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Replace std::os::raw::c_ssize_t with std::os::raw::c_ptrdiff_t #90421

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Nov 3, 2021
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Replace std::os::raw::c_ssize_t with std::os::raw::c_ptrdiff_t #90421

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d429d0d
Replace `std::os::raw::c_ssize_t` with `std::os::raw::c_ptrdiff_t`
thomcc Oct 30, 2021
8d19819
Re-add `std::os::raw::c_ssize_t`, with more accurate documentation
thomcc Oct 31, 2021
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9 changes: 8 additions & 1 deletion library/std/src/os/raw/mod.rs
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Expand Up @@ -165,7 +165,14 @@ pub use core::ffi::c_void;
#[unstable(feature = "c_size_t", issue = "88345")]
pub type c_size_t = usize;

/// Equivalent to C's `ssize_t` type, from `stddef.h` (or `cstddef` for C++).
/// Equivalent to C's `ptrdiff_t` type, from `stddef.h` (or `cstddef` for C++).
///
/// This type is currently always [`isize`], however in the future there may be
/// platforms where this is not the case.
#[unstable(feature = "c_size_t", issue = "88345")]
pub type c_ptrdiff_t = isize;

/// Equivalent to C's `ssize_t` (on POSIX) or `SSIZE_T` (on Windows) type.
///
/// This type is currently always [`isize`], however in the future there may be
/// platforms where this is not the case.
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