| /* |
| * Copyright (c) 2017-2018 ARM Limited. |
| * |
| * SPDX-License-Identifier: MIT |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to |
| * deal in the Software without restriction, including without limitation the |
| * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| * sell copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in all |
| * copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| #ifndef ARM_COMPUTE_TEST_TOOLCHAINSUPPORT |
| #define ARM_COMPUTE_TEST_TOOLCHAINSUPPORT |
| |
| #include <algorithm> |
| #include <cmath> |
| #include <cstddef> |
| #include <limits> |
| #include <memory> |
| #include <numeric> |
| #include <sstream> |
| #include <string> |
| #include <type_traits> |
| |
| #include "support/Half.h" |
| |
| namespace arm_compute |
| { |
| namespace support |
| { |
| namespace cpp11 |
| { |
| #if(__ANDROID__ || BARE_METAL) |
| /** Convert integer and float values to string. |
| * |
| * @note This function implements the same behaviour as std::to_string. The |
| * latter is missing in some Android toolchains. |
| * |
| * @param[in] value Value to be converted to string. |
| * |
| * @return String representation of @p value. |
| */ |
| template <typename T, typename std::enable_if<std::is_arithmetic<typename std::decay<T>::type>::value, int>::type = 0> |
| inline std::string to_string(T && value) |
| { |
| std::stringstream stream; |
| stream << std::forward<T>(value); |
| return stream.str(); |
| } |
| |
| /** Convert string values to integer. |
| * |
| * @note This function implements the same behaviour as std::stoi. The latter |
| * is missing in some Android toolchains. |
| * |
| * @param[in] str String to be converted to int. |
| * |
| * @return Integer representation of @p str. |
| */ |
| inline int stoi(const std::string &str, std::size_t *pos = 0, int base = 10) |
| { |
| unsigned int x; |
| std::stringstream ss; |
| if(base == 16) |
| { |
| ss << std::hex; |
| } |
| ss << str; |
| ss >> x; |
| return x; |
| } |
| |
| /** Convert string values to unsigned long. |
| * |
| * @note This function implements the same behaviour as std::stoul. The latter |
| * is missing in some Android toolchains. |
| * |
| * @param[in] str String to be converted to unsigned long. |
| * |
| * @return Unsigned long representation of @p str. |
| */ |
| inline unsigned long stoul(const std::string &str, std::size_t *pos = 0, int base = 10) |
| { |
| std::stringstream stream; |
| unsigned long value = 0; |
| if(base == 16) |
| { |
| stream << std::hex; |
| } |
| stream << str; |
| stream >> value; |
| return value; |
| } |
| |
| /** Convert string values to float. |
| * |
| * @note This function implements the same behaviour as std::stof. The latter |
| * is missing in some Android toolchains. |
| * |
| * @param[in] str String to be converted to float. |
| * |
| * @return Float representation of @p str. |
| */ |
| inline float stof(const std::string &str) |
| { |
| std::stringstream stream(str); |
| float value = 0.f; |
| stream >> value; |
| return value; |
| } |
| |
| /** Round floating-point value with half value rounding away from zero. |
| * |
| * @note This function implements the same behaviour as std::round except that it doesn't |
| * support Integral type. The latter is not in the namespace std in some Android toolchains. |
| * |
| * @param[in] value floating-point value to be rounded. |
| * |
| * @return Floating-point value of rounded @p value. |
| */ |
| template <typename T, typename = typename std::enable_if<std::is_floating_point<T>::value>::type> |
| inline T round(T value) |
| { |
| return ::round(value); |
| } |
| |
| /** Truncate floating-point value. |
| * |
| * @note This function implements the same behaviour as std::truncate except that it doesn't |
| * support Integral type. The latter is not in the namespace std in some Android toolchains. |
| * |
| * @param[in] value floating-point value to be truncated. |
| * |
| * @return Floating-point value of truncated @p value. |
| */ |
| template <typename T, typename = typename std::enable_if<std::is_floating_point<T>::value>::type> |
| inline T trunc(T value) |
| { |
| return ::trunc(value); |
| } |
| |
| /** Composes a floating point value with the magnitude of @p x and the sign of @p y. |
| * |
| * @note This function implements the same behaviour as std::copysign except that it doesn't |
| * support Integral type. The latter is not in the namespace std in some Android toolchains. |
| * |
