Function rust_htslib::htslib::bcf_hdr_fmt_text

pub unsafe extern "C" fn bcf_hdr_fmt_text(
    hdr: *const bcf_hdr_t, 
    is_bcf: c_int, 
    len: *mut c_int
) -> *mut c_char

Returns formatted header (newly allocated string) and its length, excluding the terminating \0. If is_bcf parameter is unset, IDX fields are discarded. @deprecated Use bcf_hdr_format() instead as it can handle huge headers.