
    MZd                     f    d dl Z d dlmZ d dlmZ d dlmZ  ed      Z ed      ZddgZ	dd	Z
d
 Zy)    N)import_module)skip)compile_link_import_stringsnumpycython)z	sigmoid.cz
#include <math.h>

void sigmoid(int n, const double * const restrict in,
             double * const restrict out, double lim){
    for (int i=0; i<n; ++i){
        const double x = in[i];
        out[i] = x*pow(pow(x/lim, 8)+1, -1./8.);
    }
}
)z_sigmoid.pyxaw  
import numpy as np
cimport numpy as cnp

cdef extern void c_sigmoid "sigmoid" (int, const double * const,
                                      double * const, double)

def sigmoid(double [:] inp, double lim=350.0):
    cdef cnp.ndarray[cnp.float64_t, ndim=1] out = np.empty(
        inp.size, dtype=np.float64)
    c_sigmoid(inp.size, &inp[0], &out[0], lim)
    return out
c                 $    | | |z  dz  dz   dz  z  S )N      g      ? )datalims     U/usr/lib/python3/dist-packages/sympy/utilities/_compilation/tests/test_compilation.pynpyr   &   s    $s(QqD)))    c                     t         st        d       t        st        d       ddlm}   |        st        d       dt         j                         gd}d }	 t        t        |      \  }}t         j                  j                  d	      }|j                  |      }t        |      }t         j                  ||      sJ 	 |r|d
   rt        j                  |d
          y y y # |r|d
   rt        j                  |d
          w w w xY w)Nznumpy not installed.zcython not installed.r   )has_czNo C compiler found.c99)stdinclude_dirs)compile_kwargsi   	build_dir)r   r   r   sympy.utilities._compilationr   get_includer   	_sources1randomsigmoidr   allcloseshutilrmtree)r   
compile_kwinfomodr   res_modres_npys          r    test_compile_link_import_stringsr%   *   s    #$$%27#$1B1B1D0EFJD-/	*U	T||"";/++d#d)~~gw///D%MM${+, &44D%MM${+, &4s   A'C   #D)g     u@)r   sympy.externalr   sympy.testing.pytestr   (sympy.utilities._compilation.compilationr   r   r   r   r   r%   r   r   r   <module>r)      s@     ( % Pg	x	 
	8*-r   