c must be >= 11100000 (which it is)
If c is 11100000, then s[0] must be >= 10100000
If the global parameter utf8_allow_surrogates is false:
If c is 11101101 and s[0] is >= 10100000,
then this is a surrogate and we should fail.
c must be >= 11100000 (which it is)
If c is 11100000, then s[0] must be >= 10100000
If the global parameter utf8_allow_surrogates is false:
If c is 11101101 and s[0] is >= 10100000,
then this is a surrogate and we should fail.