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-rw-r--r--isl_output.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/isl_output.c b/isl_output.c
index d6851605..a1feb7f6 100644
--- a/isl_output.c
+++ b/isl_output.c
@@ -1680,6 +1680,9 @@ static __isl_give isl_printer *print_set_c(__isl_take isl_printer *p,
{
int i;
+ if (!set)
+ return isl_printer_free(p);
+
if (set->n == 0)
p = isl_printer_print_str(p, "0");