Estimated hours taken: 6
Various bug fixes and enhancements to var.m and other stuff in
extras/trailed_update.
extras/trailed_update/var.m:
Add code to detect floundering.
Change the code for debug_freeze/3 to avoid a floundering warning.
Add new predicates debug_freeze/4 (to go with debug_freeze/3)
and dump_var/3.
Fix a bug in freeze/3 (higher-order terms are monomorphic, so
there is no need to explicitly pass type-infos when calling them).
Fix a bug in wakeup_delayed_goals/2 (we need to set the binding
to ground _before_ waking up the goals).
extras/trailed_update/Mmakefile:
Add `ML = ml --mercury-libs shared', so that it will work on Linux.
extras/trailed_update/samples/Mmakefile:
Make it work with shared libraries on Linux.
extras/trailed_update/samples/tests.m:
extras/trailed_update/samples/tests.exp:
Some test cases for var.m.
extras/trailed_update/tr_store.m:
Add a prototype for ML_compare_typeinfo().
extras/trailed_update/unsafe.m:
Change the C code for unsafe_perform_io to match the new
interface for exported Mercury procedures that do I/O --
there is no longer any need to pass dummy io__state arguments
in the C code.
Estimated hours taken: 1
extras/trailed_update/tr_store.m:
New file. A backtrackable version of library/store.m.
extras/trailed_update/tr_array.m:
Delete the `mui_' and `mdi_' prefixes on predicate names.
This was done for consistency with tr_store.m.
extras/trailed_update/trailed_update.m:
Add tr_store.m to the list of modules in the `trailed_update'
library.
extras/trailed_update/.cvsignore:
Ignore .c and .h files.
