Function rust_htslib::htslib::bcf_add_filter

pub unsafe extern "C" fn bcf_add_filter(
    hdr: *const bcf_hdr_t, 
    line: *mut bcf1_t, 
    flt_id: c_int
) -> c_int

bcf_add_filter() - adds to the FILTER column @flt_id: filter ID to add, numeric ID returned by bcf_hdr_id2int(hdr, BCF_DT_ID, "PASS")

If flt_id is PASS, all existing filters are removed first. If other than PASS, existing PASS is removed.