diff options
Diffstat (limited to 'src/import/generic/memory')
| -rw-r--r-- | src/import/generic/memory/lib/utils/mss_math.H | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/src/import/generic/memory/lib/utils/mss_math.H b/src/import/generic/memory/lib/utils/mss_math.H index b4eca9485..fc9a9eb7d 100644 --- a/src/import/generic/memory/lib/utils/mss_math.H +++ b/src/import/generic/memory/lib/utils/mss_math.H @@ -44,11 +44,33 @@ namespace mss /// // TODO RTC:174277 - create unit test structure for generic/memory template<typename T > -inline constexpr T inclusive_range( const T i_start, const T i_end) +inline constexpr T inclusive_range( const T i_start, const T i_end ) { return (i_end - i_start) + 1; } +/// +/// @brief Poor man's round half away from 0 +/// @param[in] i_input starting point +/// @return rounded int64_t value +/// @note HB doesn't have std::round, referenced from: +/// https://stackoverflow.com/questions/4572556/concise-way-to-implement-round-in-c +/// +inline int64_t round_half_away_from_zero( const double i_input ) +{ + // Casting to avoid comparison of diff data types + // Explicitly casting INT64_MAX to avoid truncation of casting + // floating point to integer + if( i_input > static_cast<double>(INT64_MAX) ) + { + FAPI_ERR("Invalid input greater than %d", INT64_MAX); + fapi2::Assert(false); + } + + return ( i_input < 0.0 ? static_cast<int64_t>(i_input - 0.5) : static_cast<int64_t>(i_input + 0.5) ); +} + + }// mss #endif |
