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-rw-r--r--util.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/util.h b/util.h
index b0f2658..7cbfa44 100644
--- a/util.h
+++ b/util.h
@@ -1,6 +1,8 @@
#ifndef _util_h
#define _util_h
+#include <stdio.h>
+
#define CHECK(cond, ...) do { if (!(cond)) { fprintf(stderr, __VA_ARGS__); exit(1); } } while(0)
#define ERROR(...) CHECK(false, __VA_ARGS__)