{
BasicString!char str = "á1"; //'á' is encoded as 2 chars
assert(str.popBackCodePoint == 1);
assert(str == "á");
assert(str.popBackCodePoint == 2);
assert(str.empty);
assert(str.popBackCodePoint == 0);
assert(str.empty);
}
{
BasicString!char str = "1á"; //'á' is encoded as 2 chars
assert(str.length == 3);
str.erase(str.length - 1);
assert(str.length == 2);
assert(str.popBackCodePoint == 0); //popBackCodePoint cannot remove invalid code points
assert(str.length == 2);
}
Erases the last utf code point of the BasicString, effectively reducing its length by code point length.
Return number of erased characters, 0 if string is empty or if last character is not valid code point.