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fix ffi for platform-specific uint_fast types for macOS and Android #334

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KyrylR wants to merge 3 commits into from
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fix ffi for platform-specific uint_fast types for macOS and Android #334

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4126e2e
fix ffi for platform-specific uint_fast types for macOS and Android
KyrylR Jan 6, 2026
7a77539
Bump simplicity-sys version to 0.6.1
KyrylR Jan 6, 2026
117b90c
Bump simplicity-lang version to 0.7.1
KyrylR Jan 6, 2026
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34 changes: 26 additions & 8 deletions simplicity-sys/src/ffi.rs
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@KyrylR KyrylR Jan 6, 2026

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Also, I am not sure about the

#[cfg(not(target_arch = "wasm32"))]
pub type c_uint_fast64_t = usize;

Because of: https://en.cppreference.com/w/c/types/integer.html

image

As far as I understand on 32-bit platforms like armv7 because we are using the usize this thing could fail

Original file line number Diff line number Diff line change
Expand Up @@ -19,18 +19,36 @@ pub type c_int = i32;
pub type c_uint = u32;
pub type c_size_t = usize;
pub type c_uint_fast8_t = u8;
#[cfg(all(
any(target_arch = "wasm32", target_arch = "aarch64"),
not(target_os = "windows")
))]
#[cfg(any(target_os = "macos", target_os = "ios"))]
pub type c_uint_fast16_t = u16;
#[cfg(target_os = "windows")]
#[cfg(any(target_os = "windows", target_os = "android"))]
pub type c_uint_fast16_t = u32;
#[cfg(not(any(target_arch = "wasm32", target_arch = "aarch64", target_os = "windows")))]
#[cfg(target_arch = "wasm32")]
pub type c_uint_fast16_t = u16;
#[cfg(not(any(
target_os = "macos",
target_os = "ios",
target_os = "windows",
target_os = "android",
target_arch = "wasm32"
)))]
pub type c_uint_fast16_t = usize;
#[cfg(any(target_arch = "wasm32", target_arch = "aarch64", target_os = "windows"))]

#[cfg(any(
target_os = "macos",
target_os = "ios",
target_os = "windows",
target_os = "android",
target_arch = "wasm32"
))]
pub type c_uint_fast32_t = u32;
#[cfg(not(any(target_arch = "wasm32", target_arch = "aarch64", target_os = "windows")))]
#[cfg(not(any(
target_os = "macos",
target_os = "ios",
target_os = "windows",
target_os = "android",
target_arch = "wasm32"
)))]
pub type c_uint_fast32_t = usize;
#[cfg(target_arch = "wasm32")]
pub type c_uint_fast64_t = u64;
Expand Down