libvapours: add (kibi/mebi/gibi)byte literals

libraries/libvapours/include/vapours/literals.hpp

@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2018-2019 Atmosphère-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+#include "../defines.hpp"
+
+namespace ams { inline namespace literals {
+
+    constexpr ALWAYS_INLINE size_t operator ""_KB(unsigned long long n) {
+        return static_cast<size_t>(n) * size_t(1024);
+    }
+
+    constexpr ALWAYS_INLINE size_t operator ""_MB(unsigned long long n) {
+        return operator ""_KB(n) * size_t(1024);
+    }
+
+    constexpr ALWAYS_INLINE size_t operator ""_GB(unsigned long long n) {
+        return operator ""_MB(n) * size_t(1024);
+    }
+
+} }