Move fabs(3), frexp(3), and modf(3) to libm--nothing has been using

them in libc for a very long time.  OK guenther@.

1 files changed, 69 insertions, 0 deletions

diff --git a/lib/libm/noieee_src/n_frexp.c b/lib/libm/noieee_src/n_frexp.c
new file mode 100644
index 00000000000..b0615647edb
--- /dev/null
+++ b/lib/libm/noieee_src/n_frexp.c
@@ -0,0 +1,69 @@
+/*	$OpenBSD: n_frexp.c,v 1.1 2011/07/08 19:21:42 martynas Exp $ */
+/*-
+ * Copyright (c) 1991, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* LINTLIBRARY */
+
+#include <sys/cdefs.h>
+#include <sys/types.h>
+#include <math.h>
+
+double
+frexp(value, eptr)
+	double value;
+	int *eptr;
+{
+	union {
+		double v;
+		struct {
+			u_int u_mant1 :  7;
+			u_int   u_exp :  8;
+			u_int  u_sign :  1;
+			u_int u_mant2 : 16;
+			u_int u_mant3 : 32;
+		} s;
+	} u;
+
+	if (value) {
+		u.v = value;
+		*eptr = u.s.u_exp - 128;
+		u.s.u_exp = 128;
+		return(u.v);
+	} else {
+		*eptr = 0;
+		return((double)0);
+	}
+}
+
+#ifdef	lint
+/* PROTOLIB1 */
+long double frexpl(long double, int *);
+#else	/* lint */
+__weak_alias(frexpl, frexp);
+#endif	/* lint */