https://github.com/HTDerekLiu/surface_multigrid_code
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Tip revision: a827578755d864df68b103c71048c7da7a00ce59 authored by HTDerekLiu on 09 August 2021, 18:36:04 UTC
add a faster example
Tip revision: a827578
remove_vector_element.cpp
#include "remove_vector_element.h"

void remove_vector_element(
  const int idxToRemove,
  Eigen::VectorXd & vec)
  {
    unsigned int numEles = vec.size() - 1;

    if( idxToRemove < numEles )
        vec.segment(idxToRemove,numEles-idxToRemove) = vec.segment(idxToRemove+1,numEles-idxToRemove);

    vec.conservativeResize(numEles);
  }

void remove_vector_element(
  const int idxToRemove,
  Eigen::VectorXi & vec)
  {
    unsigned int numEles = vec.size() - 1;

    if( idxToRemove < numEles )
        vec.segment(idxToRemove,numEles-idxToRemove) = vec.segment(idxToRemove+1,numEles-idxToRemove);

    vec.conservativeResize(numEles);
  }


// template <class M>
// void remove_vector_element(
//   const int & idxToRemove,
//   M & vec)
//   {
//     unsigned int numEles = vec.size() - 1;

//     if( idxToRemove < numEles )
//         vec.segment(idxToRemove,numEles-idxToRemove) = vec.segment(idxToRemove+1,numEles-idxToRemove);

//     vec.conservativeResize(numEles);
//   }
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