Hash -> size_t

CMakeLists.txt

@@ -38,12 +38,10 @@ if(NOT CMAKE_BUILD_TYPE)
 endif()
 
 # Compiler specific options.
-if (CMAKE_CXX_COMPILER_ID MATCHES AppleClang|Clang)
-  set(STA_COMPILE_OPTIONS -Wall -Wcast-qual -Wunused-parameter -Wredundant-decls -Wno-deprecated-register)
-endif()
-
-if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
-  set(STA_COMPILE_OPTIONS -Wall -Wcast-qual -Wunused-parameter -Wredundant-decls)
+# Note -Wno-deprecated-register is to suppress bison errors.
+if ((CMAKE_CXX_COMPILER_ID MATCHES AppleClang|Clang)
+    OR (CMAKE_CXX_COMPILER_ID STREQUAL "GNU"))
+  set(STA_COMPILE_OPTIONS -Wall -Wextra -pedantic -Wcast-qual -Wredundant-decls -Wformat-security -Wno-deprecated-register)
 endif()
 
 message(STATUS "System name: ${CMAKE_SYSTEM_NAME}")

app/StaMain.cc

@@ -46,11 +46,8 @@ staMain(Sta *sta,
   Sta::setSta(sta);
   sta->makeComponents();
 
-  int thread_count = 1;
-  bool threads_exists = false;
-  parseThreadsArg(argc, argv, thread_count, threads_exists);
-  if (threads_exists)
-    sta->setThreadCount(thread_count);
+  int thread_count = parseThreadsArg(argc, argv);
+  sta->setThreadCount(thread_count);
 
   staSetupAppInit(argc, argv, swig_init, tcl_inits);
   // Set argc to 1 so Tcl_Main doesn't source any files.
@@ -58,25 +55,20 @@ staMain(Sta *sta,
   Tcl_Main(1, argv, staTclAppInit);
 }
 
-void
-parseThreadsArg(int argc,
-		char **argv,
-		int &thread_count,
-		bool &exists)
+int
+parseThreadsArg(int &argc,
+		char *argv[])
 {
   char *thread_arg = findCmdLineKey(argc, argv, "-threads");
   if (thread_arg) {
-    if (stringEqual(thread_arg, "max")) {
-      thread_count = processorCount();
-      exists = true;
-    }
-    else if (isDigits(thread_arg)) {
-      thread_count = atoi(thread_arg);
-      exists = true;
-    }
+    if (stringEqual(thread_arg, "max"))
+      return processorCount();
+    else if (isDigits(thread_arg))
+      return atoi(thread_arg);
     else
       fprintf(stderr,"Warning: -threads must be max or a positive integer.\n");
   }
+  return 1;
 }
 
 // Set globals to pass to staTclAppInit.

app/StaMain.hh

@@ -63,17 +63,9 @@ findCmdLineKey(int &argc,
 
 void
 showUsage(const char *prog);
-void
-parseThreadsArg(int argc,
-		char **argv,
-		int &threads,
-		bool &exists);
-void
-parseCmdsArg(int argc,
-	     char **argv,
-	     bool &native_cmds,
-	     bool &compatibility_cmds);
-
+int
+parseThreadsArg(int &argc,
+		char *argv[]);
 void
 sourceTclFile(const char *filename,
 	      bool echo,

