This file is indexed.

/usr/share/Yap/matrix.yap is in yap 6.2.2-6+b2.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
/*************************************************************************
*									 *
*	 YAP Prolog 							 *
*									 *
*	Yap Prolog was developed at NCCUP - Universidade do Porto	 *
*									 *
* Copyright L.Damas, V.S.Costa and Universidade do Porto 1985-2006	 *
*									 *
**************************************************************************
*									 *
* File:		matrix.yap						 *
* Last rev:								 *
* mods:									 *
* comments:	Have some fun with blobs				 *
*									 *
*************************************************************************/

/*
  A matrix is an object with integer or floating point numbers. A matrix
  may have a number of dimensions. These routines implement a number of
  routine manipulation procedures.

  matrix(Type,D1,D2,...,Dn,data(......))

  Type = int, float

  Operations:
  
typedef enum {
  MAT_SUM=0,
  MAT_SUB=1,
  MAT_TIMES=2,
  MAT_DIV=3,
  MAT_IDIV=4,
  MAT_ZDIV=5
} op_type;

  */

:- module( matrix,
	   [
	    matrix_new/3,
	    matrix_new/4,
	    matrix_new_set/4,
	    matrix_dims/2,
	    matrix_ndims/2,
	    matrix_size/2,
	    matrix_type/2,
	    matrix_to_list/2,
	    matrix_get/3,
	    matrix_set/3,
	    matrix_set_all/2,
	    matrix_add/3,
	    matrix_inc/2,
	    matrix_dec/2,
	    matrix_mult/2,
	    matrix_inc/3,
	    matrix_dec/3,
	    matrix_arg_to_offset/3,
	    matrix_offset_to_arg/3,
	    matrix_max/2,
	    matrix_maxarg/2,
	    matrix_min/2,
	    matrix_minarg/2,
	    matrix_sum/2,
	    matrix_sum_out/3,
	    matrix_sum_out_several/3,
	    matrix_sum_logs_out/3,
	    matrix_sum_logs_out_several/3,
	    matrix_add_to_all/2,
	    matrix_agg_lines/3,
	    matrix_agg_cols/3,
	    matrix_to_logs/1,
	    matrix_to_exps/1,
	    matrix_to_exps2/1,
	    matrix_to_logs/2,
	    matrix_to_exps/2,
	    matrix_op/4,
	    matrix_op_to_all/4,
	    matrix_op_to_lines/4,
	    matrix_op_to_cols/4,
	    matrix_shuffle/3,
	    matrix_transpose/2,
	    matrix_set_all_that_disagree/5,
	    matrix_expand/3,
	    matrix_select/4,
	    matrix_column/3
	    ]).

:- load_foreign_files([matrix], [], init_matrix).

matrix_new(ints,Dims,Matrix) :-
	length(Dims,NDims),
	new_ints_matrix_set(NDims, Dims, 0, Matrix).
matrix_new(floats,Dims,Matrix) :-
	length(Dims,NDims),
	new_floats_matrix_set(NDims, Dims, 0.0, Matrix).


matrix_new(ints,Dims,Data,Matrix) :-
	length(Dims,NDims),
	new_ints_matrix(NDims, Dims, Data, Matrix).
matrix_new(floats,Dims,Data,Matrix) :-
	length(Dims,NDims),
	new_floats_matrix(NDims, Dims, Data, Matrix).


matrix_new_set(ints,Dims,Elem,Matrix) :-
	length(Dims,NDims),
	new_ints_matrix_set(NDims, Dims, Elem, Matrix).
matrix_new_set(floats,Dims,Elem,Matrix) :-
	length(Dims,NDims),
	new_floats_matrix_set(NDims, Dims, Elem, Matrix).


matrix_type(Matrix,Type) :-
	matrix_type_as_number(Matrix, 0), !,
	Type = ints.
matrix_type(_,floats).

	
matrix_agg_lines(M1,+,NM) :-
	do_matrix_agg_lines(M1,0,NM).
/* other operations: *, logprod */

matrix_agg_cols(M1,+,NM) :-
	do_matrix_agg_cols(M1,0,NM).
/* other operations: *, logprod */

matrix_op(M1,M2,+,NM) :-
	do_matrix_op(M1,M2,0,NM).
matrix_op(M1,M2,-,NM) :-
	do_matrix_op(M1,M2,1,NM).
matrix_op(M1,M2,*,NM) :-
	do_matrix_op(M1,M2,2,NM).
matrix_op(M1,M2,/,NM) :-
	do_matrix_op(M1,M2,3,NM).
matrix_op(M1,M2,zdiv,NM) :-
	do_matrix_op(M1,M2,5,NM).

matrix_op_to_all(M1,+,Num,NM) :-
	do_matrix_op_to_all(M1,0,Num,NM).
matrix_op_to_all(M1,*,Num,NM) :-
	do_matrix_op_to_all(M1,2,Num,NM).
matrix_op_to_all(M1,/,Num,NM) :-
	% can only use floats.
	FNum is float(Num),
	do_matrix_op_to_all(M1,3,FNum,NM).
/* other operations: *, logprod */

matrix_op_to_lines(M1,M2,/,NM) :-
	do_matrix_op_to_lines(M1,M2,3,NM).
/* other operations: *, logprod */

matrix_op_to_cols(M1,M2,+,NM) :-
	do_matrix_op_to_cols(M1,M2,0,NM).
/* other operations: *, logprod */


matrix_transpose(M1,M2) :-
	matrix_shuffle(M1,[1,0],M2).