X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_sched%2Frte_approx.h;h=74d55f457bc96b19fd9cad6ba0486bb94366719a;hb=f159c61c35ebc6ff18d2c6c2cb07c177935a96e3;hp=09f30a87f3cc130fc531e9f7bf34b727b4b823ea;hpb=3031749c2df04a63cdcef186dcce3781e61436e8;p=dpdk.git

diff --git a/lib/librte_sched/rte_approx.h b/lib/librte_sched/rte_approx.h
index 09f30a87f3..74d55f457b 100644
--- a/lib/librte_sched/rte_approx.h
+++ b/lib/librte_sched/rte_approx.h
@@ -1,34 +1,5 @@
-/*-
- *   BSD LICENSE
- *
- *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
- *   All rights reserved.
- *
- *   Redistribution and use in source and binary forms, with or without
- *   modification, are permitted provided that the following conditions
- *   are met:
- *
- *     * Redistributions of source code must retain the above copyright
- *       notice, this list of conditions and the following disclaimer.
- *     * 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.
- *     * Neither the name of Intel Corporation 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 COPYRIGHT HOLDERS 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 COPYRIGHT
- *   OWNER 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.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2014 Intel Corporation
  */
 
 #ifndef __INCLUDE_RTE_APPROX_H__
@@ -68,6 +39,24 @@ extern "C" {
  */
 int rte_approx(double alpha, double d, uint32_t *p, uint32_t *q);
 
+/**
+ * Find best rational approximation (64 bit version)
+ *
+ * @param alpha
+ *   Rational number to approximate
+ * @param d
+ *   Precision for the rational approximation
+ * @param p
+ *   Pointer to pre-allocated space where the numerator of the rational
+ *   approximation will be stored when operation is successful
+ * @param q
+ *   Pointer to pre-allocated space where the denominator of the rational
+ *   approximation will be stored when operation is successful
+ * @return
+ *   0 upon success, error code otherwise
+ */
+int rte_approx_64(double alpha, double d, uint64_t *p, uint64_t *q);
+
 #ifdef __cplusplus
 }
 #endif