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crates.io · #1908 most downloaded on crates.io
Casts and checked casts.
Last release 8 months ago
19 Jan 2026
Ships unpredictably
gaps range from 3 weeks to 3.5 years
Nearly every release is documented
notes for 11 of 12 stable releases
Nothing withdrawn
no release was ever pulled
7 years old
12 releases · first in 2019
…and [UnwrappedCastFrom][ucf-1-3], which will be deprecated in version 1.4.0.
StrictCast, StrictAs and
StrictCastFrom traits were added to replace
UnwrappedCast, UnwrappedAs and
UnwrappedCastFrom, which will be deprecated in version 1.4.0.strict_cast function was added to replace
unwrapped_cast, which will be deprecated in version 1.4.0.nightly-float was added.One column per quarter.
Fix build issue using rustc 1.64.0-nightly under Windows.
The following traits were added, which can be used for constraints in the opposite direction to the other cast traits.
Now the [Debug] implementation for [Round][r-1-1] outputs the value only without “Round()” around it.
Debug] implementation for [Round][r-1-1] outputs the value only
without “Round()” around it.The track_caller attribute is now applied to panicking functions if supported by the compiler.
track_caller attribute is now applied to panicking functions
if supported by the compiler.Unwrapped casts were added, which panic on overflow even when debug assertions are not enabled.
All deprecated items were removed.
Static casts were deprecated as their use case was unclear.
The behavior of static casts was changed: now they return Option, but an implementation should either always return Some or always return None.
Option, but an implementation should either always return Some
or always return None.
The old *As traits were renamed to *Cast.
*As traits were renamed to *Cast.
*As traits were added.Conversions between integers and floating-point numbers.
Round.Nothing published for this version
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