graph/Graph.cc

@@ -699,7 +699,7 @@ Graph::makeArcDelayPools(ArcIndex arc_count,
     }
 
     // Leave some room for edits.
-    unsigned annot_size = arc_count * 1.2;
+    int annot_size = arc_count * 1.2;
     arc_delay_annotated_.resize(annot_size * ap_count);
   }
 }
@@ -731,9 +731,9 @@ Graph::makeEdgeArcDelays(Edge *edge)
     }
     edge->setArcDelays(arc_index);
     // Make sure there is room for delay_annotated flags.
-    unsigned max_annot_index = (arc_index + arc_count) * ap_count_;
+    size_t max_annot_index = (arc_index + arc_count) * ap_count_;
     if (max_annot_index >= arc_delay_annotated_.size()) {
-      unsigned size = max_annot_index * 1.2;
+      size_t size = max_annot_index * 1.2;
       arc_delay_annotated_.resize(size);
     }
     removeDelayAnnotated(edge);
@@ -817,7 +817,7 @@ Graph::arcDelayAnnotated(Edge *edge,
 			 DcalcAPIndex ap_index) const
 {
   if (arc_delay_annotated_.size()) {
-    unsigned index = (edge->arcDelays() + arc->index()) * ap_count_ + ap_index;
+    size_t index = (edge->arcDelays() + arc->index()) * ap_count_ + ap_index;
     if (index >= arc_delay_annotated_.size())
       internalError("arc_delay_annotated array bounds exceeded");
     return arc_delay_annotated_[index];
@@ -832,7 +832,7 @@ Graph::setArcDelayAnnotated(Edge *edge,
 			    DcalcAPIndex ap_index,
 			    bool annotated)
 {
-  unsigned index = (edge->arcDelays() + arc->index()) * ap_count_ + ap_index;
+  size_t index = (edge->arcDelays() + arc->index()) * ap_count_ + ap_index;
   if (index >= arc_delay_annotated_.size())
     internalError("arc_delay_annotated array bounds exceeded");
   arc_delay_annotated_[index] = annotated;
@@ -843,7 +843,7 @@ Graph::wireDelayAnnotated(Edge *edge,
 			  const TransRiseFall *tr,
 			  DcalcAPIndex ap_index) const
 {
-  unsigned index = (edge->arcDelays() + TimingArcSet::wireArcIndex(tr)) * ap_count_
+  size_t index = (edge->arcDelays() + TimingArcSet::wireArcIndex(tr)) * ap_count_
     + ap_index;
   if (index >= arc_delay_annotated_.size())
     internalError("arc_delay_annotated array bounds exceeded");
@@ -856,7 +856,7 @@ Graph::setWireDelayAnnotated(Edge *edge,
 			     DcalcAPIndex ap_index,
 			     bool annotated)
 {
-  unsigned index = (edge->arcDelays() + TimingArcSet::wireArcIndex(tr)) * ap_count_
+  size_t index = (edge->arcDelays() + TimingArcSet::wireArcIndex(tr)) * ap_count_
     + ap_index;
   if (index >= arc_delay_annotated_.size())
     internalError("arc_delay_annotated array bounds exceeded");

sdc/CycleAccting.cc

@@ -323,7 +323,7 @@ CycleAcctingLess::operator()(const CycleAccting *acct1,
 	&& acct1->target()->index() < acct2->target()->index());
 }
 
-Hash 
+size_t 
 CycleAcctingHash::operator()(const CycleAccting *acct) const
 {
   return hashSum(acct->src()->index(), acct->target()->index());

sdc/CycleAccting.hh

@@ -91,7 +91,7 @@ public:
 class CycleAcctingHash
 {
 public:
-  Hash operator()(const CycleAccting *acct) const;
+  size_t operator()(const CycleAccting *acct) const;
 };
 
 class CycleAcctingEqual

sdc/ExceptionPath.cc

@@ -292,16 +292,16 @@ ExceptionPath::fromThruToPriority(ExceptionFrom *from,
   return priority;
 }
 
-Hash
+size_t
 ExceptionPath::hash() const
 {
   return hash(nullptr);
 }
 
-Hash
+size_t
 ExceptionPath::hash(ExceptionPt *missing_pt) const
 {
-  Hash hash = typePriority();
+  size_t hash = typePriority();
   int pot = 32;
   ExceptionPtIterator pt_iter(this);
   while (pt_iter.hasNext()) {
@@ -942,7 +942,7 @@ ExceptionPt::ExceptionPt(const TransRiseFallBoth *tr,
 
