comment improvements.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133213 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/Frontend/HeaderSearchOptions.h b/include/clang/Frontend/HeaderSearchOptions.h
index 4bdbb45..d6d7019 100644
--- a/include/clang/Frontend/HeaderSearchOptions.h
+++ b/include/clang/Frontend/HeaderSearchOptions.h
@@ -17,10 +17,12 @@
namespace frontend {
/// IncludeDirGroup - Identifiers the group a include entry belongs to, which
- /// represents its relative positive in the search list.
+ /// represents its relative positive in the search list. A #include of a ""
+ /// path starts at the -iquote group, then searches the Angled group, then
+ /// searches the system group, etc.
enum IncludeDirGroup {
- Quoted = 0, ///< '#include ""' paths. Think 'gcc -iquote'.
- Angled, ///< Paths for both '#include ""' and '#include <>'. ('-I')
+ Quoted = 0, ///< '#include ""' paths, added by'gcc -iquote'.
+ Angled, ///< Paths for '#include <>' added by '-I'.
System, ///< Like Angled, but marks system directories.
CXXSystem, ///< Like System, but only used for C++.
After ///< Like System, but searched after the system directories.