Trait CPtr

pub trait CPtr {
    type Target;

    // Required methods
    fn as_c_ptr(&self) -> *const Self::Target;
    fn as_mut_c_ptr(&mut self) -> *mut Self::Target;
}

Expand description

A trait for producing pointers that will always be valid in C (assuming NULL pointer is a valid no-op).

Rust does not guarantee pointers to Zero Sized Types (https://doc.rust-lang.org/nomicon/exotic-sizes.html#zero-sized-types-zsts). In case the type is empty this trait will return a NULL pointer, which should be handled in C.

Required Associated Types§

type Target

Required Methods§

fn as_c_ptr(&self) -> *const Self::Target

fn as_mut_c_ptr(&mut self) -> *mut Self::Target

Implementations on Foreign Types§

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fn as_mut_c_ptr(&mut self) -> *mut <[T] as CPtr>::Target

Implementors§

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impl CPtr for breez_sdk_core::bitcoin::secp256k1::ecdsa::RecoverableSignature

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type Target = RecoverableSignature

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impl CPtr for breez_sdk_core::bitcoin::secp256k1::ecdsa::Signature

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type Target = Signature

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impl CPtr for breez_sdk_core::bitcoin::secp256k1::schnorr::Signature

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type Target = u8

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impl CPtr for breez_sdk_core::bitcoin::secp256k1::KeyPair

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type Target = KeyPair

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impl CPtr for Message

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type Target = u8

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impl CPtr for breez_sdk_core::bitcoin::secp256k1::PublicKey

This trait enables interaction with the FFI layer and even though it is part of the public API normal users should never need to directly interact with FFI types.

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