wehub-resource-sync
54 lines
1.7 KiB
C++
54 lines
1.7 KiB
C++
// Copyright (c) 2023 CINN Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "paddle/cinn/utils/random_engine.h"
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namespace cinn {
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namespace utils {
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// Sample Integers from uniform distribution [min, max)
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int SampleUniformInt(int min,
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int max,
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LinearRandomEngine::StateType* rand_seed) {
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PADDLE_ENFORCE_EQ(
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min < max,
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true,
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::common::errors::InvalidArgument(
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"Input value error: min(%d) must be less than max(%d)", min, max));
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if (min + 1 == max) {
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return min;
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}
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LinearRandomEngine engine(rand_seed);
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std::uniform_int_distribution<> dist(min, max - 1);
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return dist(engine);
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}
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// Sample Real Numbers from uniform distribution [min, max)
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double SampleUniformDouble(double min,
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double max,
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LinearRandomEngine::StateType* rand_seed) {
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PADDLE_ENFORCE_EQ(
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min < max,
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true,
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::common::errors::InvalidArgument(
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"Input value error: min(%f) must be less than max(%f)", min, max));
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LinearRandomEngine engine(rand_seed);
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std::uniform_real_distribution<> dist(min, max);
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return dist(engine);
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}
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} // namespace utils
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} // namespace cinn
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