 // ExceptionPt initialization functions set hash_ and incrementally
 // maintain the value.
-Hash
+size_t
 ExceptionPt::hash() const
 {
   return hash_;
@@ -1040,7 +1040,7 @@ ExceptionFromTo::findHash()
 {
   hash_ = 0;
   if (pins_) {
-    Hash hash = 0;
+    size_t hash = 0;
     PinSet::Iterator pin_iter(pins_);
     while (pin_iter.hasNext()) {
       const Pin *pin = pin_iter.next();
@@ -1049,7 +1049,7 @@ ExceptionFromTo::findHash()
     hash_ += hash * hash_pin;
   }
   if (clks_) {
-    Hash hash = 0;
+    size_t hash = 0;
     ClockSet::Iterator clk_iter(clks_);
     while (clk_iter.hasNext()) {
       Clock *clk = clk_iter.next();
@@ -1058,7 +1058,7 @@ ExceptionFromTo::findHash()
     hash_ += hash * hash_clk;
   }
   if (insts_) {
-    Hash hash = 0;
+    size_t hash = 0;
     InstanceSet::Iterator inst_iter(insts_);
     while (inst_iter.hasNext()) {
       Instance *inst = inst_iter.next();
@@ -1931,7 +1931,7 @@ ExceptionThru::findHash()
 {
   hash_ = 0;
   if (pins_) {
-    Hash hash = 0;
+    size_t hash = 0;
     PinSet::Iterator pin_iter(pins_);
     while (pin_iter.hasNext()) {
       const Pin *pin = pin_iter.next();
@@ -1940,7 +1940,7 @@ ExceptionThru::findHash()
     hash_ += hash * hash_pin;
   }
   if (nets_) {
-    Hash hash = 0;
+    size_t hash = 0;
     NetSet::Iterator net_iter(nets_);
     while (net_iter.hasNext()) {
       Net *net = net_iter.next();
@@ -1949,7 +1949,7 @@ ExceptionThru::findHash()
     hash_ += hash * hash_net;
   }
   if (insts_) {
-    Hash hash = 0;
+    size_t hash = 0;
     InstanceSet::Iterator inst_iter(insts_);
     while (inst_iter.hasNext()) {
       Instance *inst = inst_iter.next();
@@ -2373,7 +2373,7 @@ ExceptionState::isComplete() const
     && exception_->to() == nullptr;
 }
 
-Hash
+size_t
 ExceptionState::hash() const
 {
   return hashSum(exception_->hash(), index_);

sdc/ExceptionPath.hh

@@ -20,7 +20,6 @@
 #include "DisallowCopyAssign.hh"
 #include "Error.hh"
 #include "Set.hh"
-#include "Hash.hh"
 #include "SdcCmdComment.hh"
 #include "SdcClass.hh"
 
@@ -95,8 +94,8 @@ public:
   static int fromThruToPriority(ExceptionFrom *from,
   				ExceptionThruSeq *thrus,
 				ExceptionTo *to);
-  Hash hash() const;
-  Hash hash(ExceptionPt *missing_pt) const;
+  size_t hash() const;
+  size_t hash(ExceptionPt *missing_pt) const;
   // Mergeable properties (independent of exception points).
   virtual bool mergeable(ExceptionPath *exception) const = 0;
   bool mergeablePts(ExceptionPath *exception) const;
@@ -336,7 +335,7 @@ public:
   virtual InstanceSet *instances() = 0;
   virtual NetSet *nets() = 0;
   virtual EdgePinsSet *edges() = 0;
-  Hash hash() const;
+  size_t hash() const;
   virtual int nameCmp(ExceptionPt *pt, const Network *network) const = 0;
   virtual void mergeInto(ExceptionPt *pt) = 0;
   // All pins and instance/net pins.
@@ -361,14 +360,14 @@ protected:
   bool own_pts_;
   // Hash is cached because there may be many objects to speed up
   // exception merging.
-  Hash hash_;
+  size_t hash_;
 
   // Maximum number of objects for asString() to show.
   static const int as_string_max_objects_;
-  static const Hash hash_clk  =  3;
-  static const Hash hash_pin  =  5;
-  static const Hash hash_net  =  7;
-  static const Hash hash_inst = 11;
+  static const size_t hash_clk  =  3;
+  static const size_t hash_pin  =  5;
+  static const size_t hash_net  =  7;
+  static const size_t hash_inst = 11;
 
 private:
   DISALLOW_COPY_AND_ASSIGN(ExceptionPt);
@@ -645,7 +644,7 @@ public:
   ExceptionThru *nextThru() const { return next_thru_; }
   ExceptionState *nextState() const { return next_state_; }
   void setNextState(ExceptionState *next_state);
-  Hash hash() const;
+  size_t hash() const;
   
 private:
   DISALLOW_COPY_AND_ASSIGN(ExceptionState);

sdc/PinPair.cc

@@ -36,10 +36,10 @@ PinPairEqual::operator()(const PinPair *pair1,
     && pair1->second == pair2->second;
 }
 
