| 1 | /* ----------------------------------------------------------------------------- |
| 2 | * carrays.i |
| 3 | * |
| 4 | * Author(s): David Beazley (beazley@cs.uchicago.edu) |
| 5 | * |
| 6 | * This library file contains macros that can be used to manipulate simple |
| 7 | * pointers as arrays. |
| 8 | * |
| 9 | * $Header: /cvsroot/swig/SWIG/Lib/carrays.i,v 1.5 2004/10/06 16:51:19 marcelomatus Exp $ |
| 10 | * ----------------------------------------------------------------------------- */ |
| 11 | |
| 12 | /* ----------------------------------------------------------------------------- |
| 13 | * %array_functions(TYPE,NAME) |
| 14 | * |
| 15 | * Generates functions for creating and accessing elements of a C array |
| 16 | * (as pointers). Creates the following functions: |
| 17 | * |
| 18 | * TYPE *new_NAME(int nelements) |
| 19 | * void delete_NAME(TYPE *); |
| 20 | * TYPE NAME_getitem(TYPE *, int index); |
| 21 | * void NAME_setitem(TYPE *, int index, TYPE value); |
| 22 | * |
| 23 | * ----------------------------------------------------------------------------- */ |
| 24 | |
| 25 | %define %array_functions(TYPE,NAME) |
| 26 | %{ |
| 27 | static TYPE *new_##NAME(int nelements) { %} |
| 28 | #ifdef __cplusplus |
| 29 | %{ return new TYPE[nelements]; %} |
| 30 | #else |
| 31 | %{ return (TYPE *) calloc(nelements,sizeof(TYPE)); %} |
| 32 | #endif |
| 33 | %{} |
| 34 | |
| 35 | static void delete_##NAME(TYPE *ary) { %} |
| 36 | #ifdef __cplusplus |
| 37 | %{ delete [] ary; %} |
| 38 | #else |
| 39 | %{ free(ary); %} |
| 40 | #endif |
| 41 | %{} |
| 42 | |
| 43 | static TYPE NAME##_getitem(TYPE *ary, int index) { |
| 44 | return ary[index]; |
| 45 | } |
| 46 | static void NAME##_setitem(TYPE *ary, int index, TYPE value) { |
| 47 | ary[index] = value; |
| 48 | } |
| 49 | %} |
| 50 | |
| 51 | TYPE *new_##NAME(int nelements); |
| 52 | void delete_##NAME(TYPE *ary); |
| 53 | TYPE NAME##_getitem(TYPE *ary, int index); |
| 54 | void NAME##_setitem(TYPE *ary, int index, TYPE value); |
| 55 | |
| 56 | %enddef |
| 57 | |
| 58 | |
| 59 | /* ----------------------------------------------------------------------------- |
| 60 | * %array_class(TYPE,NAME) |
| 61 | * |
| 62 | * Generates a class wrapper around a C array. The class has the following |
| 63 | * interface: |
| 64 | * |
| 65 | * struct NAME { |
| 66 | * NAME(int nelements); |
| 67 | * ~NAME(); |
| 68 | * TYPE getitem(int index); |
| 69 | * void setitem(int index, TYPE value); |
| 70 | * TYPE * cast(); |
| 71 | * static NAME *frompointer(TYPE *t); |
| 72 | * } |
| 73 | * |
| 74 | * ----------------------------------------------------------------------------- */ |
| 75 | |
| 76 | %define %array_class(TYPE,NAME) |
| 77 | %{ |
| 78 | typedef TYPE NAME; |
| 79 | %} |
| 80 | typedef struct NAME { |
| 81 | /* Put language specific enhancements here */ |
| 82 | |
| 83 | #if defined(SWIGPYTHON) || defined(SWIGRUBY) |
| 84 | %rename(__getitem__) getitem; |
| 85 | %rename(__setitem__) setitem; |
| 86 | #endif |
| 87 | } NAME; |
| 88 | |
| 89 | %extend NAME { |
| 90 | |
| 91 | #ifdef __cplusplus |
| 92 | NAME(int nelements) { |
| 93 | return new TYPE[nelements]; |
| 94 | } |
| 95 | ~NAME() { |
| 96 | delete [] self; |
| 97 | } |
| 98 | #else |
| 99 | NAME(int nelements) { |
| 100 | return (TYPE *) calloc(nelements,sizeof(TYPE)); |
| 101 | } |
| 102 | ~NAME() { |
| 103 | free(self); |
| 104 | } |
| 105 | #endif |
| 106 | |
| 107 | TYPE getitem(int index) { |
| 108 | return self[index]; |
| 109 | } |
| 110 | void setitem(int index, TYPE value) { |
| 111 | self[index] = value; |
| 112 | } |
| 113 | TYPE * cast() { |
| 114 | return self; |
| 115 | } |
| 116 | static NAME *frompointer(TYPE *t) { |
| 117 | return (NAME *) t; |
| 118 | } |
| 119 | |
| 120 | }; |
| 121 | |
| 122 | %types(NAME = TYPE); |
| 123 | |
| 124 | %enddef |
| 125 | |