GRASS GIS 8 Programmer's Manual 8.4.1(2025)-45ca3179ab
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xle.c
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1#include <grass/gis.h>
2#include <grass/raster.h>
3#include <grass/calc.h>
4
5/****************************************************************
6le(a,b) = a <= b
7****************************************************************/
8
9int f_le(int argc, const int *argt, void **args)
10{
11 CELL *res = args[0];
12 int i;
13
14 if (argc < 2)
15 return E_ARG_LO;
16 if (argc > 2)
17 return E_ARG_HI;
18
19 switch (argt[1]) {
20 case CELL_TYPE: {
21 CELL *arg1 = args[1];
22 CELL *arg2 = args[2];
23
24 for (i = 0; i < columns; i++) {
25 if (IS_NULL_C(&arg1[i]) || IS_NULL_C(&arg2[i]))
26 SET_NULL_C(&res[i]);
27 else
28 res[i] = arg1[i] <= arg2[i];
29 }
30 return 0;
31 }
32 case FCELL_TYPE: {
33 FCELL *arg1 = args[1];
34 FCELL *arg2 = args[2];
35
36 for (i = 0; i < columns; i++) {
37 if (IS_NULL_F(&arg1[i]) || IS_NULL_F(&arg2[i]))
38 SET_NULL_C(&res[i]);
39 else
40 res[i] = arg1[i] <= arg2[i];
41 }
42 return 0;
43 }
44 case DCELL_TYPE: {
45 DCELL *arg1 = args[1];
46 DCELL *arg2 = args[2];
47
48 for (i = 0; i < columns; i++) {
49 if (IS_NULL_D(&arg1[i]) || IS_NULL_D(&arg2[i]))
50 SET_NULL_C(&res[i]);
51 else
52 res[i] = arg1[i] <= arg2[i];
53 }
54 return 0;
55 }
56 default:
57 return E_INV_TYPE;
58 }
59}
int columns
Definition calc.c:11
int f_le(int argc, const int *argt, void **args)
Definition xle.c:9