* doc/ref/api-compound.texi (VHashes): Add missing `init' parameter in
documentation for vhash-fold and vhash-fold-right, and also improve
description.
* module/ice-9/vlist.scm (vhash-fold, vhash-fold-right): Rename formal
parameter `seed' to `init', to match documentation. Improve
docstrings.
* libguile/fluids.c (grow_dynamic_state, new_fluid): Arrange for the
default value in the dynamic-state vector to be SCM_UNDEFINED instead
of SCM_BOOL_F. If the value in the dynamic-state is #f, default to a
value attached to the fluid instead. This allows useful default
values.
(scm_make_fluid_with_default): New function, allows the user to
specify a default value for the fluid. Defaults to #f. Bound to
`make-fluid' on the Scheme side.
(scm_make_unbound_fluid): Use SCM_UNDEFINED as the default in all
threads.
(scm_fluid_unset_x): Also unset the default value. Not sure if this
is the right thing.
(fluid_ref): Update to the new default-value strategy.
* libguile/threads.c (scm_i_reset_fluid): Reset to SCM_UNDEFINED.
* libguile/threads.h: Remove extra arg to scm_i_reset_fluid.
* libguile/vm-i-system.c (fluid-ref): Update to new default-value
strategy.
* module/ice-9/vlist.scm (block-growth-factor): Default to 2 in all
threads. Fixes http://debbugs.gnu.org/10093.
* module/ice-9/vlist.scm (vlist-fold-right): Avoid `vlist-reverse' and
instead `vlist-ref' individual elements. The result is about twice
faster. Thanks Andy for suggesting it indirectly. :-)
