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paddlepaddle--paddle/paddle/phi/kernels/funcs/uniform_real_distribution.h
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2026-07-13 12:40:42 +08:00

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// Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#pragma once
#include <memory>
#include <random>
#include "paddle/phi/common/data_type.h"
namespace phi {
template <typename T>
inline void UniformRealDistribution(T *data,
const int64_t &size,
const float &min,
const float &max,
std::shared_ptr<std::mt19937_64> engine) {
std::uniform_real_distribution<T> dist(static_cast<T>(min),
static_cast<T>(max));
for (int64_t i = 0; i < size; ++i) {
data[i] = dist(*engine);
}
}
template <>
inline void UniformRealDistribution(phi::bfloat16 *data,
const int64_t &size,
const float &min,
const float &max,
std::shared_ptr<std::mt19937_64> engine) {
std::uniform_real_distribution<float> dist(min, max);
for (int64_t i = 0; i < size; ++i) {
data[i] = static_cast<phi::bfloat16>(dist(*engine));
}
}
template <>
inline void UniformRealDistribution(phi::float16 *data,
const int64_t &size,
const float &min,
const float &max,
std::shared_ptr<std::mt19937_64> engine) {
std::uniform_real_distribution<float> dist(min, max);
for (int64_t i = 0; i < size; ++i) {
data[i] = static_cast<phi::float16>(dist(*engine));
}
}
} // namespace phi