bc/dc: fix length(0) and length(0.000nnn) result

function                                             old     new   delta
zxc_vm_process                                      6464    6498     +34

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/testsuite/bc.tests b/testsuite/bc.tests
index 179d5d2a2..1c748727a 100755
--- a/testsuite/bc.tests
+++ b/testsuite/bc.tests
@@ -182,6 +182,11 @@ testing "bc print 1,2,3" \
         "123" \
         "" "print 1,2,3"
 
+testing "bc length" \
+        "bc" \
+        "1\n3\n1\n3\n3\n" \
+        "" "length(0); length(100); length(0.01); length(0.00120); length(0.012-0.012);"
+
 testing "bc { print 1 }" \
         "bc" \
         "1" \