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Basic void pointer check

Only manage to warn on non-pointers

--- a/include/opus_defines.h

+++ b/include/opus_defines.h

@@ -187,11 +187,13 @@

 #define __opus_check_uint_ptr(ptr) (ptr)

 #define __opus_check_uint8_ptr(ptr) (ptr)

 #define __opus_check_val16_ptr(ptr) (ptr)

+#define __opus_check_void_ptr(ptr) (ptr)

 #else

 #define __opus_check_int_ptr(ptr) ((ptr) + ((ptr) - (opus_int32*)(ptr)))

 #define __opus_check_uint_ptr(ptr) ((ptr) + ((ptr) - (opus_uint32*)(ptr)))

 #define __opus_check_uint8_ptr(ptr) ((ptr) + ((ptr) - (opus_uint8*)(ptr)))

 #define __opus_check_val16_ptr(ptr) ((ptr) + ((ptr) - (opus_val16*)(ptr)))

+#define __opus_check_void_ptr(x) ((void)((void *)0 == (x)), (x))

 #endif

 /** @endcond */

@@ -644,7 +646,7 @@

 /** Provide external DNN weights from binary object (only when explicitly built without the weights)

   * @hideinitializer */

-#define OPUS_SET_DNN_BLOB(data, len) OPUS_SET_DNN_BLOB_REQUEST, (data), __opus_check_int(len)

+#define OPUS_SET_DNN_BLOB(data, len) OPUS_SET_DNN_BLOB_REQUEST, __opus_check_void_ptr(data), __opus_check_int(len)

 /**@}*/

-- 

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