// pretends to be const !!
inline size_t size() const; // number of characters (!= storage size).
size_t find (char) const;
- String substr (size_t start = 0, size_t len = -1) const;
+ String substr (size_t start = 0, int len = -1) const;
// operator == and != can be done if/when we have a 'casesensitive' flag to
// the constructors
// - means this sorts to the left of the parameter