std::vector<PointT,Eigen::aligned_allocator<PointT>>points;std::vector<Eigen::Matrix3d,Eigen::aligned_allocator<Eigen::Matrix3d>> 才发现,原来vector有两个模板形参,具体定义如下,,_Tp 是元素类型, _Alloc 负责提供 vector 需要用到的动态内存。其中 _Alloc 参数有默认值,一般的使用(如int, float等)不...
template< class T, class Allocator = std::allocator<T>> class vector;有两个模板参数，T 是元素类型，而 Allocator 负责提供 vector 需要用到的动态内存。其中 Allocator 参数有默认值，一般的使用不需要指定这个参数。但有时对内存有特殊需求，就需要提供自己定义的内存管理类。把容器操作和...
The situation with std::vector was even worse (explanation below) so we had to specialize it for theEigen::aligned_allocatortype. In practice youmustuse theEigen::aligned_allocator(not another aligned allocator),and #include <Eigen/StdVector>. Here is an example: #include<Eigen/StdVector> /...
StdVector.h:69:9: error: partial specialization of ‘std::vector<T, Eigen::aligned_allocator<U> >’ after instantiation of ‘std::vector<Eigen::Matrix<float, 4, 4>, Eigen::aligned_allocator<Eigen::Matrix<float, 4, 4> > >’ [-fpermissive] class vector<T,EIGEN_ALIGNED_ALLOCATOR<T> ...
tbb::concurrent_vector<:CACHE_ALIGNED_ALLOCATOR><:DATA1D>,tbb::cache_aligned_allocator<:CACHE_ALIGNED_ALLOCATOR><:DATA1D>> >::push_back(myNameSpace::data1D&) Hi, it seems that you're declaring a vector of tbb::cache_aligned_allocators... First template parameter shoul...
Does the memory you get back always end up as properly aligned data?Because of the nature of vector, it uses dynamic memory allocation, (operator new) to allocate this memory, and the default allocator for new is malloc. If you then dig into the documentation a bit, you will find the ...
std::aligned_storage<size,size>有一个嵌套的typedeftype，它具有您想要的属性。你想要的是std::vecto...
在系统没有对齐的内存分配函数的情况下,也能保证btAlignedAllocator::acllocate返回的地址是按特定字节对齐的。...btAlignedObjectArray——bullet的动态数组 btAlignedObjectArray的作用与STL的vector类似(下面称std::vector),都是动态数组。...std::allocator的思路是:首先实现allocator,然后将allocator作为模板...
std::aligned_storage<size,size>有一个嵌套的typedeftype，它具有您想要的属性。你想要的是std::vecto...
intmain(intargc,char** argv){staticconstsize_tK =3;typedefdoubleScalar;typedefEigen::Matrix<Scalar,1, K> Feature;typedefstd::vector<Feature, Eigen::aligned_allocator<Feature> > FeatureVector;FeatureVectorfeatures(1000*K); FeatureVector centers;std::vector<unsignedint> membership; ...