Question

我想在我的c ++ - Code中使用SQLite，所以我包含了SQLite3。当我在外部* .exe中使用以下代码时，它没有任何问题：

void create_Database(char * file_name)
{
    std::ofstream debug("C:\\Users\\Roland-User\\Desktop\\Debug.txt");
    //const std::string&filename = file_name;
    std::string filename = "C:\\Users\\Roland-User\\Desktop\\data";
    std::string appendix = ".database";
    std::string file = filename + appendix;
    debug << "Creating database\n";
    sqlite3 *db;
    char *zErrMsg = 0;
    int rc;
    char * sql;
    rc = sqlite3_open(file.c_str(), &db);
    if(rc)
        exit(-1);
    sql = "CREATE TABLE DATABASE(HEADERDATA INT, WAVENUMBER INT, POSX INT, POSY INT, COUNT INT);";
    rc = sqlite3_exec(db, sql, callback, 0, &zErrMsg);
    if(rc == 1)
    {
        sql = "DROP DATABASE DATABASE;";
        rc = sqlite3_exec(db, sql, callback, 0, &zErrMsg);
        sqlite3_free(zErrMsg);
        sql = "DROP TABLE DATABASE;";
        rc = sqlite3_exec(db, sql, callback, 0, &zErrMsg);
        sqlite3_free(zErrMsg);
        debug << "Having to drop database!\n";
    };
    sql = "CREATE TABLE DATABASE(HEADERDATA INT, WAVENUMBER INT, POSX INT, POSY INT, COUNT INT);";
    rc = sqlite3_exec(db, sql, callback, 0, &zErrMsg);
    if(rc!=SQLITE_OK)
    {
        debug << "Still there are errors, I am confused!\n";
        debug << "With error codes: " << rc << '\n';
        sqlite3_free(zErrMsg);
        exit(-1);
    };
    debug << "Finished with creating database\n";
    debug.close();
    sqlite3_close(db);
};

但是当我在DLL中插入这段代码时，我的第二次检查总是出错（我得到调试信息：“有错误代码：”）。我总是得到错误代码1.我怎么能解决这个问题，我做错了什么？非常感谢你！

sqlite3-Code中的错误

0 个答案: