wrapping_add in std::intrinsics - Rust
Description: Returns (a + b) mod 2N, where N is the width of T in bits.
Keywords: rust, rustlang, rust-lang, wrapping_add

# Function std::intrinsics::wrapping_add

const: 1.40.0 · source · [−]

    pub const extern "rust-intrinsic" fn wrapping_add<T>(a: T, b: T) -> T where
        T: Copy,

🔬 This is a nightly-only experimental API. (`core_intrinsics`)
Expand description

Returns (a + b) mod 2N, where N is the width of T in bits.

Note that, unlike most intrinsics, this is safe to call; it does not require an `unsafe` block. Therefore, implementations must not require the user to uphold any safety invariants.

The stabilized versions of this intrinsic are available on the integer primitives via the `wrapping_add` method. For example, `u32::wrapping_add`