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fix(math): preserve certified sums and complete MKL algebra

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KOKO\Mimi
2026-10-14 15:40:52 +09:00
parent 59c8e93b07
commit 590a93793f
9 changed files with 236 additions and 95 deletions
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tests/unit/math/sparse_matrix_test.cpp
+7 -4
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@@ -181,16 +181,19 @@ TEST(SparseAssembly, PreservesZeroShapesAndEmptyRows) {
}
}
TEST(SparseAssembly, KeepsIeeeNonfiniteResultsAndRecoversAfterBadRhs) {
TEST(SparseAssembly, RejectsNonfiniteRhsAndRecoversAfterFiniteOverflow) {
auto matrix = SparseMatrix::FromCoo(
2U, 2U, {{0U, 0U, 2.0, 0U, 0U}}, {{0U, 1U, 2U}, {0U, 1U}});
ASSERT_TRUE(matrix.HasValue());
Vector rhs{2U, (std::numeric_limits<double>::infinity)()};
const auto nonfinite = matrix.Value().Multiply(rhs);
EXPECT_TRUE(std::isinf(nonfinite[0U]));
EXPECT_TRUE(std::isnan(nonfinite[1U])); // Stored structural zero times Inf.
EXPECT_THROW(static_cast<void>(matrix.Value().Multiply(rhs)),
std::invalid_argument);
rhs[1U] = 4.0;
rhs[0U] = (std::numeric_limits<double>::max)();
EXPECT_TRUE(std::isinf(matrix.Value().Multiply(rhs)[0U]));
rhs[0U] = (std::numeric_limits<double>::quiet_NaN)();
EXPECT_THROW(static_cast<void>(matrix.Value().Multiply(rhs)),
std::invalid_argument);
EXPECT_THROW(static_cast<void>(matrix.Value().Multiply(Vector{1U})),
std::invalid_argument);
rhs[0U] = 3.0;