1 /* Copyright 2019 The TensorFlow Authors. All Rights Reserved.
2 
3 Licensed under the Apache License, Version 2.0 (the "License");
4 you may not use this file except in compliance with the License.
5 You may obtain a copy of the License at
6 
7     http://www.apache.org/licenses/LICENSE-2.0
8 
9 Unless required by applicable law or agreed to in writing, software
10 distributed under the License is distributed on an "AS IS" BASIS,
11 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 See the License for the specific language governing permissions and
13 limitations under the License.
14 ==============================================================================*/
15 
16 #ifndef TENSORFLOW_CORE_PROFILER_UTILS_MATH_UTILS_H_
17 #define TENSORFLOW_CORE_PROFILER_UTILS_MATH_UTILS_H_
18 
19 namespace tensorflow {
20 namespace profiler {
21 
22 // Checks the divisor and returns 0 to avoid divide by zero.
SafeDivide(double dividend,double divisor)23 inline double SafeDivide(double dividend, double divisor) {
24   constexpr double kEpsilon = 1.0E-10;
25   if ((-kEpsilon < divisor) && (divisor < kEpsilon)) return 0.0;
26   return dividend / divisor;
27 }
28 
29 }  // namespace profiler
30 }  // namespace tensorflow
31 
32 #endif  // TENSORFLOW_CORE_PROFILER_UTILS_MATH_UTILS_H_
33