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authorDenys Vlasenko2023-06-15 12:44:43 +0200
committerDenys Vlasenko2023-06-15 12:44:43 +0200
commit22cb0d573a5cabd24fa648f1a13c22acf661a4a3 (patch)
tree39fafab4582ca770148ca9aa225cda17f0687a10 /shell/ash_test
parent648f506949ded749e28186d0092b6e42085c897b (diff)
downloadbusybox-22cb0d573a5cabd24fa648f1a13c22acf661a4a3.zip
busybox-22cb0d573a5cabd24fa648f1a13c22acf661a4a3.tar.gz
shell: document another arithmetic discrepancy with bash
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'shell/ash_test')
-rw-r--r--shell/ash_test/ash-arith/arith-assign-in-varexp1.right2
-rwxr-xr-xshell/ash_test/ash-arith/arith-assign-in-varexp1.tests9
2 files changed, 11 insertions, 0 deletions
diff --git a/shell/ash_test/ash-arith/arith-assign-in-varexp1.right b/shell/ash_test/ash-arith/arith-assign-in-varexp1.right
new file mode 100644
index 0000000..1feb307
--- /dev/null
+++ b/shell/ash_test/ash-arith/arith-assign-in-varexp1.right
@@ -0,0 +1,2 @@
+7:7
+x=3
diff --git a/shell/ash_test/ash-arith/arith-assign-in-varexp1.tests b/shell/ash_test/ash-arith/arith-assign-in-varexp1.tests
new file mode 100755
index 0000000..fc8ac9d
--- /dev/null
+++ b/shell/ash_test/ash-arith/arith-assign-in-varexp1.tests
@@ -0,0 +1,9 @@
+exec 2>&1
+a='x=1'
+b='x=2'
+c='x=3'
+# The variables should evaluate immediately when they encountered,
+# not when they go into an operation. Here, order of evaluation
+# of names to numbers should be a,b,c - not b,c,a:
+echo 7:$((a+b*c))
+echo "x=$x"