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-rw-r--r--src/webp/mux_types.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/webp/mux_types.h b/src/webp/mux_types.h
index 2fe81958..c585d208 100644
--- a/src/webp/mux_types.h
+++ b/src/webp/mux_types.h
@@ -79,7 +79,8 @@ static WEBP_INLINE void WebPDataClear(WebPData* webp_data) {
// Allocates necessary storage for 'dst' and copies the contents of 'src'.
// Returns true on success.
-static WEBP_INLINE int WebPDataCopy(const WebPData* src, WebPData* dst) {
+WEBP_NODISCARD static WEBP_INLINE int WebPDataCopy(const WebPData* src,
+ WebPData* dst) {
if (src == NULL || dst == NULL) return 0;
WebPDataInit(dst);
if (src->bytes != NULL && src->size != 0) {