| * @param[in] x value that contains the magnitude to be used in constructing the result. |
| * @param[in] y value that contains the sign to be used in construct in the result. |
| * |
| * @return Floating-point value with magnitude of @p x and sign of @p y. |
| */ |
| template <typename T, typename = typename std::enable_if<std::is_floating_point<T>::value>::type> |
| inline T copysign(T x, T y) |
| { |
| return ::copysign(x, y); |
| } |
| |
| /** Loads the data from the given location, converts them to character string equivalents |
| * and writes the result to a character string buffer. |
| * |
| * @param[in] s Pointer to a character string to write to |
| * @param[in] n Up to buf_size - 1 characters may be written, plus the null terminator |
| * @param[in] fmt Pointer to a null-terminated multibyte string specifying how to interpret the data. |
| * @param[in] args Arguments forwarded to snprintf. |
| * |
| * @return Number of characters that would have been written for a sufficiently large buffer |
| * if successful (not including the terminating null character), or a negative value if an error occurred. |
| */ |
| template <typename... Ts> |
| inline int snprintf(char *s, size_t n, const char *fmt, Ts &&... args) |
| { |
| return ::snprintf(s, n, fmt, std::forward<Ts>(args)...); |
| } |
| #else /* (__ANDROID__ || BARE_METAL) */ |
| /** Convert integer and float values to string. |
| * |
| * @note This function acts as a convenience wrapper around std::to_string. The |
| * latter is missing in some Android toolchains. |
| * |
| * @param[in] value Value to be converted to string. |
| * |
| * @return String representation of @p value. |
| */ |
| template <typename T> |
| inline std::string to_string(T &&value) |
| { |
| return ::std::to_string(std::forward<T>(value)); |
| } |
| |
| /** Convert string values to integer. |
| * |
| * @note This function acts as a convenience wrapper around std::stoi. The |
| * latter is missing in some Android toolchains. |
| * |
| * @param[in] args Arguments forwarded to std::stoi. |
| * |
| * @return Integer representation of input string. |
| */ |
| template <typename... Ts> |
| int stoi(Ts &&... args) |
| { |
| return ::std::stoi(std::forward<Ts>(args)...); |
| } |
| |
| /** Convert string values to unsigned long. |
| * |
| * @note This function acts as a convenience wrapper around std::stoul. The |
| * latter is missing in some Android toolchains. |
| * |
| * @param[in] args Arguments forwarded to std::stoul. |
| * |
| * @return Unsigned long representation of input string. |
| */ |
| template <typename... Ts> |
| int stoul(Ts &&... args) |
| { |
| return ::std::stoul(std::forward<Ts>(args)...); |
| } |
| |
| /** Convert string values to float. |
| * |
| * @note This function acts as a convenience wrapper around std::stof. The |
| * latter is missing in some Android toolchains. |
| * |
| * @param[in] args Arguments forwarded to std::stof. |
| * |
| * @return Float representation of input string. |
| */ |
| template <typename... Ts> |
| int stof(Ts &&... args) |
| { |
| return ::std::stof(std::forward<Ts>(args)...); |
| } |
| |
| /** Round floating-point value with half value rounding away from zero. |
| * |
| * @note This function implements the same behaviour as std::round except that it doesn't |
| * support Integral type. The latter is not in the namespace std in some Android toolchains. |
| * |
| * @param[in] value floating-point value to be rounded. |
| * |
| * @return Floating-point value of rounded @p value. |
| */ |
| template <typename T, typename = typename std::enable_if<std::is_floating_point<T>::value>::type> |
| inline T round(T value) |
| { |
| //Workaround Valgrind's mismatches: when running from Valgrind the call to std::round(-4.500000) == -4.000000 instead of 5.00000 |
| return (value < 0.f) ? static_cast<int>(value - 0.5f) : static_cast<int>(value + 0.5f); |
| } |
| |
| /** Truncate floating-point value. |
| * |
| * @note This function implements the same behaviour as std::truncate except that it doesn't |
| * support Integral type. The latter is not in the namespace std in some Android toolchains. |
| * |
| * @param[in] value floating-point value to be truncated. |
| * |
| * @return Floating-point value of truncated @p value. |
| */ |
| template <typename T, typename = typename std::enable_if<std::is_floating_point<T>::value>::type> |
| inline T trunc(T value) |
| { |
| return std::trunc(value); |
| } |
| |
