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

   1 /* -*-c-*-
   2  *
   3  * $Id$
   4  *
   5  * Vectors and arrays in Tcl
   6  *
   7  * (c) 2003 Mark Wooding
   8  */
   9
  10 /*----- Licensing notice --------------------------------------------------*
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 2 of the License, or
  15  * (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software Foundation,
  24  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  25  */
  26
  27 #ifndef VEC_H
  28 #define VEC_H
  29
  30 #ifdef __cplusplus
  31   extern "C" {
  32 #endif
  33
  34 /*----- Header files ------------------------------------------------------*/
  35
  36 #include <stddef.h>
  37
  38 #include <tcl.h>
  39
  40 /*----- Data structures ---------------------------------------------------*/
  41
  42 typedef struct vec_bound { long lo, hi; } vec_bound;
  43 typedef struct vec {
  44   Tcl_Command c;
  45   size_t ndim;
  46   vec_bound *dim;
  47   size_t n;
  48   Tcl_Obj **v;
  49 } vec;
  50
  51 /*----- Functions provided ------------------------------------------------*/
  52
  53 /* --- @vec_find@ --- *
  54  *
  55  * Arguments:   @Tcl_Interp *ti@ = interpreter vector exists in
  56  *              @Tcl_Obj *o@ = object containing the command name
  57  *
  58  * Returns:     A pointer to the vector, or null.
  59  *
  60  * Use:         Finds the vector with a given name.
  61  */
  62
  63 extern vec *vec_find(Tcl_Interp */*ti*/, Tcl_Obj */*o*/);
  64
  65 /* --- @vec_index@ --- *
  66  *
  67  * Arguments:   @Tcl_Interp *ti@ = interpreter to put errors in
  68  *              @vec *v@ = the vector
  69  *              @int objc@ = number of indices provided
  70  *              @Tcl_Obj *const *objv@ = vector of objects
  71  *
  72  * Returns:     Address of the object pointer, or null.
  73  *
  74  * Use:         Looks up an index in a vector.
  75  */
  76
  77 extern Tcl_Obj **vec_index(Tcl_Interp */*ti*/, vec */*v*/,
  78                            int /*objc*/, Tcl_Obj *const */*objv*/);
  79
  80 /* --- @vec_destroy@ --- *
  81  *
  82  * Arguments:   @Tcl_Interp *ti@ = owning interpreter
  83  *              @vec *v@ = vector pointer
  84  *
  85  * Returns:     ---
  86  *
  87  * Use:         Destroys a vector.
  88  */
  89
  90 extern void vec_destroy(Tcl_Interp */*ti*/, vec */*v*/);
  91
  92 /* --- @vec_create@ --- *
  93  *
  94  * Arguments:   @Tcl_Interp *ti@ = interpreter to create vector in
  95  *              @size_t ndim@ = number of dimensions
  96  *              @const vec_bound *dim@ = the actual dimensions
  97  *              @Tcl_Obj *init@ = initial value
  98  *
  99  * Returns:     A pointer to the vector, or null if it failed.
 100  *
 101  * Use:         Creates a new vector object.
 102  */
 103
 104 extern vec *vec_create(Tcl_Interp */*ti*/, size_t /*ndim*/,
 105                        const vec_bound */*dim*/, Tcl_Obj */*init*/);
 106
 107 /*----- That's all, folks -------------------------------------------------*/
 108
 109 #ifdef __cplusplus
 110   }
 111 #endif
 112
 113 #endif