c++ - 如何初始化包含 vector 作为成员的结构 vector ？

Question

我正在使用 Boost::assign 初始化一个结构 vector ，如下所示:

const std::vector<spriteInfo> Resources::hudObjectInfo = boost::assign::list_of
    ( spriteInfo(FALSE, SCORE_START_X, SCORE_START_Y, CENTER_ALIGN ))
    ( spriteInfo(FALSE, SCORE_START_X+NUM_DIFF, SCORE_START_Y, CENTER_ALIGN))
    ... /* and so on */
;

注意。 spriteInfo结构目前看起来像这样:

struct spriteInfo
{
    spriteInfo::spriteInfo(bool i, float x, float y, int align):
        invisible(i), x1(x), y1(y), alignment(align){}
    bool        invisible;
    float       x1;
    float       y1;
    int         alignment;
};

但是，我想制作一个 std::vector<int>作为 spriteInfo 的成员.

如果我这样做，上面的作业会是什么样子？即，您可以在将 vector 作为参数传递给构造函数的同时初始化 vector 吗？

Answer 1

应该这样做:

struct spriteInfo
{
    spriteInfo(bool i, float x, float y, int align, const std::vector<int> &v):
        invisible(i), x1(x), y1(y), alignment(align), something(v) {}
    bool             invisible;
    float            x1;
    float            y1;
    int              alignment;
    std::vector<int> something;
};

int main()
{
    const std::vector<spriteInfo> Resources::hudObjectInfo = boost::assign::list_of
        ( spriteInfo(FALSE, SCORE_START_X, SCORE_START_Y, CENTER_ALIGN, boost::assign::list_of(1)(2)(3)))
        ( spriteInfo(FALSE, SCORE_START_X+NUM_DIFF, SCORE_START_Y, CENTER_ALIGN, boost::assign::list_of(4)(5)(6)))
    ;
}