Andrew MacLeod
534c5352a0
This provides a path_oracle class which can optionally be used in conjunction with another oracle to track relations on a path as it is walked. * value-relation.cc (class equiv_chain): Move to header file. (path_oracle::path_oracle): New. (path_oracle::~path_oracle): New. (path_oracle::register_relation): New. (path_oracle::query_relation): New. (path_oracle::reset_path): New. (path_oracle::dump): New. * value-relation.h (class equiv_chain): Move to here. (class path_oracle): New.
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