functions: return a count of failures from map, if possible

I don't have any particular use case for this, but it might be nice to
have this available in the future.

Signed-off-by: Dave Reisner <dreisner@archlinux.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/functions b/functions
index 432d700..fac153c 100644
--- a/functions
+++ b/functions
@@ -193,7 +193,7 @@ die() {
 map() {
     local r=0
     for _ in "${@:2}"; do
-        "$1" "$_" || r=1
+        "$1" "$_" || (( $# > 255 ? r=1 : ++r ))
     done
     return $r
 }