win-error-codes 0.0.2

The numbers Windows reports failure in, as types: Win32 error codes, the signed LSTATUS, HRESULT and NTSTATUS, with an exact io::Error round trip for every Win32 code, including those above 2^31. No unsafe code and no native API surface.
Documentation 
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# Copyright (c) 2026 Mike Grier

[package]
name = "win-error-codes"
version = "0.0.2"
authors.workspace = true
edition.workspace = true
rust-version.workspace = true
license.workspace = true
repository.workspace = true
homepage.workspace = true
readme = "README.md"
description = "The numbers Windows reports failure in, as types: Win32 error codes, the signed LSTATUS, HRESULT and NTSTATUS, with an exact io::Error round trip for every Win32 code, including those above 2^31. No unsafe code and no native API surface."
keywords = ["windows", "error", "win32", "hresult", "errorcode"]
categories = ["os::windows-apis", "api-bindings"]

# Named under the workspace's `win-` prefix decision (DESIGN-NOTES.md at the repository root); see
# WE-D-2 in this crate's DESIGN-NOTES.md for why a crate that calls no Windows API takes it. No
# `-sys`: it layers over no call and contains no `unsafe`.

[dependencies]
# None. The crate is numbers, std's `io::Error`, and nothing more.

# `SetLastError`, to put a known code in the calling thread's last-error slot and show that
# `Win32Error::last` reads it. Test-only, and only on Windows: the types are portable, and this is
# the one test that needs the Windows thread state.
[target.'cfg(windows)'.dev-dependencies.windows-sys]
version = "0.61.2"
default-features = false
features = ["Win32_Foundation"]

[package.metadata.docs.rs]
# The `io::Error` bridge is `cfg(windows)`, so docs.rs must build on a Windows target or it would
# leave out the half of the crate that touches `std::io`.
default-target = "x86_64-pc-windows-msvc"
targets = ["x86_64-pc-windows-msvc", "aarch64-pc-windows-msvc"]