STYLE: document some rules about variable declarations

No-one seemed opposed to C99 style loop variable declarations. The
requirement to declare variables at the top of blocks is maybe a little
more contested, but I believe it reflects the status quo.

diff --git a/devel/STYLE b/devel/STYLE
index 24bd5482a4899b185f923302bb4801177dc6b3ea..b22d8d353e15c11c0827bf7adf38e8eefe8843ba 100644 (file)
--- a/devel/STYLE
+++ b/devel/STYLE
@@ -25,9 +25,7 @@ The following nonsense code demonstrates many aspects of the style:
 static some_type
 function (param_type param, param_type param)
 {
 static some_type
 function (param_type param, param_type param)
 {

-   int i;
-
-   for (i = 0; i < 10; i++) {
+   for (int i = 0; i < 10; i++) {

        int j;
 
        j = i + 10;
        int j;
 
        j = i + 10;


@@ -64,6 +62,9 @@ function (param_type param, param_type param)
 * Code lines should be less than 80 columns and comments should be
   wrapped at 70 columns.
 
 * Code lines should be less than 80 columns and comments should be
   wrapped at 70 columns.
 

+* Variable declarations should be at the top of a block; C99 style
+  control variable declarations in for loops are also OK.
+

 Naming
 ------
 
 Naming
 ------