include/filepath: add iterators for components

Signed-off-by: Patrick Donnelly <pdonnell@ibm.com>
(cherry picked from commit a33faa7c413c4b166b267a1d4892d0ffdf01490c)

diff --git a/src/include/filepath.h b/src/include/filepath.h
index dcdfe76e7974b94b89c2dbe4416d36c7e6b44da4..03ae03ee239a3bcec99555bf06611787bb10482d 100644 (file)
--- a/src/include/filepath.h
+++ b/src/include/filepath.h
@@ -130,6 +130,24 @@ class filepath {
     return bits[i];
   }
 
+  auto begin() const {
+    if (bits.empty() && path.length() > 0) parse_bits();
+    return std::as_const(bits).begin();
+  }
+  auto rbegin() const {
+    if (bits.empty() && path.length() > 0) parse_bits();
+    return std::as_const(bits).rbegin();
+  }
+
+  auto end() const {
+    if (bits.empty() && path.length() > 0) parse_bits();
+    return std::as_const(bits).end();
+  }
+  auto rend() const {
+    if (bits.empty() && path.length() > 0) parse_bits();
+    return std::as_const(bits).rend();
+  }
+
   const std::string& last_dentry() const {
     if (bits.empty() && path.length() > 0) parse_bits();
     ceph_assert(!bits.empty());