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Expose floating point environment and handle fp exceptions #1379

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boggle opened this issue Dec 23, 2011 · 5 comments
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Expose floating point environment and handle fp exceptions #1379

boggle opened this issue Dec 23, 2011 · 5 comments
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C-enhancement Category: An issue proposing an enhancement or a PR with one.

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@boggle
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boggle commented Dec 23, 2011

libmath provides a rich interface to deal with numerical exceptions, rounding modes, and the like.

We need to figure, if and how much of it we want to (e.g. as a resource that clears on destruction)

Useful references and any comments on this very welcome

Additionally:

  • decide if and when to fail in the presence of unhandled floating point exceptions
  • verify sane concurrency behavior
  • beyond complex numbers that is the last part of libmath that needs wrapping
@catamorphism
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Not a backwards-compatibility thing. Nominating for milestone 3, feature-complete.

@graydon
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graydon commented May 30, 2013

accepted for feature-complete milestone

@bblum
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bblum commented Jul 26, 2013

Does libmath use global state for tracking anything?

@catamorphism
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Not 1.0

@thestinger
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Closing in favour of #10186.

coastalwhite pushed a commit to coastalwhite/rust that referenced this issue Aug 5, 2023
@taiki-e
std_detect: Support run-time detection of FEAT_LSE2 on aarch64 BSD (r…
f2ce94c 
…ust-lang#1379)
bjorn3 added a commit to bjorn3/rust that referenced this issue Oct 24, 2023
@bjorn3
Implement all llvm intrinsics necessary for the image crate
a558968 
Fixes rust-lang#1379
celinval added a commit to celinval/rust-dev that referenced this issue Jun 4, 2024
@celinval
Fix codegen of skipped functions (rust-lang#1382)
248fdb8 
We currently skip code generation of a few functions like
ArgumentV1::as_usize(). We generate an unsuppported check instead.
However, we still need to declare the parameters otherwise we end up
with invalid symbol tables where the parameters are missing.

Fixes rust-lang#1379
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@graydon @boggle @catamorphism @thestinger @bblum