.. _sprout-string-basic_string-front: ############################################################################### front ############################################################################### Interface ======================================== .. sourcecode:: c++ SPROUT_CXX14_CONSTEXPR reference front(); SPROUT_CONSTEXPR const_reference front() const; Returns ======================================== | A reference to the first element in the string. Examples ======================================== .. sourcecode:: c++ #include using namespace sprout; SPROUT_STATIC_CONSTEXPR auto input = string<8>("homuhomu"); static_assert(input.front() == 'h', "a first element is h."); Complexity ======================================== | Recursive function invocations in *O(1)* (constant) depth. Header ======================================== | ``sprout/string/string.hpp`` | Convenience header: ``sprout/string.hpp``