different parameter types
• The overload set must be unambiguous across compilers
• Single byte values are numeric and in the range 0–255
• Buffer length n is in the range 0–100
• Buffer values are numeric bytes in the range 0–255
• String input contains no spaces (read using cin >> s)
• Buffer input values must be treated as raw byte values, not ASCII characters