-Hash
+size_t
 PinPairHash::operator()(const PinPair *pair) const
 {
-  Hash hash = hash_init_value;
+  size_t hash = hash_init_value;
   hashIncr(hash, hashPtr(pair->first));
   hashIncr(hash, hashPtr(pair->second));
   return hash;

sdc/PinPair.hh

@@ -37,7 +37,7 @@ typedef Set<PinPair*, PinPairLess> PinPairSet;
 class PinPairHash
 {
 public:
-  Hash operator()(const PinPair *pair) const;
+  size_t operator()(const PinPair *pair) const;
 };
 
 class PinPairEqual

sdc/Sdc.cc

@@ -4905,9 +4905,9 @@ void
 Sdc::recordMergeHash(ExceptionPath *exception,
 		     ExceptionPt *missing_pt)
 {
-  Hash hash = exception->hash(missing_pt);
+  size_t hash = exception->hash(missing_pt);
   debugPrint3(debug_, "exception_merge", 3,
-	      "record merge hash %u %s missing %s\n",
+	      "record merge hash %zu %s missing %s\n",
 	      hash,
 	      exception->asString(network_),
 	      missing_pt->asString(network_));
@@ -5120,7 +5120,7 @@ Sdc::findMergeMatch(ExceptionPath *exception)
   ExceptionPtIterator missing_pt_iter(exception);
   while (missing_pt_iter.hasNext()) {
     ExceptionPt *missing_pt = missing_pt_iter.next();
-    Hash hash = exception->hash(missing_pt);
+    size_t hash = exception->hash(missing_pt);
     ExceptionPathSet *matches = exception_merge_hash_.findKey(hash);
     if (matches) {
       ExceptionPathSet::Iterator match_iter(matches);
@@ -5341,9 +5341,9 @@ void
 Sdc::unrecordMergeHash(ExceptionPath *exception,
 		       ExceptionPt *missing_pt)
 {
-  Hash hash = exception->hash(missing_pt);
+  size_t hash = exception->hash(missing_pt);
   debugPrint3(debug_, "exception_merge", 3,
-	      "unrecord merge hash %u %s missing %s\n",
+	      "unrecord merge hash %zu %s missing %s\n",
 	      hash,
 	      exception->asString(network_),
 	      missing_pt->asString(network_));

sdc/Sdc.hh

@@ -1260,7 +1260,7 @@ protected:
 			const Corner *corner,
 			const MinMax *min_max) const;
   void removeClockGroups(ClockGroups *groups);
-  void ensureClkGroupExclusions();;
+  void ensureClkGroupExclusions();
   void makeClkGroupExclusions(ClockGroups *clk_groups);
   void makeClkGroupExclusions1(ClockGroupSet *groups);
   void makeClkGroupExclusions(ClockGroupSet *groups);

search/ClkInfo.cc

@@ -179,7 +179,7 @@ ClkInfo::refsFilter(const StaState *sta) const
 
 ////////////////////////////////////////////////////////////////
 
-Hash
+size_t
 ClkInfoHash::operator()(const ClkInfo *clk_info)
 {
   return clk_info->hash();

search/ClkInfo.hh

@@ -68,7 +68,7 @@ public:
   bool refsFilter(const StaState *sta) const;
   // This clk_info/tag is used for a generated clock source path.
   bool isGenClkSrcPath() const { return is_gen_clk_src_path_; }
-  Hash hash() const { return hash_; }
+  size_t hash() const { return hash_; }
 
