Finding Bugs using Path-Sensitive Static Analysis-1; if (y + x > 9) return 0; return a[y - x]; } Queries Given: is true?Fourier-Motzkin eliminationConstraints17 min -> 2h 54m 😱#include_When_(x > 0, _Post_satisfies_(return Barto • Finding bugs using path-sensitive static analysis – Gabor Horvath (online 29th)Thanks!Fourier-Motzkin eliminationResourcesImproved Null Pointer Dereference Detection in Visual Studio 2 022 version 0 码力 | 35 页 | 14.13 MB | 6 月前3
Delivering safe C++subscripted pointer is in-range (often a run-time check) • That • Implies range checking and elimination of dangling pointers (“memory safety”) • Is just what C++ requires • Is what most programmers subscripted pointer is in-range (often a run-time check) • That • Implies range checking and elimination of dangling pointers (“memory safety”) • Is just what C++ requires • Is what most programmers0 码力 | 74 页 | 2.72 MB | 6 月前3
Building a Coroutine-Based Job System Without Standard Librarywaits on the job, the job will not be scheduled. 115116 COROUTINE LIFETIME Multiple (necessary)elimination points: • ~token() – no one is waiting for the result • awaitable dtor for token::operator co_await system can impose different mechanism Credit to Arne Schober(@Khipu_Kamayuq) Multiple (necessary)elimination points: • ~token() – no one is waiting for the result • dtor of awaitable for token::operator0 码力 | 120 页 | 2.20 MB | 6 月前3
The DevOps Handbookfor items that are causing disproportionate amounts of failure and unplanned work; plan for elimination or replacement iii. Create “buoys, not boundaries”; navigate the channel, mark the channel, and0 码力 | 9 页 | 25.13 KB | 5 月前3
Shared Libraries-fdata-sections • Optimizations • Identical Code Folding: /OPT:ICF, -icf=all, -icf=safe • Dead Code Elimination: /OPT:REF, -fvtable-gc, --gc-section • Linker scripts 54Resources • Ulrich Drepper: “How0 码力 | 69 页 | 1.40 MB | 6 月前3
Just-in-Time Compilation - J F Bastien - CppCon 2020itself adds fast algorithms for escape analysis, automatic object inlining, and array bounds check elimination. Where HotSpot is really amazing is in putting all of these things together in a very complex0 码力 | 111 页 | 3.98 MB | 6 月前3
julia 1.13.0 DEVOtherwise, the default RowMaximum pivoting strategy should be generally preferred in Gaussian elimination. Note that the element type of the matrix must admit an iszero method. LinearAlgebra.RowMaximum floating-point approximation of the determinant, even for integer matrices, typically via Gaussian elimination. Julia includes an exact algorithm for integer determinants (the Bareiss algorithm), but only ALGEBRA 1620 ldiv!(A::Tridiagonal, B::AbstractVecOrMat) -> B Compute A \ B in-place by Gaussian elimination with partial pivoting and store the result in B, returning the result. In the process, the diagonals0 码力 | 2058 页 | 7.45 MB | 3 月前3
Julia 1.12.0 RC1Otherwise, the default RowMaximum pivoting strategy should be generally preferred in Gaussian elimination. Note that the element type of the matrix must admit an iszero method. LinearAlgebra.RowMaximum floating-point approximation of the determinant, even for integer matrices, typically via Gaussian elimination. Julia includes an exact algorithm for integer determinants (the Bareiss algorithm), but only 1.5 2.0 ldiv!(A::Tridiagonal, B::AbstractVecOrMat) -> B Compute A \ B in-place by Gaussian elimination with partial pivoting and store the result in B, returning the result. In the process, the diagonals0 码力 | 2057 页 | 7.44 MB | 3 月前3
Julia 1.12.0 Beta4Otherwise, the default RowMaximum pivoting strategy should be generally preferred in Gaussian elimination. Note that the element type of the matrix must admit an iszero method. LinearAlgebra.RowMaximum floating-point approximation of the determinant, even for integer matrices, typically via Gaussian elimination. Julia includes an exact algorithm for integer determinants (the Bareiss algorithm), but only 1.5 2.0 ldiv!(A::Tridiagonal, B::AbstractVecOrMat) -> B Compute A \ B in-place by Gaussian elimination with partial pivoting and store the result in B, returning the result. In the process, the diagonals0 码力 | 2057 页 | 7.44 MB | 3 月前3
Julia 1.12.0 Beta3Otherwise, the default RowMaximum pivoting strategy should be generally preferred in Gaussian elimination. Note that the element type of the matrix must admit an iszero method. LinearAlgebra.RowMaximum floating-point approximation of the determinant, even for integer matrices, typically via Gaussian elimination. Julia includes an exact algorithm for integer determinants (the Bareiss algorithm), but only 1.5 2.0 ldiv!(A::Tridiagonal, B::AbstractVecOrMat) -> B Compute A \ B in-place by Gaussian elimination with partial pivoting and store the result in B, returning the result. In the process, the diagonals0 码力 | 2057 页 | 7.44 MB | 3 月前3
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