From: Matthew Fernandez <matthew.fernandez@gmail.com>
Date: Sat, 8 Jan 2022 18:47:32 +0000 (-0800)
Subject: nearest_neighbor_graph: cast the result of calls to 'malloc'
X-Git-Tag: 3.0.0~74^2~5
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=e76dc5bf715a88bb48ded12528285aeeda66c792;p=graphviz

nearest_neighbor_graph: cast the result of calls to 'malloc'

This pre-emptively suppresses some `-fpermissive` warnings when transitioning
this code to C++ in an upcoming commit.

Gitlab: #2154
---

diff --git a/lib/mingle/nearest_neighbor_graph.c b/lib/mingle/nearest_neighbor_graph.c
index 1de680376..b74e3dbdf 100644
--- a/lib/mingle/nearest_neighbor_graph.c
+++ b/lib/mingle/nearest_neighbor_graph.c
@@ -32,9 +32,9 @@ SparseMatrix nearest_neighbor_graph(int nPts, int num_neigbors, double *x, doubl
   int k = num_neigbors;
 
   /* need to *2 as we do two sweeps of neighbors, so could have repeats */
-  irn =  MALLOC(sizeof(int)*nPts*k*2);
-  jcn =  MALLOC(sizeof(int)*nPts*k*2);
-  val =  MALLOC(sizeof(double)*nPts*k*2);
+  irn =  (int*)MALLOC(sizeof(int)*nPts*k*2);
+  jcn =  (int*)MALLOC(sizeof(int)*nPts*k*2);
+  val =  (double*)MALLOC(sizeof(double)*nPts*k*2);
 
 #ifdef HAVE_ANN
   nearest_neighbor_graph_ann(nPts, num_neigbors, eps, x, &nz, &irn, &jcn, &val);