From d4efb54284f0781aee40cb660712fa15256676df Mon Sep 17 00:00:00 2001
From: Andrew Plumb <andrew@plumb.org>
Date: Mon, 13 Feb 2012 11:23:18 -0500
Subject: Cleaned up unsigned int compiler warnings


diff --git a/src/PolySetCGALEvaluator.cc b/src/PolySetCGALEvaluator.cc
index c1bdea4..7afb359 100644
--- a/src/PolySetCGALEvaluator.cc
+++ b/src/PolySetCGALEvaluator.cc
@@ -116,7 +116,7 @@ PolySet *PolySetCGALEvaluator::evaluatePolySet(const ProjectionNode &node)
 				double z = ps3->polygons[i][j][2];
 				if (z != 0)
 					goto next_ps3_polygon_cut_mode;
-				if (conversion_grid.align(x, y) == i+1)
+				if ((unsigned) conversion_grid.align(x, y) == i+1)
 					goto next_ps3_polygon_cut_mode;
 				conversion_grid.data(x, y) = i+1;
 			}
diff --git a/src/dxfdata.cc b/src/dxfdata.cc
index 52493ac..65996d9 100644
--- a/src/dxfdata.cc
+++ b/src/dxfdata.cc
@@ -526,9 +526,9 @@ void DxfData::fixup_path_direction()
 			}
 		}
 		// rotate points if the path is in non-standard rotation
-		int b = min_x_point;
-		int a = b == 0 ? this->paths[i].indices.size() - 2 : b - 1;
-		int c = b == this->paths[i].indices.size() - 1 ? 1 : b + 1;
+		unsigned int b = min_x_point;
+		unsigned int a = b == 0 ? this->paths[i].indices.size() - 2 : b - 1;
+		unsigned int c = b == this->paths[i].indices.size() - 1 ? 1 : b + 1;
 		double ax = this->points[this->paths[i].indices[a]][0] - this->points[this->paths[i].indices[b]][0];
 		double ay = this->points[this->paths[i].indices[a]][1] - this->points[this->paths[i].indices[b]][1];
 		double cx = this->points[this->paths[i].indices[c]][0] - this->points[this->paths[i].indices[b]][0];
diff --git a/src/expr.cc b/src/expr.cc
index 66a0d11..671553c 100644
--- a/src/expr.cc
+++ b/src/expr.cc
@@ -86,8 +86,8 @@ Value Expression::evaluate(const Context *context) const
 				return *v1.vec[i];
 		}
 		if (v1.type == Value::STRING && v2.type == Value::NUMBER) {
-			int i = int(v2.num);
-			if (i >= 0 && i < v1.text.size())
+			unsigned int i = int(v2.num);
+			if (i < v1.text.size())
 				return Value(v1.text.substr(i, 1));
 		}
 		return Value();
diff --git a/src/primitives.cc b/src/primitives.cc
index feaa1a4..ce52550 100644
--- a/src/primitives.cc
+++ b/src/primitives.cc
@@ -530,7 +530,7 @@ sphere_next_r2:
 			{
 				dd.paths.push_back(DxfData::Path());
 				for (size_t j=0; j<this->paths.vec[i]->vec.size(); j++) {
-					int idx = this->paths.vec[i]->vec[j]->num;
+					unsigned int idx = this->paths.vec[i]->vec[j]->num;
 					if (idx < dd.points.size()) {
 						dd.paths.back().indices.push_back(idx);
 					}
-- 
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