B | H | T

B: bcf_hdr_close (vcfpp::details); bcf_line_close (vcfpp::details); BcfHeader (vcfpp); BcfReader (vcfpp); BcfRecord (vcfpp); BcfWriter (vcfpp)

H: hts_file_close (vcfpp::details); hts_idx_close (vcfpp::details); hts_iter_close (vcfpp::details)