diff --git a/dcalc/Delay.cc b/dcalc/Delay.cc
index c40bd429..48c867a3 100644
--- a/dcalc/Delay.cc
+++ b/dcalc/Delay.cc
@@ -223,6 +223,14 @@ delayAsString(const Delay &delay,
                        sta->units()->timeUnit()->digits(), sta);
 }
 
+std::string
+delayAsString(const Delay &delay,
+              int digits,
+              const StaState *sta)
+{
+  return delayAsString(delay, EarlyLate::late(), digits, sta);
+}
+
 std::string
 delayAsString(const Delay &delay,
               const EarlyLate *early_late,
diff --git a/include/sta/Delay.hh b/include/sta/Delay.hh
index dae429af..e2547557 100644
--- a/include/sta/Delay.hh
+++ b/include/sta/Delay.hh
@@ -63,6 +63,10 @@ public:
   void setSkewness(float skewness);
 
   void operator=(float delay);
+  // This allows applications that do not support statistical timing
+  // to treat Delays as floats without explicitly converting with
+  // delayAsFloat.
+  operator float() const { return mean(); }
 
 private:
   std::array<float, 4> values_;
@@ -203,9 +207,15 @@ void
 delaySetMean(Delay &delay,
              float mean);
 
+// early_late == late
 std::string
 delayAsString(const Delay &delay,
               const StaState *sta);
+// early_late == late
+std::string
+delayAsString(const Delay &delay,
+              int digits,
+              const StaState *sta);
 std::string
 delayAsString(const Delay &delay,
               const EarlyLate *early_late,
diff --git a/include/sta/Report.hh b/include/sta/Report.hh
index fb42f00b..7e9aab55 100644
--- a/include/sta/Report.hh
+++ b/include/sta/Report.hh
@@ -138,13 +138,13 @@ public:
   }
 
   // Log output to filename until logEnd is called.
-  virtual void logBegin(std::string_view filename);
+  virtual void logBegin(std::string filename);
   virtual void logEnd();
 
   // Redirect output to filename until redirectFileEnd is called.
-  virtual void redirectFileBegin(std::string_view filename);
+  virtual void redirectFileBegin(std::string filename);
   // Redirect append output to filename until redirectFileEnd is called.
-  virtual void redirectFileAppendBegin(std::string_view filename);
+  virtual void redirectFileAppendBegin(std::string filename);
   virtual void redirectFileEnd();
   // Redirect output to a string until redirectStringEnd is called.
   virtual void redirectStringBegin();
diff --git a/include/sta/ReportTcl.hh b/include/sta/ReportTcl.hh
index 5f4a6cd0..acdf84dc 100644
--- a/include/sta/ReportTcl.hh
+++ b/include/sta/ReportTcl.hh
@@ -44,10 +44,10 @@ class ReportTcl : public Report
 public:
   ReportTcl();
   virtual ~ReportTcl();
-  void logBegin(std::string_view filename) override;
+  void logBegin(std::string filename) override;
   void logEnd() override;
-  void redirectFileBegin(std::string_view filename) override;
-  void redirectFileAppendBegin(std::string_view filename) override;
+  void redirectFileBegin(std::string filename) override;
+  void redirectFileAppendBegin(std::string filename) override;
   void redirectFileEnd() override;
   void redirectStringBegin() override;
   const char *redirectStringEnd() override;
diff --git a/liberty/LibertyScanner.hh b/liberty/LibertyScanner.hh
index b32369cd..3623940c 100644
--- a/liberty/LibertyScanner.hh
+++ b/liberty/LibertyScanner.hh
@@ -24,7 +24,9 @@
 
 #pragma once
 
-#include "LibertyLocation.hh"
+#include <string>
+#include <istream>
+
 #include "LibertyParse.hh"
 
 #ifndef __FLEX_LEXER_H
diff --git a/search/Path.cc b/search/Path.cc
index c0bb35d1..e7f78bde 100644
--- a/search/Path.cc
+++ b/search/Path.cc
@@ -50,8 +50,8 @@ Path::Path() :
 
 Path::Path(const Path *path) :
   prev_path_(path ? path->prev_path_ : nullptr),
-  arrival_(path ? path->arrival_ : 0.0),
-  required_(path ? path->required_ : 0.0),
+  arrival_(path ? path->arrival_ : delay_zero),
+  required_(path ? path->required_ : delay_zero),
   vertex_id_(path ? path->vertex_id_ : vertex_id_null),
   tag_index_(path ? path->tag_index_ : tag_index_null),
   is_enum_(path ? path->is_enum_ : false),
diff --git a/util/Report.cc b/util/Report.cc
index d539c574..d8a6a04d 100644
--- a/util/Report.cc
+++ b/util/Report.cc
@@ -185,12 +185,11 @@ Report::isSuppressed(int id)
 ////////////////////////////////////////////////////////////////
 
 void
-Report::logBegin(std::string_view filename)
+Report::logBegin(std::string filename)
 {
-  std::string filename_str(filename);
-  log_stream_ = fopen(filename_str.c_str(), "w");
+  log_stream_ = fopen(filename.c_str(), "w");
   if (log_stream_ == nullptr)
-    throw FileNotWritable(std::move(filename_str));
+    throw FileNotWritable(std::move(filename));
 }
 
 void
@@ -202,21 +201,19 @@ Report::logEnd()
 }
 
 void
-Report::redirectFileBegin(std::string_view filename)
+Report::redirectFileBegin(std::string filename)
 {
-  std::string filename_str(filename);
-  redirect_stream_ = fopen(filename_str.c_str(), "w");
+  redirect_stream_ = fopen(filename.c_str(), "w");
   if (redirect_stream_ == nullptr)
-    throw FileNotWritable(std::move(filename_str));
+    throw FileNotWritable(std::move(filename));
 }
 
 void
-Report::redirectFileAppendBegin(std::string_view filename)
+Report::redirectFileAppendBegin(std::string filename)
 {
-  std::string filename_str(filename);
-  redirect_stream_ = fopen(filename_str.c_str(), "a");
+  redirect_stream_ = fopen(filename.c_str(), "a");
   if (redirect_stream_ == nullptr)
-    throw FileNotWritable(std::move(filename_str));
+    throw FileNotWritable(std::move(filename));
 }
 
 void
diff --git a/util/ReportTcl.cc b/util/ReportTcl.cc
index a418a53a..97eef4af 100644
--- a/util/ReportTcl.cc
+++ b/util/ReportTcl.cc
@@ -183,7 +183,7 @@ ReportTcl::flush()
 // Tcl_Main can eval multiple commands before the flushing the command
 // output, so the log/redirect commands must force a flush.
 void
-ReportTcl::logBegin(std::string_view filename)
+ReportTcl::logBegin(std::string filename)
 {
   flush();
   Report::logBegin(filename);
@@ -197,14 +197,14 @@ ReportTcl::logEnd()
 }
 
 void
-ReportTcl::redirectFileBegin(std::string_view filename)
+ReportTcl::redirectFileBegin(std::string filename)
 {
   flush();
   Report::redirectFileBegin(filename);
 }
 
 void
-ReportTcl::redirectFileAppendBegin(std::string_view filename)
+ReportTcl::redirectFileAppendBegin(std::string filename)
 {
   flush();
   Report::redirectFileAppendBegin(filename);