Task 8 is done

2025.04.18/08Ex/main.c

@@ -0,0 +1,34 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <math.h>
+
+#include "io_status.h"
+#include "solve.h"
+
+/* ./a.out x eps */
+int main(int argc, char *argv[])
+{
+	double x, eps, t, r1 = 0, r2 = 0;
+	int task = 8;
+
+	if (
+			!((argc == 3) && 
+			((sscanf(argv[1], "%le", &x) == 1) && x > 0) &&
+			((sscanf(argv[2], "%le", &eps) == 1) && eps > 0))
+	) {
+		fprintf(stderr, "Usage: %s x eps\n", argv[0]);
+		return 1;
+	}
+
+	t = clock();
+	r1 = dln(x, eps);
+	t = (clock() - t) / CLOCKS_PER_SEC;
+
+	r2 = fabs(r1 - log(x));
+
+	printf("%s : Task = %d Result = %e Residual = %e Elapsed = %.2f\n", argv[0], task, r1, r2, t);
+
+	return 0;
+}
+