 protected:
   void findHash(const StaState *sta);
@@ -83,7 +83,7 @@ private:
   ClockUncertainties *uncertainties_;
   Arrival insertion_;
   float latency_;
-  Hash hash_;
+  size_t hash_;
   unsigned int is_propagated_:1;
   unsigned int is_gen_clk_src_path_:1;
   unsigned int is_pulse_clk_:1;
@@ -106,7 +106,7 @@ protected:
 class ClkInfoHash
 {
 public:
-  Hash operator()(const ClkInfo *clk_info);
+  size_t operator()(const ClkInfo *clk_info);
 };
 
 class ClkInfoEqual

search/Corner.hh

@@ -44,7 +44,7 @@ typedef Vector<LibertyLibrary*> LibertySeq;
 class Corners : public StaState
 {
 public:
-  explicit Corners(StaState *sta);;
+  explicit Corners(StaState *sta);
   virtual ~Corners();
   void clear();
   int count() const;

search/Genclks.cc

@@ -18,7 +18,6 @@
 #include "Stats.hh"
 #include "Debug.hh"
 #include "Report.hh"
-#include "Hash.hh"
 #include "Network.hh"
 #include "PortDirection.hh"
 #include "Graph.hh"
@@ -1283,10 +1282,10 @@ ClockPinPairLess::operator()(const ClockPinPair &pair1,
 class ClockPinPairHash
 {
 public:
-  Hash operator()(const ClockPinPair &pair) const;
+  size_t operator()(const ClockPinPair &pair) const;
 };
 
-Hash
+size_t
 ClockPinPairHash::operator()(const ClockPinPair &pair) const
 {
   return hashSum(pair.first->index(), hashPtr(pair.second));

search/ReportPath.hh

@@ -458,7 +458,7 @@ protected:
   string descriptionField(Vertex *vertex);
   bool reportClkPath() const;
   string clkName(const Clock *clk,
-		 bool inverted);;
+		 bool inverted);
   bool hasExtInputDriver(const Pin *pin,
 			 const TransRiseFall *tr,
 			 const MinMax *min_max);
@@ -504,7 +504,7 @@ protected:
 			     // Return value.
 			     PathRef &ref_path);
   const char *asRisingFalling(const TransRiseFall *tr);
-  const char *asRiseFall(const TransRiseFall *tr);;
+  const char *asRiseFall(const TransRiseFall *tr);
 
   // Path options.
   ReportPathFormat format_;

search/Search.cc

@@ -2811,7 +2811,7 @@ Search::reportTagGroups() const
       tag_group->reportArrivalMap(this);
     }
   }
-  Hash long_hash = tag_group_set_->longestBucketHash();
+  size_t long_hash = tag_group_set_->longestBucketHash();
   report_->print("Longest hash bucket length %lu hash=%lu\n",
 		 tag_group_set_->bucketLength(long_hash),
 		 long_hash);
@@ -2927,8 +2927,8 @@ Search::reportTags() const
 		     tag->hash() % tag_set_->capacity(),
 		     tag->asString(false, this)) ;
   }
-  Hash long_hash = tag_set_->longestBucketHash();
-  printf("Longest hash bucket length %d hash=%u\n",
+  size_t long_hash = tag_set_->longestBucketHash();
+  printf("Longest hash bucket length %d hash=%zu\n",
 	 tag_set_->bucketLength(long_hash),
 	 long_hash);
 }

search/SearchClass.hh

@@ -21,7 +21,6 @@
 #include "Set.hh"
 #include "Map.hh"
 #include "UnorderedMap.hh"
-#include "Hash.hh"
 #include "StringSet.hh"
 #include "Delay.hh"
 #include "NetworkClass.hh"
@@ -77,7 +76,7 @@ class TagMatchHash
 public:
   TagMatchHash(bool match_crpr_clk_pin,
 	       const StaState *sta);
-  Hash operator()(const Tag *tag) const;
+  size_t operator()(const Tag *tag) const;
 
 protected:
   bool match_crpr_clk_pin_;

search/Tag.cc

@@ -274,7 +274,7 @@ Tag::findHash()
   hashIncr(match_hash_, clk_info_->isGenClkSrcPath());
 }
 
