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113 lines
3.5 KiB
113 lines
3.5 KiB
// This file is part of Eigen, a lightweight C++ template library
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// for linear algebra.
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//
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// Copyright (C) 2011 Gael Guennebaud <gael.guennebaud@inria.fr>
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//
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// This Source Code Form is subject to the terms of the Mozilla
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// Public License v. 2.0. If a copy of the MPL was not distributed
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// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
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// Various sanity tests with exceptions:
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// - no memory leak when a custom scalar type trow an exceptions
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// - todo: complete the list of tests!
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#define EIGEN_STACK_ALLOCATION_LIMIT 100000000
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#include "main.h"
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struct my_exception
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{
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my_exception() {}
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~my_exception() {}
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};
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class ScalarWithExceptions
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{
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public:
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ScalarWithExceptions() { init(); }
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ScalarWithExceptions(const float& _v) { init(); *v = _v; }
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ScalarWithExceptions(const ScalarWithExceptions& other) { init(); *v = *(other.v); }
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~ScalarWithExceptions() {
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delete v;
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instances--;
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}
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void init() {
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v = new float;
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instances++;
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}
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ScalarWithExceptions operator+(const ScalarWithExceptions& other) const
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{
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countdown--;
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if(countdown<=0)
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throw my_exception();
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return ScalarWithExceptions(*v+*other.v);
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}
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ScalarWithExceptions operator-(const ScalarWithExceptions& other) const
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{ return ScalarWithExceptions(*v-*other.v); }
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ScalarWithExceptions operator*(const ScalarWithExceptions& other) const
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{ return ScalarWithExceptions((*v)*(*other.v)); }
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ScalarWithExceptions& operator+=(const ScalarWithExceptions& other)
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{ *v+=*other.v; return *this; }
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ScalarWithExceptions& operator-=(const ScalarWithExceptions& other)
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{ *v-=*other.v; return *this; }
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ScalarWithExceptions& operator=(const ScalarWithExceptions& other)
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{ *v = *(other.v); return *this; }
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bool operator==(const ScalarWithExceptions& other) const
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{ return *v==*other.v; }
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bool operator!=(const ScalarWithExceptions& other) const
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{ return *v!=*other.v; }
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float* v;
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static int instances;
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static int countdown;
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};
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ScalarWithExceptions real(const ScalarWithExceptions &x) { return x; }
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ScalarWithExceptions imag(const ScalarWithExceptions & ) { return 0; }
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ScalarWithExceptions conj(const ScalarWithExceptions &x) { return x; }
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int ScalarWithExceptions::instances = 0;
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int ScalarWithExceptions::countdown = 0;
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#define CHECK_MEMLEAK(OP) { \
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ScalarWithExceptions::countdown = 100; \
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int before = ScalarWithExceptions::instances; \
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bool exception_thrown = false; \
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try { OP; } \
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catch (my_exception) { \
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exception_thrown = true; \
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VERIFY(ScalarWithExceptions::instances==before && "memory leak detected in " && EIGEN_MAKESTRING(OP)); \
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} \
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VERIFY(exception_thrown && " no exception thrown in " && EIGEN_MAKESTRING(OP)); \
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}
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void memoryleak()
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{
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typedef Eigen::Matrix<ScalarWithExceptions,Dynamic,1> VectorType;
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typedef Eigen::Matrix<ScalarWithExceptions,Dynamic,Dynamic> MatrixType;
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{
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int n = 50;
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VectorType v0(n), v1(n);
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MatrixType m0(n,n), m1(n,n), m2(n,n);
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v0.setOnes(); v1.setOnes();
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m0.setOnes(); m1.setOnes(); m2.setOnes();
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CHECK_MEMLEAK(v0 = m0 * m1 * v1);
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CHECK_MEMLEAK(m2 = m0 * m1 * m2);
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CHECK_MEMLEAK((v0+v1).dot(v0+v1));
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}
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VERIFY(ScalarWithExceptions::instances==0 && "global memory leak detected in " && EIGEN_MAKESTRING(OP)); \
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}
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void test_exceptions()
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{
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CALL_SUBTEST( memoryleak() );
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}
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