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-rw-r--r--coroutine/ucontext/Context.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/coroutine/ucontext/Context.h b/coroutine/ucontext/Context.h
index 2b2a593793..797108642b 100644
--- a/coroutine/ucontext/Context.h
+++ b/coroutine/ucontext/Context.h
@@ -1,3 +1,6 @@
+#ifndef COROUTINE_UCONTEXT_CONTEXT_H
+#define COROUTINE_UCONTEXT_CONTEXT_H 1
+
/*
* This file is part of the "Coroutine" project and released under the MIT License.
*
@@ -68,3 +71,5 @@ static inline void coroutine_destroy(struct coroutine_context * context)
context->state.uc_stack.ss_size = 0;
context->from = NULL;
}
+
+#endif /* COROUTINE_UCONTEXT_CONTEXT_H */