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libstd: rustdoc: correct note on fds 0/1/2 pre-main #137492

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Mar 16, 2025
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libstd: rustdoc: correct note on fds 0/1/2 pre-main #137492

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4 changes: 3 additions & 1 deletion library/std/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -174,7 +174,9 @@
//!
//! - after-main use of thread-locals, which also affects additional features:
//! - [`thread::current()`]
//! - before-main stdio file descriptors are not guaranteed to be open on unix platforms
//! - under UNIX, before main, file descriptors 0, 1, and 2 may be unchanged
//! (they are guaranteed to be open during main,
//! and are opened to /dev/null O_RDWR if they weren't open on program start)
//!
//!
//! [I/O]: io
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