diff options
| -rw-r--r-- | library/std/src/os/raw/mod.rs | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/library/std/src/os/raw/mod.rs b/library/std/src/os/raw/mod.rs index 30eeac14b43..01392ffab79 100644 --- a/library/std/src/os/raw/mod.rs +++ b/library/std/src/os/raw/mod.rs @@ -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. |