(scm_i_print_array): Print zero rank arrays specially.
(tag_to_type): Return #t for an empty tag, not the empty symbol.
(scm_i_read_array): Allow zero rank arrays.
Removed ref_stack field.
(PSTATE_STACK_REF, PSTATE_STACK_SET): New, for accessing the stack
of a print state. Use them everywhere instead of ref_stack.
(scm_vector_elements, scm_vector_writable_elements,
scm_generalized_vector_get_handle): Moved to vectors.[hc] from
unif.[hc].
(SCM_SIMPLE_VECTOR_LOC): Removed.
(SCM_VECTOR_MAX_LENGTH, SCM_VECTOR_LENGTH, SCM_VELTS,
SCM_WRITABLE_VELTS, SCM_VECTOR_REF, SCM_VECTOR_SET,
scm_vector_equal_p): Moved from vectors.[hc] to deprecated.[hc].
(scm_vector_equal_p, scm_i_vector_equal_p): Renamed former to
latter. Changed use in eq.c.
SCM_SMOB_PREDICATE in this file.
(is_uvec): Also recognize one-dimensional uniform numeric arrays
of the right type.
(scm_is_uniform_vector): Likewise.
(uvec_fast_ref): Made BASE param const.
(uvec_writable_elements, uvec_elements): New.
(uvec_to_list, uvec_ref, uvec_set_x, uvec_length,
scm_c_uniform_vector_length, scm_c_uniform_vector_ref,
scm_c_uniform_set_x): Use them to also deal with one-dimensional
arrays.
(scm_uniform_vector_ref, scm_uniform_vector_set_x): Deprecate old
argument convention.
(scm_uniform_vector_to_list): Let uvec_to_list do all the
checking.
(scm_uniform_vector_length): Use uvec_length.
type of POS parameter to be signed, positions can be negative.
(scm_array_handle_release): New, changed all uses of
scm_t_array_handle to properly call it.
(scm_vector_get_handle, scm_generalized_vector_get_handle):
Renamed former to latter.
scm_bitvector_writable_elements): Use a scm_t_array_handle and
deliver offset, length and increment to caller. Changed all uses.
(scm_bitvector_release_elements,
scm_frame_bitvector_release_elements,
scm_bitvector_release_writable_elements,
scm_frame_bitvector_release_writable_elements): Removed.
(scm_array_handle_bit_elements,
scm_array_handle_bit_writable_elements,
scm_array_handle_bit_elements_offset): New.
(scm_make_typed_array): The special value for non-initialized
arrays is now SCM_UNSPECIFIED. The old special value SCM_BOOL_F
was a valid value to fill bitvectors with, so it can't really be
specialed out.
