Generated by Cython 0.12.1 on Sun Jul 18 10:58:16 2010

Raw output: _Users_wstein__sage_sage_notebook_sagenb_home_admin_478_code_sage69_spyx_0.c

 1: 

 2: include "interrupt.pxi"  # ctrl-c interrupt block support

 3: include "stdsage.pxi"  # ctrl-c interrupt block support

 4: 

 5: include "cdefs.pxi"

 6: def trial_division_cython4(unsigned long n):

static PyObject *__pyx_pf_74_Users_wstein__sage_sage_notebook_sagenb_home_admin_478_code_sage69_spyx_0_trial_division_cython4(PyObject *__pyx_self, PyObject *__pyx_arg_n); /*proto*/
static char __pyx_doc_74_Users_wstein__sage_sage_notebook_sagenb_home_admin_478_code_sage69_spyx_0_trial_division_cython4[] = "File: _Users_wstein__sage_sage_notebook_sagenb_home_admin_478_code_sage69_spyx_0.pyx (starting at line 6)";
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  unsigned long __pyx_v_n;
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 7:     if n == 1: return 1

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 8:     cdef unsigned long p

 9:     if n%2==0: return 2

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 10:     if n%3==0: return 3

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 11:     if n%5==0: return 5

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  __pyx_L8:;

 12:     # Algorithm: only trial divide by numbers that

 13:     # are congruent to 1,7,11,13,17,29,23,29 mod 30=2*3*5.

 14:     cdef unsigned long dif[8]

 15:     dif[0]=6;dif[1]=4;dif[2]=2;dif[3]=4;dif[4]=2;dif[5]=4;dif[6]=6;dif[7]=2

    (__pyx_v_dif[0]) = 6;
  (__pyx_v_dif[1]) = 4;
  (__pyx_v_dif[2]) = 2;
  (__pyx_v_dif[3]) = 4;
  (__pyx_v_dif[4]) = 2;
  (__pyx_v_dif[5]) = 4;
  (__pyx_v_dif[6]) = 6;
  (__pyx_v_dif[7]) = 2;

 16:     cdef unsigned long m = 7, i = 1

    __pyx_v_m = 7;
  __pyx_v_i = 1;

 17:     while m*m <= n:

    while (1) {
    __pyx_t_1 = ((__pyx_v_m * __pyx_v_m) <= __pyx_v_n);
    if (!__pyx_t_1) break;

 18:         if n%m == 0: return m

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 19:         m += dif[i%8]

        __pyx_v_m += (__pyx_v_dif[(__pyx_v_i % 8)]);

 20:         i += 1

        __pyx_v_i += 1;
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 21:     return n

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