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-rw-r--r--src/RobinBoundary.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/RobinBoundary.c b/src/RobinBoundary.c
index d8e309b..323ce07 100644
--- a/src/RobinBoundary.c
+++ b/src/RobinBoundary.c
@@ -165,7 +165,8 @@ CCTK_INT BndRobin(const cGH *GH, CCTK_INT num_vars, CCTK_INT *vars,
gdim = CCTK_GroupDimI(gi);
if (gdim > max_gdim)
{
- width_alldirs = realloc(width_alldirs, 2*gdim*sizeof(CCTK_INT));
+ width_alldirs = (CCTK_INT *)
+ realloc(width_alldirs, 2*gdim*sizeof(CCTK_INT));
max_gdim = gdim;
}