c++ - 使用大括号括起来的初始化列表初始化结构 vector

Question

我像这样初始化普通类型的 vector :

vector<float> data = {0.0f, 0.0f};

但是当我使用结构而不是普通类型时

struct Vertex
{
    float position[3];
    float color[4];
};
vector<Vertex> data = {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f, 0.0f}};

我收到错误 could not convert '{{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f, 0.0f}}' from '<brace-enclosed initializer list>' to 'std::vector<Vertex>' .这有什么问题吗？

Answer 1

缺少一组 {}:

std::vector<Vertex> data =
{ // for the vector
    { // for a Vertex
        {0.0f, 0.0f, 0.0f},      // for array 'position'
        {0.0f, 0.0f, 0.0f, 0.0f} // for array 'color'
    },
    {
        {0.0f, 0.0f, 0.0f},
        {0.0f, 0.0f, 0.0f, 0.0f}
    }
};