void(*)(void*)

這真的是要給人看的嗎

這就是個二維不知指到啥的陣列，前面兩個int應該有提示它的長度和大小....

<pre class="c" name="code">
void(*)(void*)

意思是一個“無傳回值的函數指標，參數為型態未知的指標”。

﹣無傳回值的函數指標：void(*)()
﹣參數為型態未知的指標：void*

這是傳統C的寫法，一般用在call back，如有用到，直接給一個函數即可，如沒用則給Null。

The fifth argument to sqlite3_bind_blob(), sqlite3_bind_text(), and sqlite3_bind_text16() is a destructor used to dispose of the BLOB or string after SQLite has finished with it. The destructor is called to dispose of the BLOB or string even if the call to sqlite3_bind_blob(), sqlite3_bind_text(), or sqlite3_bind_text16() fails. If the fifth argument is the special value SQLITE_STATIC, then SQLite assumes that the information is in static, unmanaged space and does not need to be freed. If the fifth argument has the value SQLITE_TRANSIENT, then SQLite makes its own private copy of the data immediately, before the sqlite3_bind_*() routine returns.

Constants Defining Special Destructor Behavior

typedef void (*sqlite3_destructor_type)(void*);
#define SQLITE_STATIC ((sqlite3_destructor_type)0)
#define SQLITE_TRANSIENT ((sqlite3_destructor_type)-1)

These are special values for the destructor that is passed in as the final argument to routines like sqlite3_result_blob(). If the destructor argument is SQLITE_STATIC, it means that the content pointer is constant and will never change. It does not need to be destroyed. The SQLITE_TRANSIENT value means that the content will likely change in the near future and that SQLite should make its own private copy of the content before returning.