eclipse c++ 编译错误：在有符号和无符号整数表达式间比较 warnings being treated as errors

报错内容：

eclipse c++ 编译错误：在有符号和无符号整数表达式间比较

warnings being treated as errors

报错代码：

for (int i = 0;i < m_vecFruits.size();i++) {
cout << m_vecFruits[i] << endl;
}

解决办法1：

报错文件右键 -> Properties -> C/C++ Build -> Setting -> Warnings -> Warnings as errors(-Werror)

去掉勾选

解决办法2：

代码修改为

for (unsigned int i = 0;i < m_vecFruits.size();i++) {
cout << m_vecFruits[i] << endl;
}