diff -r 1f4f01870c1e -r 4fd76139b69e lemon/path.h
--- a/lemon/path.h	Sat Feb 17 23:44:15 2018 +0100
+++ b/lemon/path.h	Sat Feb 17 23:44:32 2018 +0100
@@ -182,6 +182,15 @@
       return ArcIt(*this, n);
     }
 
+    /// \brief The n-th arc.
+    ///
+    /// Gives back the n-th arc. This operator is just an alias for \ref nth(),
+    /// it runs in O(1) time.
+    /// \pre \c n is in the range <tt>[0..length() - 1]</tt>.
+    const Arc& operator[](int n) const {
+      return nth(n);
+    }
+
     /// \brief The first arc of the path
     const Arc& front() const {
       return head.empty() ? tail.front() : head.back();
@@ -402,6 +411,15 @@
       return ArcIt(*this, n);
     }
 
+    /// \brief The n-th arc.
+    ///
+    /// Gives back the n-th arc. This operator is just an alias for \ref nth(),
+    /// it runs in O(1) time.
+    /// \pre \c n is in the range <tt>[0..length() - 1]</tt>.
+    const Arc& operator[](int n) const {
+      return data[n];
+    }
+
     /// \brief The first arc of the path.
     const Arc& front() const {
       return data.front();
@@ -618,6 +636,15 @@
       return ArcIt(*this, node);
     }
 
+    /// \brief The n-th arc.
+    ///
+    /// Looks for the n-th arc in O(n) time. This operator is just an alias
+    /// for \ref nth().
+    /// \pre \c n is in the range <tt>[0..length() - 1]</tt>.
+    const Arc& operator[](int n) const {
+      return nth(n);
+    }
+
     /// \brief Length of the path.
     int length() const {
       int len = 0;
@@ -966,6 +993,15 @@
       return ArcIt(*this, n);
     }
 
+    /// \brief The n-th arc.
+    ///
+    /// Gives back the n-th arc. This operator is just an alias for \ref nth(),
+    /// it runs in O(1) time.
+    /// \pre \c n is in the range <tt>[0..length() - 1]</tt>.
+    const Arc& operator[](int n) const {
+      return _arcs[n];
+    }
+
     /// \brief The length of the path.
     int length() const { return len; }