Add missing stddef include for size_t

emersonknapp · emersonknapp · commit deec41a040c2 · 2023-02-21T16:26:45.000-08:00
Signed-off-by: Emerson Knapp &lt;emerson.b.knapp@gmail.com&gt;
diff --git a/include/rcutils/sha256.h b/include/rcutils/sha256.h
@@ -39,6 +39,7 @@ extern "C"
 #endif
 
 #include <stdint.h>
+#include <stddef.h>
 
 #include "rcutils/visibility_control.h"
 
