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- /*
- ---------------------------------------------------------------------------
- Open Asset Import Library (assimp)
- ---------------------------------------------------------------------------
- Copyright (c) 2006-2025, assimp team
- All rights reserved.
- Redistribution and use of this software in source and binary forms,
- with or without modification, are permitted provided that the following
- conditions are met:
- * Redistributions of source code must retain the above
- copyright notice, this list of conditions and the
- following disclaimer.
- * Redistributions in binary form must reproduce the above
- copyright notice, this list of conditions and the
- following disclaimer in the documentation and/or other
- materials provided with the distribution.
- * Neither the name of the assimp team, nor the names of its
- contributors may be used to endorse or promote products
- derived from this software without specific prior
- written permission of the assimp team.
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- ---------------------------------------------------------------------------
- */
- #ifndef ASSIMP_RANDOM_NUMBER_GENERATION_H
- #define ASSIMP_RANDOM_NUMBER_GENERATION_H
- #include <random>
- namespace Assimp {
- /** Helper class to use for generating pseudo-random
- * real numbers, with a uniform distribution. */
- template<typename T>
- class RandomUniformRealGenerator {
- public:
- RandomUniformRealGenerator() :
- dist_(),
- rd_(),
- re_(rd_()) {
- // empty
- }
- RandomUniformRealGenerator(T min, T max) :
- dist_(min, max),
- rd_(),
- re_(rd_()) {
- // empty
- }
- inline T next() {
- return dist_(re_);
- }
- private:
- std::uniform_real_distribution<T> dist_;
- std::random_device rd_;
- std::default_random_engine re_;
- };
- using RandomUniformFloatGenerator = RandomUniformRealGenerator<float>;
- }
- #endif // ASSIMP_RANDOM_NUMBER_GENERATION_H
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