-Hash
+size_t
 Tag::matchHash(bool match_crpr_clk_pin) const
 {
   if (match_crpr_clk_pin)
@@ -317,8 +317,8 @@ tagCmp(const Tag *tag1,
   if (path_ap_index1 > path_ap_index2)
     return 1;
 
-  Hash clk_info1 = tag1->clkInfo()->hash();
-  Hash clk_info2 = tag2->clkInfo()->hash();
+  size_t clk_info1 = tag1->clkInfo()->hash();
+  size_t clk_info2 = tag2->clkInfo()->hash();
   if (clk_info1 < clk_info2)
     return -1;
   if (clk_info1 > clk_info2)
@@ -650,7 +650,7 @@ tagStateEqualCrpr(const Tag *tag1,
 
 ////////////////////////////////////////////////////////////////
 
-Hash
+size_t
 TagHash::operator()(const Tag *tag)
 {
   return tag->hash();
@@ -670,7 +670,7 @@ TagMatchHash::TagMatchHash(bool match_crpr_clk_pin,
 {
 }
 
-Hash
+size_t
 TagMatchHash::operator()(const Tag *tag) const
 {
   return tag->matchHash(match_crpr_clk_pin_);

search/Tag.hh

@@ -20,7 +20,6 @@
 #include "DisallowCopyAssign.hh"
 #include "Vector.hh"
 #include "Set.hh"
-#include "Hash.hh"
 #include "SearchClass.hh"
 #include "SdcClass.hh"
 #include "Transition.hh"
@@ -79,8 +78,8 @@ public:
   bool isLoop() const { return is_loop_; }
   bool isFilter() const { return is_filter_; }
   bool isSegmentStart() const { return is_segment_start_; }
-  Hash hash() const { return hash_; }
-  Hash matchHash(bool match_crpr_clk_pin) const;
+  size_t hash() const { return hash_; }
+  size_t matchHash(bool match_crpr_clk_pin) const;
 
 protected:
   void findHash();
@@ -91,8 +90,8 @@ private:
   ClkInfo *clk_info_;
   InputDelay *input_delay_;
   ExceptionStateSet *states_;
-  Hash hash_;
-  Hash match_hash_;
+  size_t hash_;
+  size_t match_hash_;
   bool is_clk_:1;
   bool is_filter_:1;
   bool is_loop_:1;
@@ -121,7 +120,7 @@ public:
 class TagHash
 {
 public:
-  Hash operator()(const Tag *tag);
+  size_t operator()(const Tag *tag);
 };
 
 class TagEqual

search/TagGroup.cc

@@ -58,10 +58,10 @@ TagGroup::~TagGroup()
     delete arrival_map_;
 }
 
-Hash
+size_t
 TagGroup::arrivalMapHash(ArrivalMap *arrival_map)
 {
-  Hash hash = 0;
+  size_t hash = 0;
   ArrivalMap::Iterator arrival_iter(arrival_map);
   while (arrival_iter.hasNext()) {
     Tag *tag;
@@ -338,7 +338,7 @@ TagGroupBldr::copyArrivals(TagGroup *tag_group,
 
 ////////////////////////////////////////////////////////////////
 
-Hash
+size_t
 TagGroupHash::operator()(const TagGroup *group) const
 {
   return group->hash();

search/TagGroup.hh

@@ -23,7 +23,6 @@
 #include "Iterator.hh"
 #include "MinMax.hh"
 #include "Transition.hh"
-#include "Hash.hh"
 #include "GraphClass.hh"
 #include "SearchClass.hh"
 #include "Tag.hh"
@@ -47,7 +46,7 @@ public:
   TagGroup(TagGroupBldr *tag_bldr);
   ~TagGroup();
   TagGroupIndex index() const { return index_; }
-  Hash hash() const { return hash_; }
+  size_t hash() const { return hash_; }
   void report(const StaState *sta) const;
   void reportArrivalMap(const StaState *sta) const;
   bool hasClkTag() const { return has_clk_tag_; }
@@ -67,11 +66,11 @@ public:
   bool hasTag(Tag *tag) const;
 
 protected:
-  Hash arrivalMapHash(ArrivalMap *arrival_map);
+  size_t arrivalMapHash(ArrivalMap *arrival_map);
 
