I'm trying to make some utils for using with sqlite databases. For that I create sqlite3_ut.h and sqlite3_ut.c files
sqlite_ut.h
#ifndef sqlite3_ut_h
#define sqlite3_ut_h
#include <stdio.h>
#include "sqlite3.h"
int drop_table(sqlite3 handle);
#endif
sqlite_ut.c
int drop_table(sqlite3 handle)
{
int dropped = 0;
printf("Begin Drop\n");
sqlite3_exec(handle, "BEGIN;", NULL, NULL, NULL);
sqlite3_stmt *droptab;
if (sqlite3_prepare_v2(handle, "DROP TABLE mytable;", -1, &droptab, 0) != SQLITE_OK)
printf("db error: %s\n", sqlite3_errmsg(handle));
if(droptab)
{
sqlite3_step(droptab);
dropped = 1;
}
else
printf("Error: drop_table");
sqlite3_finalize(droptab);
sqlite3_exec(handle, "COMMIT;", NULL, NULL, NULL);
printf("End Drop\n");
return dropped;
}
sqlite_ut.h is included in main file.
sqlite3 *db;
int rc = sqlite3_open("m_test.db", &db);
if (rc)...
//error here
int dropped = drop_table(db);
Obviously, I can't transfer handle of opened database properly to drop_table function which is of sqlite3 type.
How to do that with suggested program cofiguration?
SQLite3 handles are of type sqlite3 *
, not sqlite3
. Redefine drop_table
as follows:
int drop_table(sqlite3 *handle) { … }
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