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-rw-r--r--src/graph.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/graph.c b/src/graph.c
index ad435f5..9996e36 100644
--- a/src/graph.c
+++ b/src/graph.c
@@ -59,6 +59,7 @@
#include <stdio.h>
#include <stdlib.h>
+#include <string.h>
#include <setjmp.h>
#include <math.h>