Re: GAWK and the return value ("errorlevel")

[Aharon Robbins]

>In article <address@hidden>,
>Kenny McCormack <address@hidden> wrote:
>>I've noticed that in current (3.1.4) gawk, if you do something like:
>>
>>gawk 'BEGIN {print "Test" | "somecmd"}' ; echo "Return value: $?"
>>
>>Then if somecmd returns a(ny) non-zero status, then gawk will return 1.
>>To clarify: Yes, I mean that if somecmd returns, say, 7, then gawk will
>>return 1.  If "somecmd" returns 0, then gawk will also return 0.

In article <address@hidden>,
Aharon Robbins <address@hidden> wrote:
>This is a bug. I'll look into fixing it.

Here's the fix.

Arnold

--- ../gawk-3.1.4/main.c        2004-07-28 16:42:19.000000000 +0300
+++ main.c      2005-02-02 16:35:21.560782514 +0200
@@ -23,6 +23,9 @@
@@ -572,8 +595,16 @@
                (void) interpret(end_block);
        }
        in_end_rule = FALSE;
+#if 0
        if (close_io() != 0 && ! exiting && exit_val == 0)
                exit_val = 1;
+#else
+       /*
+        * Other awks don't care about problems closing open files
+        * and pipes, in that it doesn't affect their exit status.
+        */
+       (void) close_io();
+#endif
 
        if (do_profiling) {
                dump_prog(begin_block, expression_value, end_block);
-- 
Aharon (Arnold) Robbins --- Pioneer Consulting Ltd.     arnold AT skeeve DOT com
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