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use std::slice;
use varisat_formula::{lit::LitIdx, Lit};
pub mod activity;
pub mod alloc;
pub mod assess;
pub mod db;
pub mod gc;
pub mod header;
pub mod reduce;
pub use activity::{bump_clause_activity, decay_clause_activities, ClauseActivity};
pub use alloc::{ClauseAlloc, ClauseRef};
pub use assess::{assess_learned_clause, bump_clause};
pub use db::{ClauseDb, Tier};
pub use gc::collect_garbage;
pub use header::ClauseHeader;
use header::HEADER_LEN;
#[repr(transparent)]
pub struct Clause {
data: [LitIdx],
}
impl Clause {
pub fn header(&self) -> &ClauseHeader {
unsafe {
let header_ptr = self.data.as_ptr() as *const ClauseHeader;
&*header_ptr
}
}
pub fn header_mut(&mut self) -> &mut ClauseHeader {
unsafe {
let header_ptr = self.data.as_mut_ptr() as *mut ClauseHeader;
&mut *header_ptr
}
}
pub fn lits(&self) -> &[Lit] {
unsafe {
let lit_ptr = self.data.as_ptr().add(HEADER_LEN) as *const Lit;
slice::from_raw_parts(lit_ptr, self.data.len() - HEADER_LEN)
}
}
pub fn lits_mut(&mut self) -> &mut [Lit] {
unsafe {
let lit_ptr = self.data.as_mut_ptr().add(HEADER_LEN) as *mut Lit;
slice::from_raw_parts_mut(lit_ptr, self.data.len() - HEADER_LEN)
}
}
}