From 7a96a78fb12b3da0d9bf133cbecaeeabc2f459b5 Mon Sep 17 00:00:00 2001
From: pjrm <pjrm@users.sourceforge.net>
Date: Fri, 4 Jul 2008 04:56:42 +0000
Subject: [PATCH] Poly::shifted: simplify to discard mention of handling
 negative argument value.

---
 src/2geom/poly.cpp |  1 -
 src/2geom/poly.h   | 29 ++++++++---------------------
 2 files changed, 8 insertions(+), 22 deletions(-)

diff --git a/src/2geom/poly.cpp b/src/2geom/poly.cpp
index 5f7663957..1b9b0e568 100644
--- a/src/2geom/poly.cpp
+++ b/src/2geom/poly.cpp
@@ -151,7 +151,6 @@ Poly divide(Poly const &a, Poly const &b, Poly &r) {
     c.resize(k, 0.);
     
     for(unsigned i = k; i >= l; i--) {
-        assert(i >= 0);
         double ci = r.back()/b.back();
         c[i-l] += ci;
         Poly bb = ci*b;
diff --git a/src/2geom/poly.h b/src/2geom/poly.h
index f76bc3eee..2d7b79bfe 100644
--- a/src/2geom/poly.h
+++ b/src/2geom/poly.h
@@ -92,33 +92,20 @@ public:
         assert(result.size() == out_size);
         return result;
     }
-// equivalent to multiply by x^terms, discard negative terms
-    Poly shifted(unsigned terms) const {
+
+    /** Equivalent to multiply by x^terms. */
+    Poly shifted(unsigned const terms) const {
         Poly result;
-        // This was a no-op and breaks the build on x86_64, as it's trying
-        // to take maximum of 32-bit and 64-bit integers
-        //const unsigned out_size = std::max(unsigned(0), size()+terms);
-        const size_type out_size = size() + terms;
+        size_type const out_size = size() + terms;
         result.reserve(out_size);
 
-// By definition an unsigned can not be less than zero
-// TODO someone who understands the intent needs to correct this properly
-//         if(terms < 0) {
-//             for(unsigned i = 0; i < out_size; i++) {
-//                 result.push_back((*this)[i-terms]);
-//             }
-//         } else {
-            for(unsigned i = 0; i < terms; i++) {
-                result.push_back(0.0);
-            }
-            for(unsigned i = 0; i < size(); i++) {
-                result.push_back((*this)[i]);
-            }
-//         }
-        
+	result.resize(terms, 0.0);
+	result.insert(result.end(), this->begin(), this->end());
+
         assert(result.size() == out_size);
         return result;
     }
+
     Poly operator*(const Poly& p) const;
     
     template <typename T>
-- 
2.30.2