From 0af7d663194beddcde420349bbd91430e0b2e423 Mon Sep 17 00:00:00 2001
From: Guest_account Guest_account prguest11 <prguest11@taipan.cs>
Date: Tue, 11 Oct 2011 16:16:53 +0100
Subject: remove implicit conversion-to-double operator from LogVal<T> that
 caused overflow errors, clean up some pf code

---
 decoder/aligner.cc   |  2 +-
 decoder/cfg.cc       |  2 +-
 decoder/cfg_format.h |  2 +-
 decoder/decoder.cc   | 10 +++++-----
 decoder/hg.cc        |  4 ++--
 decoder/rule_lexer.l |  2 ++
 decoder/trule.h      | 15 ++++++++++++++-
 7 files changed, 26 insertions(+), 11 deletions(-)

(limited to 'decoder')

diff --git a/decoder/aligner.cc b/decoder/aligner.cc
index 292ee123..53e059fb 100644
--- a/decoder/aligner.cc
+++ b/decoder/aligner.cc
@@ -165,7 +165,7 @@ inline void WriteProbGrid(const Array2D<prob_t>& m, ostream* pos) {
       if (m(i,j) == prob_t::Zero()) {
         os << "\t---X---";
       } else {
-        snprintf(b, 1024, "%0.5f", static_cast<double>(m(i,j)));
+        snprintf(b, 1024, "%0.5f", m(i,j).as_float());
         os << '\t' << b;
       }
     }
diff --git a/decoder/cfg.cc b/decoder/cfg.cc
index 651978d2..cd7e66e9 100755
--- a/decoder/cfg.cc
+++ b/decoder/cfg.cc
@@ -639,7 +639,7 @@ void CFG::Print(std::ostream &o,CFGFormat const& f) const {
     o << '['<<f.goal_nt_name <<']';
     WordID rhs=-goal_nt;
     f.print_rhs(o,*this,&rhs,&rhs+1);
-    if (pushed_inside!=1)
+    if (pushed_inside!=prob_t::One())
       f.print_features(o,pushed_inside);
     o<<'\n';
   }
diff --git a/decoder/cfg_format.h b/decoder/cfg_format.h
index c6a594b8..2f40d483 100755
--- a/decoder/cfg_format.h
+++ b/decoder/cfg_format.h
@@ -101,7 +101,7 @@ struct CFGFormat {
   }
 
   void print_features(std::ostream &o,prob_t p,FeatureVector const& fv=FeatureVector()) const {
-    bool logp=(logprob_feat && p!=1);
+    bool logp=(logprob_feat && p!=prob_t::One());
     if (features || logp) {
       o << partsep;
       if (logp)
diff --git a/decoder/decoder.cc b/decoder/decoder.cc
index c4fe3c4d..3b53fd6b 100644
--- a/decoder/decoder.cc
+++ b/decoder/decoder.cc
@@ -325,7 +325,7 @@ struct DecoderImpl {
 
   static void ConvertSV(const SparseVector<prob_t>& src, SparseVector<double>* trg) {
     for (SparseVector<prob_t>::const_iterator it = src.begin(); it != src.end(); ++it)
-      trg->set_value(it->first, it->second);
+      trg->set_value(it->first, it->second.as_float());
   }
 };
 
@@ -788,10 +788,10 @@ bool DecoderImpl::Decode(const string& input, DecoderObserver* o) {
   const bool show_tree_structure=conf.count("show_tree_structure");
   if (!SILENT) forest_stats(forest,"  Init. forest",show_tree_structure,oracle.show_derivation);
   if (conf.count("show_expected_length")) {
-    const PRPair<double, double> res =
-      Inside<PRPair<double, double>,
-             PRWeightFunction<double, EdgeProb, double, ELengthWeightFunction> >(forest);
-    cerr << "  Expected length  (words): " << res.r / res.p << "\t" << res << endl;
+    const PRPair<prob_t, prob_t> res =
+      Inside<PRPair<prob_t, prob_t>,
+             PRWeightFunction<prob_t, EdgeProb, prob_t, ELengthWeightFunction> >(forest);
+    cerr << "  Expected length  (words): " << (res.r / res.p).as_float() << "\t" << res << endl;
   }
 
   if (conf.count("show_partition")) {
diff --git a/decoder/hg.cc b/decoder/hg.cc
index 3ad17f1a..180986d7 100644
--- a/decoder/hg.cc
+++ b/decoder/hg.cc
@@ -157,14 +157,14 @@ prob_t Hypergraph::ComputeEdgePosteriors(double scale, vector<prob_t>* posts) co
   const ScaledEdgeProb weight(scale);
   const ScaledTransitionEventWeightFunction w2(scale);
   SparseVector<prob_t> pv;
-  const double inside = InsideOutside<prob_t,
+  const prob_t inside = InsideOutside<prob_t,
                   ScaledEdgeProb,
                   SparseVector<prob_t>,
                   ScaledTransitionEventWeightFunction>(*this, &pv, weight, w2);
   posts->resize(edges_.size());
   for (int i = 0; i < edges_.size(); ++i)
     (*posts)[i] = prob_t(pv.value(i));
-  return prob_t(inside);
+  return inside;
 }
 
 prob_t Hypergraph::ComputeBestPathThroughEdges(vector<prob_t>* post) const {
diff --git a/decoder/rule_lexer.l b/decoder/rule_lexer.l
index 9331d8ed..083a5bb1 100644
--- a/decoder/rule_lexer.l
+++ b/decoder/rule_lexer.l
@@ -220,6 +220,8 @@ NT [^\t \[\],]+
                   std::cerr << "Line " << lex_line << ": LHS and RHS arity mismatch!\n";
                   abort();
                 }
+		// const bool ignore_grammar_features = false;
+		// if (ignore_grammar_features) scfglex_num_feats = 0;
 		TRulePtr rp(new TRule(scfglex_lhs, scfglex_src_rhs, scfglex_src_rhs_size, scfglex_trg_rhs, scfglex_trg_rhs_size, scfglex_feat_ids, scfglex_feat_vals, scfglex_num_feats, scfglex_src_arity, scfglex_als, scfglex_num_als));
     check_and_update_ctf_stack(rp);
     TRulePtr coarse_rp = ((ctf_level == 0) ? TRulePtr() : ctf_rule_stack.top());
diff --git a/decoder/trule.h b/decoder/trule.h
index 4df4ec90..8eb2a059 100644
--- a/decoder/trule.h
+++ b/decoder/trule.h
@@ -5,7 +5,9 @@
 #include <vector>
 #include <cassert>
 #include <iostream>
-#include <boost/shared_ptr.hpp>
+
+#include "boost/shared_ptr.hpp"
+#include "boost/functional/hash.hpp"
 
 #include "sparse_vector.h"
 #include "wordid.h"
@@ -162,4 +164,15 @@ class TRule {
   bool SanityCheck() const;
 };
 
+inline size_t hash_value(const TRule& r) {
+  size_t h = boost::hash_value(r.e_);
+  boost::hash_combine(h, -r.lhs_);
+  boost::hash_combine(h, boost::hash_value(r.f_));
+  return h;
+}
+
+inline bool operator==(const TRule& a, const TRule& b) {
+  return (a.lhs_ == b.lhs_ && a.e_ == b.e_ && a.f_ == b.f_);
+}
+
 #endif
-- 
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