hunk.code_window: A promise that resolves to an object of type [PermissionResponse](../permissions/#permissionresponse).
   ### `MediaLibrary.createAssetAsync(localUri)`
   Creates an asset from existing file. The most common use case is to save a picture taken by [Camera](../camera/).
   ```js
   const { uri } = await Camera.takePictureAsync();
   const asset = await MediaLibrary.createAssetAsync(uri);
   ```
  
hunk.labels: keep keep keep keep replace keep keep keep keep keep
hunk.after_edit: Creates an asset from existing file. The most common use case is to save a picture taken by [Camera](../camera/). This method requires `CAMERA_ROLL` permission.
  
hunk.file_path: docs/pages/versions/v38.0.0/sdk/media-library.md
hunk.type: replace
file: //  Copyright (c) 2006 Xiaogang Zhang
  //  Use, modification and distribution are subject to the
  //  Boost Software License, Version 1.0. (See accompanying file
  //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  
  #ifndef BOOST_MATH_BESSEL_Y1_HPP
  #define BOOST_MATH_BESSEL_Y1_HPP
  
  #ifdef _MSC_VER
  #pragma once
  #pragma warning(push)
  #pragma warning(disable:4702) // Unreachable code (release mode only warning)
  #endif
  
  #include <boost/math/special_functions/detail/bessel_j1.hpp>
  #include <boost/math/constants/constants.hpp>
  #include <boost/math/tools/rational.hpp>
  #include <boost/math/tools/big_constant.hpp>
  #include <boost/math/policies/error_handling.hpp>
  #include <boost/assert.hpp>
  
  // Bessel function of the second kind of order one
  // x <= 8, minimax rational approximations on root-bracketing intervals
  // x > 8, Hankel asymptotic expansion in Hart, Computer Approximations, 1968
  
  namespace boost { namespace math { namespace detail{
  
  template <typename T, typename Policy>
  T bessel_y1(T x, const Policy&);
  
  template <class T, class Policy>
  struct bessel_y1_initializer
  {
     struct init
     {
        init()
        {
           do_init();
        }
        static void do_init()
        {
           bessel_y1(T(1), Policy());
        }
        void force_instantiate()const{}
     };
     static const init initializer;
     static void force_instantiate()
     {
        initializer.force_instantiate();
     }
  };
  
  template <class T, class Policy>
  const typename bessel_y1_initializer<T, Policy>::init bessel_y1_initializer<T, Policy>::initializer;
  
  template <typename T, typename Policy>
  T bessel_y1(T x, const Policy& pol)
  {
      bessel_y1_initializer<T, Policy>::force_instantiate();
  
