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| author | Michal Schmidt <mschmidt@redhat.com> | 2015-07-22 19:57:03 +0200 |
|---|---|---|
| committer | Michal Schmidt <mschmidt@redhat.com> | 2015-07-22 19:57:03 +0200 |
| commit | 42328446f42910f5890e46cc667041db9af9c413 (patch) | |
| tree | 676a74a2fcf6d8b95eb09503abfa0fc683998ad0 /src | |
| parent | Merge pull request #654 from ssahani/nl (diff) | |
| parent | basic: more optimizable IN_SET macro (diff) | |
| download | systemd-42328446f42910f5890e46cc667041db9af9c413.tar.xz systemd-42328446f42910f5890e46cc667041db9af9c413.zip | |
Merge pull request #660 from michich/in-set
improve IN_SET macro
Diffstat (limited to 'src')
| -rw-r--r-- | src/basic/macro.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/basic/macro.h b/src/basic/macro.h index 5fa17ed208..ea01d701d2 100644 --- a/src/basic/macro.h +++ b/src/basic/macro.h @@ -406,12 +406,12 @@ do { \ #define IN_SET(x, y, ...) \ ({ \ - const typeof(y) _y = (y); \ - const typeof(_y) _x = (x); \ + static const typeof(y) _array[] = { (y), __VA_ARGS__ }; \ + const typeof(y) _x = (x); \ unsigned _i; \ bool _found = false; \ - for (_i = 0; _i < 1 + sizeof((const typeof(_x)[]) { __VA_ARGS__ })/sizeof(const typeof(_x)); _i++) \ - if (((const typeof(_x)[]) { _y, __VA_ARGS__ })[_i] == _x) { \ + for (_i = 0; _i < ELEMENTSOF(_array); _i++) \ + if (_array[_i] == _x) { \ _found = true; \ break; \ } \ |