   // tag -> arrival index
   ArrivalMap *arrival_map_;
-  Hash hash_;
+  size_t hash_;
   unsigned int index_:tag_group_index_bits;
   unsigned int has_clk_tag_:1;
   unsigned int has_genclk_src_tag_:1;
@@ -86,7 +85,7 @@ private:
 class TagGroupHash
 {
 public:
-  Hash operator()(const TagGroup *tag) const;
+  size_t operator()(const TagGroup *tag) const;
 };
 
 class TagGroupEqual

search/WritePathSpice.cc

@@ -72,7 +72,7 @@ public:
 		 const char *gnd_name,
 		 const StaState *sta);
   ~WritePathSpice();
-  void writeSpice();;
+  void writeSpice();
 
 private:
   void writeHeader();
@@ -228,7 +228,7 @@ class SubcktEndsMissing : public StaException
 {
 public:
   SubcktEndsMissing(const char *cell_name,
-		    const char *subckt_filename);;
+		    const char *subckt_filename);
   const char *what() const throw();
 
 protected:

util/Hash.cc

@@ -20,10 +20,10 @@
 
 namespace sta {
 
-Hash
+size_t
 hashString(const char *str)
 {
-  unsigned hash = hash_init_value;
+  size_t hash = hash_init_value;
   size_t length = strlen(str);
   for (size_t i = 0; i < length; i++)
     hash = ((hash << 5) + hash) ^ str[i];

util/Hash.hh

@@ -17,26 +17,26 @@
 #ifndef STA_HASH_H
 #define STA_HASH_H
 
-#include <stddef.h>  // size_t
+#include <cstddef>
 
 namespace sta {
 
-typedef unsigned int Hash;
+using std::size_t;
 
-const Hash hash_init_value = 5381;
+const size_t hash_init_value = 5381;
 
 // Dan Bernstein, comp.lang.c.
-inline Hash
-hashSum(Hash hash,
-	Hash add)
+inline size_t
+hashSum(size_t hash,
+	size_t add)
 {
   // hash * 31 ^ add.
   return ((hash << 5) + hash) ^ add;
 }
 
 inline void
-hashIncr(Hash &hash,
-	 Hash add)
+hashIncr(size_t &hash,
+	 size_t add)
 {
   // hash * 31 ^ add.
   hash = ((hash << 5) + hash) ^ add;
@@ -49,7 +49,7 @@ nextMersenne(size_t n)
 }
 
 // Sadly necessary until c++ std::hash works for char *.
-Hash
+size_t
 hashString(const char *str);
 
 } // namespace

util/HashSet.hh

@@ -18,7 +18,6 @@
 #define STA_HASHSET_H
 
 #include <stddef.h>  // size_t
-#include "Hash.hh"
 
 namespace sta {
 
@@ -51,8 +50,8 @@ public:
   void clear();
   void deleteContentsClear();
   int longestBucketLength() const;
-  Hash longestBucketHash() const;
-  int bucketLength(Hash hash) const;
+  size_t longestBucketHash() const;
+  int bucketLength(size_t hash) const;
 
   void
   deleteContents()
@@ -424,11 +423,11 @@ HashSet<KEY, HASH, EQUAL>::longestBucketLength() const
 }
 
 template <class KEY, class HASH, class EQUAL>
-Hash
+size_t
 HashSet<KEY, HASH, EQUAL>::longestBucketHash() const
 {
   int longest = 0;
-  Hash longest_hash = 0;
+  size_t longest_hash = 0;
   for (size_t hash = 0; hash < capacity_; hash++) {
     int length = bucketLength(hash);
     if (length > longest) {
@@ -441,7 +440,7 @@ HashSet<KEY, HASH, EQUAL>::longestBucketHash() const
 
 template <class KEY, class HASH, class EQUAL>
 int
-HashSet<KEY, HASH, EQUAL>::bucketLength(Hash hash) const
+HashSet<KEY, HASH, EQUAL>::bucketLength(size_t hash) const
 {
   int length = 0;
   for (HashSetBucket<KEY> *bucket = table_[hash];