Clears a slice, stored in slots of 32 bytes, from storage, starting at the slot.

Deprecation Notice

This function is deprecated in favor of clear_slice_quads, clear_slice_slot, and clear_slice_slot_existed.
To preserve exactly the same behavior as clear_slice, use clear_slice_quads.
To clear a slice contained in a single dynamic slot of variable sizes, use clear_slice_slot.
To clear a slice contained in a single dynamic slot of variable sizes, and obtain information
about whether the cleared slot was previously set, use clear_slice_slot_existed.

Arguments

• slot: [b256] - The storage slot to begin clearing the slice from.

Returns

• [bool] - true if all of the cleared storage slots were previously set. Otherwise, false.

Number of Storage Accesses

• Reads: 1 (to determine the length of the slice)
• Clears: 2 (one for the length of the slice, and one for the slice content)

Examples

use std::{alloc::alloc_bytes, storage::{clear_slice, write_slice, read_slice}};

fn foo() {
    let slice = asm(ptr: (alloc_bytes(1), 1)) { ptr: raw_slice };
    write_slice(b256::zero(), slice);
    assert(read_slice(b256::zero()).is_some());
    let cleared = clear_slice(b256::zero());
    assert(cleared);
    assert(read_slice(b256::zero()).is_none());
}