From fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4 Mon Sep 17 00:00:00 2001
From: Joseph Hunkeler <jhunkeler@gmail.com>
Date: Wed, 8 Jul 2015 20:46:52 -0400
Subject: Initial commit

---
 unix/f2c/libf2c/signbit.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 unix/f2c/libf2c/signbit.c

(limited to 'unix/f2c/libf2c/signbit.c')

diff --git a/unix/f2c/libf2c/signbit.c b/unix/f2c/libf2c/signbit.c
new file mode 100644
index 00000000..de95a3b7
--- /dev/null
+++ b/unix/f2c/libf2c/signbit.c
@@ -0,0 +1,24 @@
+#include "arith.h"
+
+#ifndef Long
+#define Long long
+#endif
+
+ int
+#ifdef KR_headers
+signbit_f2c(x) double *x;
+#else
+signbit_f2c(double *x)
+#endif
+{
+#ifdef IEEE_MC68k
+	if (*(Long*)x & 0x80000000)
+		return 1;
+#else
+#ifdef IEEE_8087
+	if (((Long*)x)[1] & 0x80000000)
+		return 1;
+#endif /*IEEE_8087*/
+#endif /*IEEE_MC68k*/
+	return 0;
+	}
-- 
cgit