faster for large sample size (in principle)

[samtools.git] / bcftools / bcf.c

diff --git a/bcftools/bcf.c b/bcftools/bcf.c
index 2cb98761cf570d7e6ba6260217977c536158301e..c3313881ef90fc2930c72d218c090b35e5cf9466 100644 (file)
--- a/bcftools/bcf.c
+++ b/bcftools/bcf.c
@@ -223,6 +223,7 @@ void bcf_fmt_core(const bcf_hdr_t *h, bcf1_t *b, kstring_t *s)
                fmt_str(b->fmt, s);
        }
        x = b->n_alleles * (b->n_alleles + 1) / 2;
+       if (b->n_gi == 0) return;
        for (j = 0; j < h->n_smpl; ++j) {
                kputc('\t', s);
                for (i = 0; i < b->n_gi; ++i) {