Merge branch 'upstream-KWSys' into update-kwsys

* upstream-KWSys:
  KWSys 2019-07-25 (a24a6acb)

Source/kwsys/CommandLineArguments.cxx

@@ -67,10 +67,10 @@ class CommandLineArgumentsInternal
 {
 public:
   CommandLineArgumentsInternal()
+    : UnknownArgumentCallback{ KWSYS_NULLPTR }
+    , ClientData{ KWSYS_NULLPTR }
+    , LastArgument{ 0 }
   {
-    this->UnknownArgumentCallback = KWSYS_NULLPTR;
-    this->ClientData = KWSYS_NULLPTR;
-    this->LastArgument = 0;
   }
 
   typedef CommandLineArgumentsVectorOfStrings VectorOfStrings;

Source/kwsys/RegularExpression.cxx

@@ -337,7 +337,6 @@ bool RegularExpression::compile(const char* exp)
 {
   const char* scan;
   const char* longest;
-  size_t len;
   int flags;
 
   if (exp == KWSYS_NULLPTR) {
@@ -412,7 +411,7 @@ bool RegularExpression::compile(const char* exp)
     //
     if (flags & SPSTART) {
       longest = KWSYS_NULLPTR;
-      len = 0;
+      size_t len = 0;
       for (; scan != KWSYS_NULLPTR; scan = regnext(scan))
         if (OP(scan) == EXACTLY && strlen(OPERAND(scan)) >= len) {
           longest = OPERAND(scan);

Source/kwsys/RegularExpression.hxx.in

@@ -407,8 +407,12 @@ private:
  * Create an empty regular expression.
  */
 inline RegularExpression::RegularExpression()
+  : regstart{}
+  , reganch{}
+  , regmust{}
+  , program{ 0 }
+  , progsize{}
 {
-  this->program = 0;
 }
 
 /**
@@ -416,8 +420,12 @@ inline RegularExpression::RegularExpression()
  * compiles s.
  */
 inline RegularExpression::RegularExpression(const char* s)
+  : regstart{}
+  , reganch{}
+  , regmust{}
+  , program{ 0 }
+  , progsize{}
 {
-  this->program = 0;
   if (s) {
     this->compile(s);
   }
@@ -428,8 +436,12 @@ inline RegularExpression::RegularExpression(const char* s)
  * compiles s.
  */
 inline RegularExpression::RegularExpression(const std::string& s)
+  : regstart{}
+  , reganch{}
+  , regmust{}
+  , program{ 0 }
+  , progsize{}
 {
-  this->program = 0;
   this->compile(s);
 }
 

Source/kwsys/SystemTools.cxx

@@ -3403,11 +3403,7 @@ static void SystemToolsAppendComponents(
         out_components.emplace_back(std::move(*i));
       }
     } else if (!i->empty() && *i != cur) {
-#if __cplusplus >= 201103L || (defined(_MSVC_LANG) && _MSVC_LANG >= 201103L)
-      out_components.push_back(std::move(*i));
-#else
-      out_components.push_back(*i);
-#endif
+      out_components.emplace_back(std::move(*i));
     }
   }
 }
@@ -4743,7 +4739,7 @@ void SystemTools::ClassInitialize()
       // Test progressively shorter logical-to-physical mappings.
       std::string cwd_str = cwd;
       std::string pwd_path;
-      Realpath(pwd_str.c_str(), pwd_path);
+      Realpath(pwd_str, pwd_path);
       while (cwd_str == pwd_path && cwd_str != pwd_str) {
         // The current pair of paths is a working logical mapping.
         cwd_changed = cwd_str;
@@ -4753,7 +4749,7 @@ void SystemTools::ClassInitialize()
         // mapping still works.
         pwd_str = SystemTools::GetFilenamePath(pwd_str);
         cwd_str = SystemTools::GetFilenamePath(cwd_str);
-        Realpath(pwd_str.c_str(), pwd_path);
+        Realpath(pwd_str, pwd_path);
       }
 
       // Add the translation to keep the logical path name.