Function GetIpoptCurrentViolations 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn GetIpoptCurrentViolations(
    ipopt_problem: IpoptProblem,
    _scaled: Bool,
    n: Index,
    x_l_violation: *mut Number,
    x_u_violation: *mut Number,
    compl_x_l: *mut Number,
    compl_x_u: *mut Number,
    grad_lag_x: *mut Number,
    m: Index,
    nlp_constraint_violation: *mut Number,
    compl_g: *mut Number,
) -> Bool

Port of IpStdCInterface.cpp:GetIpoptCurrentViolations (Ipopt 3.14+). Same contract as GetIpoptCurrentIterate; returns FALSE when called outside an active intermediate callback.

scaled is currently ignored — see GetIpoptCurrentIterate. Violations and complementarities are reported in the compressed algorithm-side space scattered out to full-n/m; this is the shape upstream callers consume (zero-fill for free positions / no-bound positions).

Safety

ipopt_problem must be a valid IpoptProblem. Each output buffer, when non-NULL, must hold at least the declared length.