Question

I imported sqlite3.c sqlite3.h into my project – and I’m having trouble compiling it.

Errors:

1>c:\...\storage_manager.h(7) : error C2079: 'storage_manager::db' uses undefined struct 'sqlite3'     1>storage_manager.cpp     1>c:\...\storage_manager.h(7) : error C2079: 'storage_manager::db' uses undefined struct 'sqlite3'     1>ui_manager.cpp     1>c:\...\storage_manager.h(7) : error C2079: 'storage_manager::db' uses undefined struct 'sqlite3' 

Code:

#pragma once #include 'sqlite3.h' class storage_manager {     sqlite3 db;     sqlite3** db_pp; public:     void open()     {         sqlite3_open('data.db', db_pp);     } }; 

Answer 1

I just noticed you try to create a stack variable of type sqlite3 called db. That won’t work, as sqlite3 is a handle and you can only have a pointer variable. You need then to pass the address of that pointer variable to sqlite3_open.

@Neil Butterworth spotted it a bit earlier than me 🙂