add a helper method to sys::Path for clang, patch by

Kovarththanan Rajaratnam!

llvm-svn: 54655

include/llvm/System/Path.h

@@ -202,6 +202,12 @@ namespace sys {
         return *this;
       }
 
+      /// Makes a copy of \p that to \p this.
+      /// @param \p that A std::string denoting the path
+      /// @returns \p this
+      /// @brief Assignment Operator
+      Path &operator=(const std::string &that);
+
       /// Compares \p this Path with \p that Path for equality.
       /// @returns true if \p this and \p that refer to the same thing.
       /// @brief Equality Operator

lib/System/Unix/Path.inc

@@ -81,6 +81,12 @@ Path::Path(const std::string& p)
 Path::Path(const char *StrStart, unsigned StrLen)
   : path(StrStart, StrLen) {}
 
+Path&
+Path::operator=(const std::string &that) {
+  path = that;
+  return *this;
+}
+
 bool 
 Path::isValid() const {
   // Check some obvious things

lib/System/Win32/Path.inc

@@ -56,6 +56,13 @@ Path::Path(const char *StrStart, unsigned StrLen)
   FlipBackSlashes(path);
 }
 
+Path&
+Path::operator=(const std::string &that) {
+  path = that;
+  FlipBackSlashes(path);
+  return *this;
+}
+
 bool
 Path::isValid() const {
   if (path.empty())