fixed an issue in parsing integer

diff --git a/bcftools/vcfout.c b/bcftools/vcfout.c
index 58f11a2e8499ec9f0e888feae7c8aaba6543dfa1..fd817f92cbdb279c1f8e5af6ff81b885bab89dc1 100644 (file)
--- a/bcftools/vcfout.c
+++ b/bcftools/vcfout.c
@@ -88,7 +88,7 @@ static double test_fisher(bcf1_t *b, const char *key, int d[4], int is_single)
        p += 4;
        for (i = 0; i < 4; ++i) {
                d[i] = strtol(p, &p, 10);
-               if (errno == EINVAL || errno == ERANGE) return -2.;
+               if (d[i] == 0 && (errno == EINVAL || errno == ERANGE)) return -2.;
                ++p;
        }
        kt_fisher_exact(d[0], d[1], d[2], d[3], &left, &right, &two);