GRASS GIS 8 Programmer's Manual
8.3.2(2024)-exported
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xor.c
Go to the documentation of this file.
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#include <grass/gis.h>
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#include <grass/raster.h>
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#include <grass/calc.h>
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/****************************************************************
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or(a,b,c,...) = a || b || c || ...
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****************************************************************/
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int
f_or
(
int
argc,
const
int
*argt,
void
**args)
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{
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CELL *res = args[0];
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int
i, j;
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if
(argc < 1)
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return
E_ARG_LO;
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if
(argt[0] != CELL_TYPE)
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return
E_RES_TYPE;
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for
(i = 1; i <= argc; i++)
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if
(argt[i] != argt[0])
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return
E_ARG_TYPE;
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for
(i = 0; i <
columns
; i++) {
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res[i] = 0;
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for
(j = 1; j <= argc; j++) {
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CELL *arg = args[j];
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if
(IS_NULL_C(&arg[i])) {
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SET_NULL_C(&res[i]);
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break
;
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}
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if
(arg[i])
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res[i] = 1;
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}
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}
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return
0;
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}
columns
int columns
Definition
calc.c:11
f_or
int f_or(int argc, const int *argt, void **args)
Definition
xor.c:9
calc
xor.c
Generated on Fri May 24 2024 09:06:59 for GRASS GIS 8 Programmer's Manual by
1.9.8