From 960d2bd158234b2e3ae4f581bcf7d155976dd7a2 Mon Sep 17 00:00:00 2001
From: Joshua Ashton <joshua@froggi.es>
Date: Sat, 11 Jan 2020 03:23:52 +0000
Subject: [PATCH] [util] Add exchange helper to bitset
---
src/util/util_bit.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/src/util/util_bit.h b/src/util/util_bit.h
index 319dbae1..23b9cb7b 100644
--- a/src/util/util_bit.h
+++ b/src/util/util_bit.h
@@ -205,6 +205,12 @@ namespace dxvk::bit {
m_dwords[dword] &= ~(1u << bit);
}
+ constexpr bool exchange(uint32_t idx, bool value) {
+ bool oldValue = get(idx);
+ set(idx, value);
+ return oldValue;
+ }
+
constexpr void flip(uint32_t idx) {
uint32_t dword = 0;
uint32_t bit = idx;