|                  SSSeeeccctttiiiooonnn 222 --- LLLiiibbbrrraaarrryyy SSSuuubbbppprrrooogggrrraaammmsss



                 A  complete  set  of  library  subroutines  is necessary for
            effective program development under the Subsystem.  The primitive
            operations suggested by Kernighan and Plauger in _S_o_f_t_w_a_r_e  _T_o_o_l_s,
            as well as many local functions, have been compiled and placed in
          | the libraries =lib=/vswtlb, =lib=/vswtmath, and =lib=/vshlib (for
          | V-mode programs).

                 This  section  is  designed  to  give  the  user  a  working
            knowledge of these functions and subroutines.  Each  routine  has
            its  own entry organized under the following headings.  Note that
            empty entries are omitted entirely.


                 _H_e_a_d_e_r _L_i_n_e

                      The subprogram's name, a synopsis of its  purpose,  and
                      the date of last modification to its documentation.

                 _C_a_l_l_i_n_g _I_n_f_o_r_m_a_t_i_o_n

                      The  subprogram declaration and the declarations of its
                      arguments, as well as the name of the library in  which
                      it  can  be  found.  This should be used as a reference
                      when constructing calls to a given routine.

                 _F_u_n_c_t_i_o_n

                      A description of the purpose of the routine, along with
                      the interpretations of its arguments and  the  returned
                      value (if any).

                 _I_m_p_l_e_m_e_n_t_a_t_i_o_n

                      A  short  discussion  of the strategy used to implement
                      the routine, abstracted from the source code.

                 _A_r_g_u_m_e_n_t_s _M_o_d_i_f_i_e_d

                      Names of those arguments modified by the routine.

                 _C_a_l_l_s

                      Other subprograms called by this routine.

                 _B_u_g_s

                      Known problems with the use of the routine.

                 _S_e_e _A_l_s_o

                      References to further information or related routines.



                                          - 1 -