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  • #22

Closed
Open
Opened Nov 03, 2017 by Michael Aaron Murphy@mmstickMaintainer

Overflow panics on multiplication and exponentiation

Created by: xTibor

Reproduction:

use calc::eval;
// ...
println!("{:?}", eval("2 ** 63"));
println!("{:?}", eval("3040000000 * 3040000000"));

Expected behavior: Getting a CalcError::WouldOverflow result.

Actual behavior: A panic with an 'attempt to multiply with overflow' message.

Build information:

  • calc: Latest version from crates.io (0.5.*)
  • rustc -V: rustc 1.23.0-nightly (e340996ff 2017-11-02)
  • System: KDE neon 5.11 (Ubuntu 16.04 LTS)

Misc: I encountered this issue via Ion's arithmetic expansions.

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Reference: redox-os/calc#22