altos: Add floating point math functions from newlib

These are all BSD licensed, so we can simply include them directly

Signed-off-by: Keith Packard <keithp@keithp.com>

1 files changed, 35 insertions, 0 deletions

diff --git a/src/math/math.h b/src/math/math.h
new file mode 100644
index 00000000..c62f583d
--- /dev/null
+++ b/src/math/math.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright © 2013 Keith Packard <keithp@keithp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+#ifndef _MATH_H_
+#define _MATH_H_
+
+float acosf(float x);
+
+float cosf(float x);
+
+float sqrtf(float x);
+
+float fabsf(float x);
+
+float floorf(float x);
+
+float scalbnf(float x, int n);
+
+float copysignf(float x, float y);
+
+#endif