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3a66a1cb99
Summary: Add cppcoreguidelines-avoid-magic-numbers exclusion to clang-tidy Remove existing nolint warnings using following script: ``` for file in `git ls-files | grep -v \.py`; do gsed '/^ *\/\/ NOLINTNEXTLINE(cppcoreguidelines-avoid-magic-numbers)/d' -i $file; done ``` Pull Request resolved: https://github.com/pytorch/pytorch/pull/57841 Reviewed By: samestep Differential Revision: D28295045 Pulled By: malfet fbshipit-source-id: 7c6e8d1213c9593f169ed3df6a916498f1a97163
36 lines
986 B
C++
36 lines
986 B
C++
#include "sigmoid.h"
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namespace dnnlowp {
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using namespace std;
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// NOLINTNEXTLINE(cppcoreguidelines-pro-type-member-init)
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template <typename T>
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Sigmoid<T>::Sigmoid(double max_abs_err) : tanh_(max_abs_err) {
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float x_sq = tanh_.GetSaturationRegionBegin();
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in_qparams_.scale = 2 * x_sq / ((1 << (num_in_bits_ - 1)) - 1);
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in_qparams_.zero_point = 1 << (num_in_bits_ - 1);
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in_qparams_.precision = num_in_bits_;
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// -2 x_sq is mapped to -127, 0 is mapped to 0, 2 x_sq is mapped to 127
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out_qparams_.scale = 0.5 / ((1 << (num_out_bits_ - 1)) - 1);
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out_qparams_.zero_point = 0;
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out_qparams_.precision = num_out_bits_;
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// 0 is mapped to 0, 1/2 is mapped to 127, 1 is mapped to 254
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}
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template <typename T>
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T Sigmoid<T>::Compute(T x) const {
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T temp = tanh_.Compute(x);
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assert(temp >= 1);
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assert(temp < (1 << num_out_bits_));
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return temp - 1;
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}
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template class Sigmoid<uint8_t>;
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template class Sigmoid<uint16_t>;
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template class Sigmoid<int32_t>;
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} // namespace dnnlowp
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