1 /* 2 * Copyright (c) 2017-2020 Arm Limited. 3 * 4 * SPDX-License-Identifier: MIT 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to 8 * deal in the Software without restriction, including without limitation the 9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 10 * sell copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in all 14 * copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 22 * SOFTWARE. 23 */ 24 #ifndef ARM_COMPUTE_TEST_UTILS 25 #define ARM_COMPUTE_TEST_UTILS 26 27 #include "support/StringSupport.h" 28 29 #include <algorithm> 30 #include <cmath> 31 #include <cstddef> 32 #include <limits> 33 #include <memory> 34 #include <numeric> 35 #include <sstream> 36 #include <string> 37 #include <type_traits> 38 39 namespace arm_compute 40 { 41 namespace test 42 { 43 namespace framework 44 { 45 /** @cond */ 46 namespace detail 47 { 48 template <int...> 49 struct sequence 50 { 51 }; 52 53 template <int N, int... Ns> 54 struct sequence_generator; 55 56 template <int... Ns> 57 struct sequence_generator<0, Ns...> 58 { 59 using type = sequence<Ns...>; 60 }; 61 62 template <int N, int... Ns> 63 struct sequence_generator : sequence_generator < N - 1, N - 1, Ns... > 64 { 65 }; 66 67 template <int N> 68 using sequence_t = typename sequence_generator<N>::type; 69 /** @endcond */ 70 71 template <typename O, typename F, typename... As, int... S> 72 void apply_impl(O *obj, F &&func, const std::tuple<As...> &args, detail::sequence<S...>) 73 { 74 (obj->*func)(std::get<S>(args)...); 75 } 76 } // namespace 77 78 template <typename O, typename F, typename... As> 79 void apply(O *obj, F &&func, const std::tuple<As...> &args) 80 { 81 detail::apply_impl(obj, std::forward<F>(func), args, detail::sequence_t<sizeof...(As)>()); 82 } 83 84 /** Helper function to concatenate multiple strings. 85 * 86 * @param[in] first Iterator pointing to the first element to be concatenated. 87 * @param[in] last Iterator pointing behind the last element to be concatenated. 88 * @param[in] separator String used to join the elements. 89 * 90 * @return String containing all elements joined by @p separator. 91 */ 92 template <typename T, typename std::enable_if<std::is_same<typename T::value_type, std::string>::value, int>::type = 0> 93 std::string join(T first, T last, const std::string &separator) 94 { 95 return std::accumulate(std::next(first), last, *first, [&separator](const std::string & base, const std::string & suffix) 96 { 97 return base + separator + suffix; 98 }); 99 } 100 101 /** Helper function to concatenate multiple values. 102 * 103 * All values are converted to std::string using the provided operation before 104 * being joined. 105 * 106 * The signature of op has to be equivalent to 107 * std::string op(const T::value_type &val). 108 * 109 * @param[in] first Iterator pointing to the first element to be concatenated. 110 * @param[in] last Iterator pointing behind the last element to be concatenated. 111 * @param[in] separator String used to join the elements. 112 * @param[in] op Conversion function. 113 * 114 * @return String containing all elements joined by @p separator. 115 */ 116 template <typename T, typename UnaryOp> 117 std::string join(T &&first, T &&last, const std::string &separator, UnaryOp &&op) 118 { 119 return std::accumulate(std::next(first), last, op(*first), [&separator, &op](const std::string & base, const typename T::value_type & suffix) 120 { 121 return base + separator + op(suffix); 122 }); 123 } 124 125 /** Helper function to concatenate multiple values. 126 * 127 * All values are converted to std::string using std::to_string before being joined. 128 * 129 * @param[in] first Iterator pointing to the first element to be concatenated. 130 * @param[in] last Iterator pointing behind the last element to be concatenated. 131 * @param[in] separator String used to join the elements. 132 * 133 * @return String containing all elements joined by @p separator. 134 */ 135 template <typename T, typename std::enable_if<std::is_arithmetic<typename T::value_type>::value, int>::type = 0> 136 std::string join(T && first, T && last, const std::string &separator) 137 { 138 return join(std::forward<T>(first), std::forward<T>(last), separator, support::cpp11::to_string); 139 } 140 141 /** Convert string to lower case. 142 * 143 * @param[in] string To be converted string. 144 * 145 * @return Lower case string. 146 */ 147 inline std::string tolower(std::string string) 148 { 149 std::transform(string.begin(), string.end(), string.begin(), [](unsigned char c) 150 { 151 return std::tolower(c); 152 }); 153 return string; 154 } 155 156 /** Create a string with the arithmetic value in full precision. 157 * 158 * @param val Arithmetic value 159 * @param decimal_places How many decimal places to show 160 * 161 * @return String with the arithmetic value. 162 */ 163 template <typename T, typename std::enable_if<std::is_arithmetic<T>::value, int>::type = 0> 164 inline std::string arithmetic_to_string(T val, int decimal_places = 0) 165 { 166 std::stringstream ss; 167 ss << std::fixed; 168 ss.precision((decimal_places) ? decimal_places : std::numeric_limits<T>::digits10 + 1); 169 ss << val; 170 return ss.str(); 171 } 172 173 /** Makes the calling thread to sleep for a specified number of seconds 174 * 175 * @param[in] seconds Amount of seconds to sleep. Will return immediately if less or equal to zero. 176 */ 177 void sleep_in_seconds(float seconds); 178 } // namespace framework 179 } // namespace test 180 } // namespace arm_compute 181 #endif /* ARM_COMPUTE_TEST_UTILS */ 182