---
libavutil/error.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/libavutil/error.h b/libavutil/error.h
index 71df4da..b357bfa 100644
--- a/libavutil/error.h
+++ b/libavutil/error.h
@@ -115,6 +115,9 @@ static inline char *av_make_error_string(char *errbuf,
size_t errbuf_size, int e
/**
* Convenience macro, the return value should be used only directly in
* function arguments but never stand-alone.
+ *
+ * @warning The macro uses compound literal which was introduced in C99. It may
+ * not work in C++.
*/
#define av_err2str(errnum) \
av_make_error_string((char[AV_ERROR_MAX_STRING_SIZE]){0},
AV_ERROR_MAX_STRING_SIZE, errnum)
--
2.9.5
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