.. _program_listing_file_include_embers_rand_lcgparkmiller_impl.h:

Program Listing for File lcgparkmiller_impl.h
=============================================

|exhale_lsh| :ref:`Return to documentation for file <file_include_embers_rand_lcgparkmiller_impl.h>` (``include/embers/rand/lcgparkmiller_impl.h``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   /* Copyright © 2020 Advanced Micro Devices, Inc. All rights reserved */
   
   #ifndef _EMBERS_LCGPARKMILLER_IMPL_H_
   #define _EMBERS_LCGPARKMILLER_IMPL_H_
   
   #include <cstdint>
   
   #include <hip/hip_runtime.h>
   namespace embers
   {
   namespace rand
   {
   
   __host__ uint32_t lcg_parkmiller(uint32_t *state)
   {
     uint64_t product = (uint64_t)*state * 48271;
     uint32_t x = (product & 0x7fffffff) + (product >> 31);
     x = (x & 0x7ffffffff) + (x >> 31);
     *state = x;
     return x;
   }
   }  // namespace rand
   }  // namespace embers
   
   #endif  // _EMBERS_LCGPARKMILLER_IMPL_H_