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Forbid mixing System with sytem allocator calls

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Christopher Durham 2022-09-03 16:47:12 -05:00 committed by GitHub
parent dec689432f
commit 69721defc2
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1 changed files with 4 additions and 1 deletions
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library/std/src/alloc.rs
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@ -68,7 +68,10 @@ pub use alloc_crate::alloc::*;
/// The default memory allocator provided by the operating system.
///
/// This is based on `malloc` on Unix platforms and `HeapAlloc` on Windows,
/// plus related functions.
/// plus related functions. However, it is not valid to mix use of the backing
/// system allocator with `System`, as this implementation may include extra
/// work, such as to serve alignment requests greater than the alignment
/// provided directly by the backing system allocator.
///
/// This type implements the `GlobalAlloc` trait and Rust programs by default
/// work as if they had this definition: