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| author | Martin Braun <martin.braun@ettus.com> | 2017-01-04 07:36:51 -0800 |
|---|---|---|
| committer | Martin Braun <martin.braun@ettus.com> | 2017-01-04 07:36:51 -0800 |
| commit | f86f209b3370be54ec0870186ab1b9d8988736eb (patch) | |
| tree | 8a64cec1ab7b22af390240815e7ba86b4d9b7cf6 | |
| parent | 8bd2a5fae547fa1c23da2a78f4f5e61552c431d0 (diff) | |
| download | uhd-f86f209b3370be54ec0870186ab1b9d8988736eb.tar.gz uhd-f86f209b3370be54ec0870186ab1b9d8988736eb.tar.bz2 uhd-f86f209b3370be54ec0870186ab1b9d8988736eb.zip | |
utils: Fixed minor rounding issue in gain_group
| -rw-r--r-- | host/lib/utils/gain_group.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/host/lib/utils/gain_group.cpp b/host/lib/utils/gain_group.cpp index 9428702d1..71caf33be 100644 --- a/host/lib/utils/gain_group.cpp +++ b/host/lib/utils/gain_group.cpp @@ -39,7 +39,7 @@ static bool compare_by_step_size( * * Due to small doubleing-point inaccuracies: * num = n*step + e, where e is a small inaccuracy. - * When e is negative, floor would yeild (n-1)*step, + * When e is negative, floor would yield (n-1)*step, * despite that n*step is really the desired result. * This function is designed to mitigate that issue. * @@ -49,7 +49,11 @@ static bool compare_by_step_size( * \return a multiple of step approximating num */ template <typename T> static T floor_step(T num, T step, T e = T(0.001)){ - return step*int(num/step + e); + if (num < T(0)) { + return step*int(num/step - e); + } else { + return step*int(num/step + e); + } } gain_group::~gain_group(void){ |