foreach-ext             package:foreach             R Documentation

_F_o_r_e_a_c_h _E_x_t_e_n_s_i_o_n _F_u_n_c_t_i_o_n_s

_D_e_s_c_r_i_p_t_i_o_n:

     These functions are used to write parallel backends for the
     'foreach' package.  They should not be used from normal scripts or
     packages that use the 'foreach' package.

_U_s_a_g_e:

     makeAccum(it)
     getexports(ex, e, env, good=character(0), bad=character(0))
     getResult(obj, ...)
     getErrorValue(obj, ...)
     getErrorIndex(obj, ...)

_A_r_g_u_m_e_n_t_s:

      it: foreach iterator.

      ex: call object to analyze.

       e: local environment of the call object.

     env: exported environment in which call object will be evaluated.

    good: names of symbols that are being exported.

     bad: names of symbols that are not being exported.

     obj: foreach iterator object.

     ...: unused.

_N_o_t_e:

     These functions are likely to change in future versions of the
     'foreach' package.  When they become more stable, they will be
     documented.