      static const T P1[] = {
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 4.0535726612579544093e+13)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 5.4708611716525426053e+12)),
          static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, -3.7595974497819597599e+11)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 7.2144548214502560419e+09)),
          static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, -5.9157479997408395984e+07)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 2.2157953222280260820e+05)),
          static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, -3.1714424660046133456e+02)),
      };
      static const T Q1[] = {
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 3.0737873921079286084e+14)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 4.1272286200406461981e+12)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 2.7800352738690585613e+10)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 1.2250435122182963220e+08)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 3.8136470753052572164e+05)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 8.2079908168393867438e+02)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 1.0)),
      };
      static const T P2[] = {
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 1.1514276357909013326e+19)),
          static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, -5.6808094574724204577e+18)),
          static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, -2.3638408497043134724e+16)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 4.0686275289804744814e+15)),
          static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, -5.9530713129741981618e+13)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 3.7453673962438488783e+11)),
          static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, -1.1957961912070617006e+09)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 1.9153806858264202986e+06)),
          static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, -1.2337180442012953128e+03)),
      };
      static const T Q2[] = {
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 5.3321844313316185697e+20)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 5.6968198822857178911e+18)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 3.0837179548112881950e+16)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 1.1187010065856971027e+14)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 3.0221766852960403645e+11)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 6.3550318087088919566e+08)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 1.0453748201934079734e+06)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 1.2855164849321609336e+03)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 1.0)),
      };
      static const T PC[] = {
          static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, -4.4357578167941278571e+06)),
          static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, -9.9422465050776411957e+06)),
          static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, -6.6033732483649391093e+06)),
          static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, -1.5235293511811373833e+06)),
          static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, -1.0982405543459346727e+05)),
          static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, -1.6116166443246101165e+03)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 0.0)),
      };
      static const T QC[] = {
          static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, -4.4357578167941278568e+06)),
          static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, -9.9341243899345856590e+06)),
          static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, -6.5853394797230870728e+06)),
          static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, -1.5118095066341608816e+06)),
          static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, -1.0726385991103820119e+05)),
          static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, -1.4550094401904961825e+03)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 1.0)),
      };
      static const T PS[] = {
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 3.3220913409857223519e+04)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 8.5145160675335701966e+04)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 6.6178836581270835179e+04)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 1.8494262873223866797e+04)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 1.7063754290207680021e+03)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 3.5265133846636032186e+01)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 0.0)),
      };
      static const T QS[] = {
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 7.0871281941028743574e+05)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 1.8194580422439972989e+06)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 1.4194606696037208929e+06)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 4.0029443582266975117e+05)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 3.7890229745772202641e+04)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 8.6383677696049909675e+02)),
           static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 1.0)),
      };
      static const T x1  =  static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 2.1971413260310170351e+00)),
                     x2  =  static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 5.4296810407941351328e+00)),
                     x11 =  static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 5.620e+02)),
                     x12 =  static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 1.8288260310170351490e-03)),
                     x21 =  static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, 1.3900e+03)),
                     x22 = static_cast<T>(BOOST_MATH_BIG_CONSTANT(T, 64, -6.4592058648672279948e-06))
      ;
      T value, factor, r, rc, rs;
  
      BOOST_MATH_STD_USING
      using namespace boost::math::tools;
      using namespace boost::math::constants;
  
      if (x <= 0)
      {
         return policies::raise_domain_error<T>("bost::math::bessel_y1<%1%>(%1%,%1%)",
              "Got x == %1%, but x must be > 0, complex result not supported.", x, pol);
      }
      if (x <= 4)                       // x in (0, 4]
      {
          T y = x * x;
          T z = 2 * log(x/x1) * bessel_j1(x) / pi<T>();
          r = evaluate_rational(P1, Q1, y);
          factor = (x + x1) * ((x - x11/256) - x12) / x;
          value = z + factor * r;
      }
      else if (x <= 8)                  // x in (4, 8]
      {
          T y = x * x;
          T z = 2 * log(x/x2) * bessel_j1(x) / pi<T>();
          r = evaluate_rational(P2, Q2, y);
          factor = (x + x2) * ((x - x21/256) - x22) / x;
          value = z + factor * r;
      }
      else                                // x in (8, \infty)
      {
          T y = 8 / x;
          T y2 = y * y;
          rc = evaluate_rational(PC, QC, y2);
          rs = evaluate_rational(PS, QS, y2);
          factor = 1 / (sqrt(x) * root_pi<T>());
          //
          // This code is really just:
          //
          // T z = x - 0.75f * pi<T>();
          // value = factor * (rc * sin(z) + y * rs * cos(z));
          //
          // But using the sin/cos addition rules, plus constants for sin/cos of 3PI/4
          // which then cancel out with corresponding terms in "factor".
          //
          T sx = sin(x);
          T cx = cos(x);
          value = factor * (y * rs * (sx - cx) - rc * (sx + cx));
      }
  
      return value;
  }
  
  }}} // namespaces
  
  #ifdef _MSC_VER
  #pragma warning(pop)
  #endif
  
  #endif // BOOST_MATH_BESSEL_Y1_HPP
  
  