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-rw-r--r--sord/sord.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/sord/sord.h b/sord/sord.h
index 587456b..8d31085 100644
--- a/sord/sord.h
+++ b/sord/sord.h
@@ -91,7 +91,7 @@ typedef struct SordNodeImpl SordNode;
Nodes are ordered (S P O G). The ID of the default graph is 0.
*/
-typedef SordNode* SordQuad[4];
+typedef const SordNode* SordQuad[4];
/**
Index into a SordQuad.
@@ -220,7 +220,7 @@ sord_new_literal_counted(SordWorld* world,
*/
SORD_API
SordNode*
-sord_node_copy(SordNode* node);
+sord_node_copy(const SordNode* node);
/**
Free a node (i.e. drop a reference).