<human>:  Python function to cast string to uint8 in c++.
<bot>: Here is a Python function to cast string to uint8 in c++

import sys

def cast_string_to_uint8(s):
  """Cast a string to uint8."""
  return int(s, 16)

# Enter the string
s = "1234567890"

# Calling the function
print((cast_string_to_uint8(s)))

#Example Output
# 78187493520

#Remember to inspect code for bugs.