From 4abab5ad6c8465a7528ccdd5f49367da05f78bbd Mon Sep 17 00:00:00 2001
From: Vladimir Azarov <avm@intermediate-node.net>
Date: Tue, 1 Oct 2024 15:47:05 +0200
Subject: Initial version

---
 src/math/fabs.c | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 src/math/fabs.c

(limited to 'src/math/fabs.c')

diff --git a/src/math/fabs.c b/src/math/fabs.c
new file mode 100644
index 0000000..e8258cf
--- /dev/null
+++ b/src/math/fabs.c
@@ -0,0 +1,9 @@
+#include <math.h>
+#include <stdint.h>
+
+double fabs(double x)
+{
+	union {double f; uint64_t i;} u = {x};
+	u.i &= -1ULL/2;
+	return u.f;
+}
-- 
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