问题遇到的现象和发生背景
C++ 如何将vector<vector> 写入到bin文件?error: invalid cast from type 'std::vector<std::vector >' to type 'char*'
问题相关代码,请勿粘贴截图
using namespace std;
ofstream ofs;
ofs.open("./out.bin",ios::out | ios::binary);
// 560*96的vector
vector<vector<float>> tar_data;
int f_elem = 0;
for (int i=0;i<560*96;i++)
{
vector<float> data;
int v = i % 96;
if (v == 0) {f_elem++;}
data = {0.0,2.34255,3.52111,float(v),float(f_elem)};
tar_data.push_back(data);
}
ofs.write(reinterpret_cast<char *>(tar_data), sizeof(tar_data));
//ofs.flush();
ofs.close()
运行结果及报错内容
error: invalid cast from type 'std::vector<std::vector >' to type 'char'*
编译时报错