## LLVMRustCreateRangeAttribute

# Function LLVMRustCreateRangeAttribute

Source

    pub(crate) unsafe extern "C" fn LLVMRustCreateRangeAttribute(
        C: &Context,
        NumBits: c_uint,
        LowerWords: *const u64,
        UpperWords: *const u64,
    ) -> &Attribute

Expand description

### §Safety

- Each of `LowerWords` and `UpperWords` must point to an array that is long enough to fully define an integer of size `NumBits`, i.e. each pointer must point to `NumBits.div_ceil(64)` elements or more.
- The implementation will make its own copy of the pointed-to `u64` values, so the pointers only need to outlive this function call.