# Function std::intrinsics::wrapping_mul

const: 1.40.0 · source ·

    pub const extern "rust-intrinsic" fn wrapping_mul<T>(a: T, b: T) -> Twhere
        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_mul` method. For example, `u32::wrapping_mul`