错误：未定义引用`sqlite3_open' [英] Error: undefined reference to `sqlite3_open'

问题描述

我想开始使用SQLite的C ++ API。

I'm trying to get started with the C++ API for SQLite.

#include <iostream>
#include <sqlite3.h>

using namespace std;

int main()
{
    sqlite3 *db;
    if (sqlite3_open("ex1.db", &db) == SQLITE_OK)
        cout << "Opened db successfully\n";
    else
        cout << "Failed to open db\n";

    return 0;
}   

使用命令g ++ main.cpp进行编译时会出现以下错误：

Compiling this using the command "g++ main.cpp" gives the following error:

/tmp/ccu8sv4b.o: In function `main':
main.cpp:(.text+0x64): undefined reference to `sqlite3_open'
collect2: ld returned 1 exit status

出错了？没有sqlite3正确安装在服务器上我正在编译这个？

What could have gone wrong? Hasn't sqlite3 properly installed in the server I'm compiling this in?

推荐答案

您需要链接sqlite3库您的计划：

You need to link the sqlite3 library along with your program:

g++ main.cpp -lsqlite3

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