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Replace std::error::Error with core_error::Error #334

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Replace std::error::Error with core_error::Error #334

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Commits on Oct 27, 2019

  1. Replace std::error::Error with core_error::Error 

    To promote compatibility across error-handling crates, use
core_error::Error as the StdError trait. When using the std feature,
core_error simply reexports the std crate. Otherwise, it provide its own
Error trait with all the std-only features removed, and implements the
trait on all the error structs found in libcore.

This PR brings two immediate benefits to no_std users: It makes the Compat
struct into a proper compatibility layer, and it makes the core errors
compatible with the Fail trait.
    @roblabla
    roblabla committed Oct 27, 2019
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Commits on Nov 2, 2019

  1. Add some documentation about core-error

    @roblabla
    roblabla committed Nov 2, 2019
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Commits on Nov 22, 2019

  1. Fix compile error on old rust versions

    @roblabla
    roblabla committed Nov 22, 2019
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