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bug #1432: fix conservativeResize for non-relocatable scalar types. For those we need to by-pass realloc routines and fall-back to allocate as new - copy - delete. The remaining problem is that we don't have any mechanism to accurately determine whether a type is relocatable or not, so currently let's be super conservative using either RequireInitialization or std::is_trivially_copyable

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This commit is contained in:
Gael Guennebaud
2018-07-18 23:33:07 +02:00
parent 053ed97c72
commit 863580fe88
4 changed files with 60 additions and 11 deletions
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31
test/conservative_resize.cpp
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@@ -10,6 +10,7 @@
#include "main.h"
#include <Eigen/Core>
#include "AnnoyingScalar.h"
using namespace Eigen;
@@ -109,6 +110,30 @@ void run_vector_tests()
}
}
// Basic memory leak check with a non-copyable scalar type
template<int> void noncopyable()
{
typedef Eigen::Matrix<AnnoyingScalar,Dynamic,1> VectorType;
typedef Eigen::Matrix<AnnoyingScalar,Dynamic,Dynamic> MatrixType;
{
AnnoyingScalar::dont_throw = true;
int n = 50;
VectorType v0(n), v1(n);
MatrixType m0(n,n), m1(n,n), m2(n,n);
v0.setOnes(); v1.setOnes();
m0.setOnes(); m1.setOnes(); m2.setOnes();
VERIFY(m0==m1);
m0.conservativeResize(2*n,2*n);
VERIFY(m0.topLeftCorner(n,n) == m1);
VERIFY(v0.head(n) == v1);
v0.conservativeResize(2*n);
VERIFY(v0.head(n) == v1);
}
VERIFY(AnnoyingScalar::instances==0 && "global memory leak detected in noncopyable");
}
EIGEN_DECLARE_TEST(conservative_resize)
{
for(int i=0; i<g_repeat; ++i)
@@ -122,12 +147,16 @@ EIGEN_DECLARE_TEST(conservative_resize)
CALL_SUBTEST_4((run_matrix_tests<std::complex<float>, Eigen::RowMajor>()));
CALL_SUBTEST_4((run_matrix_tests<std::complex<float>, Eigen::ColMajor>()));
CALL_SUBTEST_5((run_matrix_tests<std::complex<double>, Eigen::RowMajor>()));
CALL_SUBTEST_6((run_matrix_tests<std::complex<double>, Eigen::ColMajor>()));
CALL_SUBTEST_5((run_matrix_tests<std::complex<double>, Eigen::ColMajor>()));
CALL_SUBTEST_1((run_vector_tests<int>()));
CALL_SUBTEST_2((run_vector_tests<float>()));
CALL_SUBTEST_3((run_vector_tests<double>()));
CALL_SUBTEST_4((run_vector_tests<std::complex<float> >()));
CALL_SUBTEST_5((run_vector_tests<std::complex<double> >()));
AnnoyingScalar::dont_throw = true;
CALL_SUBTEST_6(( run_vector_tests<AnnoyingScalar>() ));
CALL_SUBTEST_6(( noncopyable<0>() ));
}
}