cpp/llvm; os.Args; build: add llvm.BinDir to PATH

cpp/std/std.go

@@ -16,6 +16,8 @@
 
 package std
 
+// -----------------------------------------------------------------------------
+
 const (
 	LLGoFiles   = "_wrap/string.cpp"
 	LLGoPackage = "link: c++"

cpp/std/string.go

@@ -25,6 +25,11 @@ import (
 
 // -----------------------------------------------------------------------------
 
+// StringView represents a C++ std::string_view object.
+type StringView = string
+
+// -----------------------------------------------------------------------------
+
 // String represents a C++ std::string object.
 type String struct {
 	Unused [24]byte