mdw@git.distorted.org.uk Git - rocl/blob - vec.h

   1 /* -*-c-*-
   2  *
   3  * Vectors and arrays in Tcl
   4  *
   5  * (c) 2003 Mark Wooding
   6  */
   7
   8 /*----- Licensing notice --------------------------------------------------*
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software Foundation,
  22  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  23  */
  24
  25 #ifndef VEC_H
  26 #define VEC_H
  27
  28 #ifdef __cplusplus
  29   extern "C" {
  30 #endif
  31
  32 /*----- Header files ------------------------------------------------------*/
  33
  34 #include <stddef.h>
  35
  36 #include <tcl.h>
  37
  38 /*----- Data structures ---------------------------------------------------*/
  39
  40 typedef struct vec_bound { long lo, hi; } vec_bound;
  41 typedef struct vec {
  42   Tcl_Command c;
  43   size_t ndim;
  44   vec_bound *dim;
  45   size_t n;
  46   Tcl_Obj **v;
  47 } vec;
  48
  49 /*----- Functions provided ------------------------------------------------*/
  50
  51 /* --- @vec_find@ --- *
  52  *
  53  * Arguments:   @Tcl_Interp *ti@ = interpreter vector exists in
  54  *              @Tcl_Obj *o@ = object containing the command name
  55  *
  56  * Returns:     A pointer to the vector, or null.
  57  *
  58  * Use:         Finds the vector with a given name.
  59  */
  60
  61 extern vec *vec_find(Tcl_Interp */*ti*/, Tcl_Obj */*o*/);
  62
  63 /* --- @vec_index@ --- *
  64  *
  65  * Arguments:   @Tcl_Interp *ti@ = interpreter to put errors in
  66  *              @vec *v@ = the vector
  67  *              @int objc@ = number of indices provided
  68  *              @Tcl_Obj *const *objv@ = vector of objects
  69  *
  70  * Returns:     Address of the object pointer, or null.
  71  *
  72  * Use:         Looks up an index in a vector.
  73  */
  74
  75 extern Tcl_Obj **vec_index(Tcl_Interp */*ti*/, vec */*v*/,
  76                            int /*objc*/, Tcl_Obj *const */*objv*/);
  77
  78 /* --- @vec_destroy@ --- *
  79  *
  80  * Arguments:   @Tcl_Interp *ti@ = owning interpreter
  81  *              @vec *v@ = vector pointer
  82  *
  83  * Returns:     ---
  84  *
  85  * Use:         Destroys a vector.
  86  */
  87
  88 extern void vec_destroy(Tcl_Interp */*ti*/, vec */*v*/);
  89
  90 /* --- @vec_create@ --- *
  91  *
  92  * Arguments:   @Tcl_Interp *ti@ = interpreter to create vector in
  93  *              @size_t ndim@ = number of dimensions
  94  *              @const vec_bound *dim@ = the actual dimensions
  95  *              @Tcl_Obj *init@ = initial value
  96  *
  97  * Returns:     A pointer to the vector, or null if it failed.
  98  *
  99  * Use:         Creates a new vector object.
 100  */
 101
 102 extern vec *vec_create(Tcl_Interp */*ti*/, size_t /*ndim*/,
 103                        const vec_bound */*dim*/, Tcl_Obj */*init*/);
 104
 105 /*----- That's all, folks -------------------------------------------------*/
 106
 107 #ifdef __cplusplus
 108   }
 109 #endif
 110
 111 #endif