71 lines
1.9 KiB
Rust
71 lines
1.9 KiB
Rust
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//! This defines the primitive types that may be seen
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//! when creating 'C' bindings.
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//!
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//! There are several places where the target architecture and the OS
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//! require special consideration. These are handled
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//! with configuration statements.
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// Character types.
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#[cfg(any(target_os="android", target_os="emscripten",
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all(target_os="linux",
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any(target_arch="aarch64", target_arch="arm",
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target_arch="powerpc", target_arch="powerpc64"))))]
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pub type CChar = u8;
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#[cfg(not(any(target_os="android", target_os="emscripten",
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all(target_os="linux",
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any(target_arch="aarch64", target_arch="arm",
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target_arch="powerpc", target_arch="powerpc64")))))]
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pub type CChar = i8;
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pub type CIChar = i8;
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pub type CUChar = u8;
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// Integer types.
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#[cfg(any(target_pointer_width="32", target_os="windows"))]
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pub type CLong = i32;
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#[cfg(any(target_pointer_width="32", target_os="windows"))]
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pub type CULong = u32;
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#[cfg(all(target_pointer_width="64", not(target_os="windows")))]
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pub type CLong = i32;
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#[cfg(all(target_pointer_width="64", not(target_os="windows")))]
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pub type CULong = u32;
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pub type CShort = i16;
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pub type CUShort = u16;
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pub type CInt = i32;
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pub type CUInt = u32;
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pub type CLongLong = u64;
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pub type CULongLong = u64;
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pub type CFloat = f32;
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pub type CDouble = f64;
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// Void types.
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/// To return void from a 'C' function it should return an empty tuple ().
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/// This type is just a descriptive version of that. **DO NOT** use this
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/// as an argument to a function. Use the c_void type for that.
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pub type CReturnVoid = ();
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/// This acts as a 'C' void pointer to pass to functions. **DO NOT**
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/// use this as a return type from a 'C' function. If a 'C' function
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/// returns void, then use the c_return_void type for that.
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#[repr(u8)]
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pub enum CVoid
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{
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#[doc(hidden)]
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_Variant,
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#[doc(hidden)]
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_Variant2
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}
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