Move Myrddin libs to lib/ subdirectory.

1 files changed, 20 insertions, 0 deletions

diff --git a/lib/std/slpush.myr b/lib/std/slpush.myr
new file mode 100644
index 0000000..b30b1e2
--- /dev/null
+++ b/lib/std/slpush.myr
@@ -0,0 +1,20 @@
+use "types.use"
+use "alloc.use"
+
+pkg std =
+	generic slpush	: (sl : @a[:], elt : @a	-> @a[:])
+;;
+
+generic slpush = {sl, elt
+	/*
+	slpush relies on implementation details
+	of slgrow for efficiency. Because bucket
+	sizes come in powers of two for all buckets
+	<= 32k, and we only reallocate when we hit
+	a bucket boundary, this is effectively
+	growing the slice by powers of two.
+	*/
+	sl = slgrow(sl, sl.len + 1)
+	sl[sl.len - 1] = elt
+	-> sl
+}