void sqlite3_snapshot_free(sqlite3_snapshot*);
The sqlite3_snapshot_free(P) interface destroys sqlite3_snapshot P. The application must eventually free every sqlite3_snapshot object using this routine to avoid a memory leak.
The sqlite3_snapshot_free() interface is only available when the SQLITE_ENABLE_SNAPSHOT compile-time option is used.
See also lists of Objects, Constants, and Functions.
SQLite is in the Public Domain.
https://sqlite.org/c3ref/snapshot_free.html