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Message-Id: <c888814b01965f6885b03819c0cb9be00d4f5800.1684922674.git.Jens.Gustedt@inria.fr>
Date: Wed, 3 May 2023 13:40:00 +0200
From: Jens Gustedt <Jens.Gustedt@...ia.fr>
To: musl@...ts.openwall.com
Subject: [C23 feature tests 3/6] C23: add a feature test for the [u]int128_t
---
include/features.h | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/include/features.h b/include/features.h
index 05abcadc..4083436d 100644
--- a/include/features.h
+++ b/include/features.h
@@ -61,4 +61,11 @@
#define __has_VA_OPT1(...) __has_VA_OPT2(__VA_OPT__(,) 1, 0,)
#define __has_VA_OPT __has_VA_OPT1(C23)
+// If the platform supports the 128 integer type and has _BitInt(N)
+// support where N large enough (all C23 compiler should have the
+// latter)
+#if __SIZEOF_INT128__ && (__BITINT_MAXWIDTH__ >= 128)
+#define __has_int128_t 1
+#endif
+
#endif
--
2.34.1
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