| /** Composes a floating point value with the magnitude of @p x and the sign of @p y. |
| * |
| * @note This function implements the same behaviour as std::copysign except that it doesn't |
| * support Integral type. The latter is not in the namespace std in some Android toolchains. |
| * |
| * @param[in] x value that contains the magnitude to be used in constructing the result. |
| * @param[in] y value that contains the sign to be used in construct in the result. |
| * |
| * @return Floating-point value with magnitude of @p x and sign of @p y. |
| */ |
| template <typename T, typename = typename std::enable_if<std::is_floating_point<T>::value>::type> |
| inline T copysign(T x, T y) |
| { |
| return std::copysign(x, y); |
| } |
| |
| /** Loads the data from the given location, converts them to character string equivalents |
| * and writes the result to a character string buffer. |
| * |
| * @param[in] s Pointer to a character string to write to |
| * @param[in] n Up to buf_size - 1 characters may be written, plus the null terminator |
| * @param[in] fmt Pointer to a null-terminated multibyte string specifying how to interpret the data. |
| * @param[in] args Arguments forwarded to std::snprintf. |
| * |
| * @return Number of characters that would have been written for a sufficiently large buffer |
| * if successful (not including the terminating null character), or a negative value if an error occurred. |
| */ |
| template <typename... Ts> |
| inline int snprintf(char *s, std::size_t n, const char *fmt, Ts &&... args) |
| { |
| return std::snprintf(s, n, fmt, std::forward<Ts>(args)...); |
| } |
| #endif /* (__ANDROID__ || BARE_METAL) */ |
| |
| inline std::string to_string(bool value) |
| { |
| std::stringstream str; |
| str << std::boolalpha << value; |
| return str.str(); |
| } |
| |
| // std::align is missing in GCC 4.9 |
| // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57350 |
| inline void *align(std::size_t alignment, std::size_t size, void *&ptr, std::size_t &space) |
| { |
| std::uintptr_t pn = reinterpret_cast<std::uintptr_t>(ptr); |
| std::uintptr_t aligned = (pn + alignment - 1) & -alignment; |
| std::size_t padding = aligned - pn; |
| if(space < size + padding) |
| { |
| return nullptr; |
| } |
| |
| space -= padding; |
| |
| return ptr = reinterpret_cast<void *>(aligned); |
| } |
| |
| // std::isfinite |
| template <typename T, typename = typename std::enable_if<std::is_arithmetic<T>::value>::type> |
| inline bool isfinite(T value) |
| { |
| return std::isfinite(value); |
| } |
| |
| inline bool isfinite(half_float::half value) |
| { |
| return half_float::isfinite(value); |
| } |
| } // namespace cpp11 |
| |
| namespace cpp14 |
| { |
| /** make_unique is missing in CPP11. Re-implement it according to the standard proposal. */ |
| |
| /**<Template for single object */ |
| template <class T> |
| struct _Unique_if |
| { |
| typedef std::unique_ptr<T> _Single_object; /**< Single object type */ |
| }; |
| |
| /** Template for array */ |
| template <class T> |
| struct _Unique_if<T[]> |
| { |
| typedef std::unique_ptr<T[]> _Unknown_bound; /**< Array type */ |
| }; |
| |
| /** Template for array with known bounds (to throw an error). |
| * |
| * @note this is intended to never be hit. |
| */ |
| template <class T, size_t N> |
| struct _Unique_if<T[N]> |
| { |
| typedef void _Known_bound; /**< Should never be used */ |
| }; |
| |
| /** Construct a single object and return a unique pointer to it. |
| * |
| * @param[in] args Constructor arguments. |
| * |
| * @return a unique pointer to the new object. |
| */ |
| template <class T, class... Args> |
| typename _Unique_if<T>::_Single_object |
| make_unique(Args &&... args) |
| { |
| return std::unique_ptr<T>(new T(std::forward<Args>(args)...)); |
| } |
| |
| /** Construct an array of objects and return a unique pointer to it. |
| * |
| * @param[in] n Array size |
| * |
| * @return a unique pointer to the new array. |
| */ |
| template <class T> |
| typename _Unique_if<T>::_Unknown_bound |
| make_unique(size_t n) |
| { |
| typedef typename std::remove_extent<T>::type U; |
| return std::unique_ptr<T>(new U[n]()); |
| } |
| |
| /** It is invalid to attempt to make_unique an array with known bounds. */ |
| template <class T, class... Args> |
| typename _Unique_if<T>::_Known_bound |
| make_unique(Args &&...) = delete; |
| } // namespace cpp14 |
| } // namespace support |
| } // namespace arm_compute |
| #endif /* ARM_COMPUTE_TEST_TOOLCHAINSUPPORT */ |