We didn't specify the indent rule for multiline code here, which may
mislead users. And in current code, the code use various styles.
Add this rule in CODING_STYLE to make sure this is clear to every one.
Signed-off-by: Wei Yang <richardw.y...@linux.intel.com>
Suggested-by: Igor Mammedov <imamm...@redhat.com>
---
v5:
* different rules -> various styles
* describe function variants separately
* take struct out
v4:
* widths -> width
* add an exception example for function
v3:
* misleading -> mislead
* add comma after arg2 in example
v2:
* rephrase changelog suggested by Eric Blake
- remove one redundant line
- fix some awkward grammar
- add { ; at the end of example
---
CODING_STYLE | 39 +++++++++++++++++++++++++++++++++++++++
1 file changed, 39 insertions(+)
diff --git a/CODING_STYLE b/CODING_STYLE
index ec075dedc4..e175e6ea9a 100644
--- a/CODING_STYLE
+++ b/CODING_STYLE
@@ -29,6 +29,45 @@ Spaces of course are superior to tabs because:
Do not leave whitespace dangling off the ends of lines.
+1.1 Multiline Indent
+
+There are several places where indent is necessary:
+
+ - if/else
+ - while/for
+ - function definition & call
+
+When breaking up a long line to fit within line width, we need a proper indent
+for the following lines.
+
+In case of if/else, while/for, align the secondary lines just after the
+opening parenthesis of the first.
+
+For example:
+
+ if (a == 1 &&
+ b == 2) {
+
+ while (a == 1 &&
+ b == 2) {
+
+In case of function, there are several variants:
+
+ * 4 spaces indent from the beginning
+ * align the secondary lines just after the opening parenthesis of the
+ first
+
+For example:
+
+ do_something(x, y,
+ z);
+
+ do_something(x, y,
+ z);
+
+ do_something(x, do_another(y,
+ z);
+
2. Line width
Lines should be 80 characters; try not to make them longer.
--
2.19.1
