GopherProxy

	add LEN() macro and use it - chess-puzzles - chess puzzle book generator
	git clone git://git.codemadness.org/chess-puzzles
	Log
	Files
	Refs
	README
	LICENSE
	---
	commit f1daa80c1d6cf199c57d820e117255f38bd3d55e
	parent 6af435b4416d90cb27e447e2f0bf505721374e12
	Author: Hiltjo Posthuma <[email protected]>
	Date: Mon, 25 Dec 2023 18:54:16 +0100

	add LEN() macro and use it

	Diffstat:
	M fen.c \| 17 +++++++++--------

	1 file changed, 9 insertions(+), 8 deletions(-)
	---
	diff --git a/fen.c b/fen.c
	@@ -9,6 +9,8 @@
	#include <unistd.h>
	#endif

	+#define LEN(s) (sizeof(s)/sizeof(*s))
	+
	/* macro for truecolor RGB output to tty */
	#define SETFGCOLOR(r,g,b) printf("\x1b[38;2;%d;%d;%dm", r, g, b)
	#define SETBGCOLOR(r,g,b) printf("\x1b[48;2;%d;%d;%dm", r, g, b)
	@@ -216,7 +218,7 @@ output_svg(void)
	{
	const char *s;
	char pieces[] = "pPKQRBNkqrbn"; /* pieces, check if they are used for …
	- unsigned char pieceused[sizeof("pPKQRBNkqrbn")];
	+ unsigned char pieceused[LEN("pPKQRBNkqrbn")] = { 0 };
	const int *color;
	int i, ix, iy, x, y, piece;

	@@ -225,8 +227,7 @@ output_svg(void)
	"<svg width=\"360\" height=\"360\" viewBox=\"0 0 360 360\" xml…
	"<rect fill=\"#fff\" stroke=\"#000\" x=\"0\" y=\"0\" width=\"3…

	- memset(pieceused, 0, sizeof(pieceused));
	- for (i = 0; i < sizeof(pieces) / sizeof(pieces[0]); i++) {
	+ for (i = 0; i < LEN(pieces); i++) {
	for (y = 0; y < 8 && !pieceused[i]; y++) {
	for (x = 0; x < 8; x++) {
	if (getpiece(x, y) == pieces[i]) {
	@@ -238,7 +239,7 @@ output_svg(void)
	}

	fputs("<defs>\n", stdout);
	- for (i = 0; i < sizeof(pieces) / sizeof(pieces[0]); i++) {
	+ for (i = 0; i < LEN(pieces); i++) {
	if (!pieceused[i])
	continue;
	s = NULL;
	@@ -533,7 +534,7 @@ ischecked(int side)
	return 0; /* should not happen */

	/* check files and ranks (for queen and rook) */
	- for (j = 0; j < 8; j += 2) {
	+ for (j = 0; j < LEN(line); j += 2) {
	for (i = 1; i < 8; i ++) {
	x = kingx + (i * line[j]);
	y = kingy + (i * line[j + 1]);
	@@ -551,8 +552,8 @@ ischecked(int side)
	}

	/* check diagonals (queen and bishop) */
	- for (j = 0; j < 8; j += 2) {
	- for (i = 1; i < 8; i ++) {
	+ for (j = 0; j < LEN(diag); j += 2) {
	+ for (i = 1; i < 8; i++) {
	x = kingx + (i * diag[j]);
	y = kingy + (i * diag[j + 1]);
	if (!(piece = getpiece(x, y)))
	@@ -570,7 +571,7 @@ ischecked(int side)

	/* check knights */
	piece = side == 'w' ? 'n' : 'N';
	- for (j = 0; j < 16; j += 2) {
	+ for (j = 0; j < LEN(knight); j += 2) {
	x = kingx + knight[j];
	y = kingy + knight[j + 1];
	// highlightmove(x, y); /* DEBUG */