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/dc.tests b/testsuite/dc.tests
index 361bc8459..ad0099354 100755
--- a/testsuite/dc.tests
+++ b/testsuite/dc.tests
@@ -114,6 +114,11 @@ testing "dc newline can be a register" \
         "2\n9\n" \
         "" "[2p]s\n[3p]l\nx\n9p"
 
+testing "dc Z (length) for numbers" \
+        "dc" \
+        "1\n1\n3\n1\n3\n1\n" \
+        "" "0Zp\n0.000Zp\n100Zp\n0.01Zp\n0.00120Zp\n0.0012 0.0012 - Zp\n"
+
 for f in dc_*.dc; do
         r="`basename "$f" .dc`_results.txt"
         test -f "$r" || continue