.

vendor/github.com/valyala/fasthttp/round2_64.go

@@ -0,0 +1,23 @@
+//go:build amd64 || arm64 || ppc64 || ppc64le || riscv64 || s390x
+
+package fasthttp
+
+func roundUpForSliceCap(n int) int {
+	if n <= 0 {
+		return 0
+	}
+
+	// Above 100MB, we don't round up as the overhead is too large.
+	if n > 100*1024*1024 {
+		return n
+	}
+
+	x := uint64(n - 1)
+	x |= x >> 1
+	x |= x >> 2
+	x |= x >> 4
+	x |= x >> 8
+	x |= x >> 16
+
+	return int(x + 1)
+}