From c548499e68e473452592c9b0bf860f76bd8b94b8 Mon Sep 17 00:00:00 2001
From: Sebastiano Tronto <sebastiano@tronto.net>
Date: Fri, 30 Aug 2024 07:52:53 +0200
Subject: Added tool for checking new tables (and they are wrong)

---
 tools/002_gendata_h48h0k2/gendata_h48h0k2.c | 62 +++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 tools/002_gendata_h48h0k2/gendata_h48h0k2.c

(limited to 'tools/002_gendata_h48h0k2')

diff --git a/tools/002_gendata_h48h0k2/gendata_h48h0k2.c b/tools/002_gendata_h48h0k2/gendata_h48h0k2.c
new file mode 100644
index 0000000..2754f80
--- /dev/null
+++ b/tools/002_gendata_h48h0k2/gendata_h48h0k2.c
@@ -0,0 +1,62 @@
+#include "../tool.h"
+
+#define MAXDEPTH 20
+#define HVALUE 0
+#define OPTIONS "0;2;20"
+#define LONGOPTIONS "h = 0, k = 2, max depth = 20"
+
+#define COCSEPSIZE 1119792
+#define ETABLESIZE(h) (((3393 * 495 * 70) >> 2) << (size_t)(h))
+
+uint32_t expected[21] = {
+	/* Base value is 8 */
+	[0] = 5473562,
+	[1] = 34776317,
+	[2] = 68566704,
+	[3] = 8750867,
+};
+
+char *buf;
+
+void run(void) {
+	uint32_t *h48info, x;
+	int i;
+	int64_t s;
+
+	s = nissy_gendata("h48", OPTIONS, buf);
+
+	if (s == -1) {
+		printf("Error generating table\n");
+	} else {
+		printf("Succesfully generated %" PRId64 " bytes. Table:\n", s);
+		h48info = (uint32_t *)buf + 1 + (ETABLESIZE(HVALUE) + COCSEPSIZE) / 4;
+		for (i = 0; i < 4; i++) {
+			x = h48info[i+1];
+			printf("%d:\t%" PRIu32, i, x);
+			if (x != expected[i])
+				printf(" <--- Error! Expected: %" PRIu32,
+				    expected[i]);
+			printf("\n");
+		}
+	}
+}
+
+int main(void) {
+	int64_t size;
+
+	nissy_setlogger(log_stderr);
+
+	size = nissy_datasize("h48", OPTIONS);
+	if (size == -1) {
+		printf("gendata_h48 benchmark: error in datasize\n");
+		return 1;
+	}
+
+	buf = malloc(size);
+
+	timerun(run, "benchmark gendata_h48 " LONGOPTIONS);
+
+	free(buf);
+
+	return 0;
+}
-- 
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