diff options
Diffstat (limited to 'support/ToolchainSupport.h')
-rw-r--r-- | support/ToolchainSupport.h | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/support/ToolchainSupport.h b/support/ToolchainSupport.h index e79084a629..d8c14411e8 100644 --- a/support/ToolchainSupport.h +++ b/support/ToolchainSupport.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2017-2020 Arm Limited. + * Copyright (c) 2017-2021 Arm Limited. * * SPDX-License-Identifier: MIT * @@ -72,6 +72,21 @@ inline T round(T value) return ::round(value); } +/** Round floating-point value with half value rounding away from zero and cast to long + * + * @note This function implements the same behaviour as std::lround 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 casted to long + */ +template <typename T, typename = typename std::enable_if<std::is_floating_point<T>::value>::type> +inline long lround(T value) +{ + return ::lround(value); +} + /** Truncate floating-point value. * * @note This function implements the same behaviour as std::truncate except that it doesn't @@ -172,6 +187,21 @@ inline T round(T value) return (value < 0.f) ? static_cast<int>(value - 0.5f) : static_cast<int>(value + 0.5f); } +/** Round floating-point value with half value rounding away from zero and cast to long + * + * @note This function implements the same behaviour as std::lround 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 casted to long + */ +template <typename T, typename = typename std::enable_if<std::is_floating_point<T>::value>::type> +inline long lround(T value) +{ + return std::lround(value); +} + /** Truncate floating-point value. * * @note This function implements the same behaviour as std::truncate except that it doesn't |