utils-std

commit: cd9123c51ba5e7092229c9c44d16577dae0ef775
parent 5656589f5a4538a8acc84fa225020d74bb84dd8e
Author: Haelwenn (lanodan) Monnier <contact@hacktivis.me>
Date:   Tue, 19 Sep 2023 13:19:57 +0200

lib/bitmasks.h: Create macros for bitmasks manipulation

Diffstat:
A
lib/bitmasks.h
9
+++++++++

1 file changed, 9 insertions(+), 0 deletions(-)
diff --git a/lib/bitmasks.h b/lib/bitmasks.h
@@ -0,0 +1,9 @@
+// SPDX-FileCopyrightText: 2023 Haelwenn (lanodan) Monnier <contact+utils@hacktivis.me>
+// SPDX-License-Identifier: CC0-1.0
+
+// C had one job: Portable bitfields.
+#define FIELD_SET(field, val) field |= (val)
+#define FIELD_CLR(field, val) field &= ~(val)
+#define FIELD_TGL(field, val) field ^= (val)
+
+#define FIELD_GET(field, val) (field & (val))