From 6b2d4701bb0781c6bd8ccbd959e705bedb4a3730 Mon Sep 17 00:00:00 2001
From: Niels Dekker <N.Dekker@lumc.nl>
Date: Tue, 4 Apr 2023 21:28:50 +0200
Subject: [PATCH] COMP: Fix `[[nodiscard]]` warnings in PolyLineParametricPath1
 example

Fixed Mac/Darwin Clang warnings saying:

> warning: ignoring return value of function declared with 'nodiscard' attribute [-Wunused-result]

From https://open.cdash.org/viewBuildError.php?type=1&buildid=8600267
---
 .../Path/PolyLineParametricPath1.cxx                   | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/Examples/DataRepresentation/Path/PolyLineParametricPath1.cxx b/Examples/DataRepresentation/Path/PolyLineParametricPath1.cxx
index c7124dfcc2f..da6332dde76 100644
--- a/Examples/DataRepresentation/Path/PolyLineParametricPath1.cxx
+++ b/Examples/DataRepresentation/Path/PolyLineParametricPath1.cxx
@@ -102,9 +102,15 @@ main(int argc, char * argv[])
   point[0] = origin[0] + spacing[0] * size[0];
   point[1] = origin[1] + spacing[1] * size[1];
 
-  image->TransformPhysicalPointToContinuousIndex(origin, cindex);
+  using ContinuousIndexValueType = ContinuousIndexType::ValueType;
+
+  cindex =
+    image->TransformPhysicalPointToContinuousIndex<ContinuousIndexValueType>(
+      origin);
   path->AddVertex(cindex);
-  image->TransformPhysicalPointToContinuousIndex(point, cindex);
+  cindex =
+    image->TransformPhysicalPointToContinuousIndex<ContinuousIndexValueType>(
+      point);
   path->AddVertex(cindex);
   // Software Guide : EndCodeSnippet