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/*
* Copyright (c) 2017-2020 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_STRINGSUPPORT
#define ARM_COMPUTE_TEST_STRINGSUPPORT
#include <cassert>
#include <memory>
#include <sstream>
#include <string>
namespace arm_compute
{
namespace support
{
namespace cpp11
{
enum class NumericBase
{
BASE_10,
BASE_16
};
/** 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.
* @param[in] pos If idx is not a null pointer, the function sets the value of pos to the position of the first character in str after the number.
* @param[in] base Numeric base used to interpret the string.
*
* @return Integer representation of @p str.
*/
inline int stoi(const std::string &str, std::size_t *pos = 0, NumericBase base = NumericBase::BASE_10)
{
assert(base == NumericBase::BASE_10 || base == NumericBase::BASE_16);
unsigned int x;
std::stringstream ss;
if(base == NumericBase::BASE_16)
{
ss << std::hex;
}
ss << str;
ss >> x;
if(pos)
{
std::string s;
std::stringstream ss_p;
ss_p << x;
ss_p >> s;
*pos = s.length();
}
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.
* @param[in] pos If idx is not a null pointer, the function sets the value of pos to the position of the first character in str after the number.
* @param[in] base Numeric base used to interpret the string.
*
* @return Unsigned long representation of @p str.
*/
inline unsigned long stoul(const std::string &str, std::size_t *pos = 0, NumericBase base = NumericBase::BASE_10)
{
assert(base == NumericBase::BASE_10 || base == NumericBase::BASE_16);
std::stringstream stream;
unsigned long value = 0;
if(base == NumericBase::BASE_16)
{
stream << std::hex;
}
stream << str;
stream >> value;
if(pos)
{
std::string s;
std::stringstream ss_p;
ss_p << value;
ss_p >> s;
*pos = s.length();
}
return value;
}
#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 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;
}
#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 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)...);
}
#endif /* (__ANDROID__ || BARE_METAL) */
inline std::string to_string(bool value)
{
std::stringstream str;
str << std::boolalpha << value;
return str.str();
}
} // namespace cpp11
} // namespace support
} // namespace arm_compute
#endif /* ARM_COMPUTE_TEST_STRINGSUPPORT */
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