Entrainements + fin TP structures

DEV1.1/TP20/TP20_reponses.txt

@@ -0,0 +1,91 @@
+----- TP20 : Structures -----
+
+1. 
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+
+int main (void) {
+	time_t timestamp = time(NULL);
+	struct tm* date = localtime(&timestamp);
+
+	printf("%04d/%02d/%02d", date->tm_year+1900, date->tm_mon+1, date->tm_mday);
+}
+
+
+2.
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+
+struct enregistrement {
+	char a;
+	char b;
+	char c;
+};
+
+int main (void) {
+	struct enregistrement test = {'Z', 'i', 'o'};
+	printf("Taille du 1er élément : %zu \nTaille du 2e élément : %zu \nTaille du 3e élément : %zu \n", sizeof(test.a), sizeof(test.b), sizeof(test.c));
+}
+
+3.
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <pwd.h>
+
+
+int main (void) {
+	struct passwd* id = getpwnam("simoes");
+	printf("UID : %d\n", id->pw_uid);
+}
+
+4.
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+
+struct imaginaire {
+	int x;
+	int y;
+};
+
+struct imaginaire conjugue(struct imaginaire z) {
+	struct imaginaire z_conjugue;
+	z_conjugue.x = z.x;
+	z_conjugue.y = z.y * -1;
+	return z_conjugue;
+}
+
+double module(struct imaginaire z) {
+	return sqrt((z.x*z.x) + (z.y*z.y));
+}
+
+void afficher_imaginaire(struct imaginaire z) {
+	if (z.y < 0) {
+		printf("%d - %di", z.x, z.y*-1);
+	} 
+	else {
+		printf("%d + %di", z.x, z.y);
+	}
+	putchar('\n');
+}
+
+void inverse(struct imaginaire z) {
+	printf("1 / ");
+	afficher_imaginaire(z);
+}
+
+int main (void) {
+	struct imaginaire test = {4, 8};
+	afficher_imaginaire(test);
+	afficher_imaginaire(conjugue(test));
+	printf("%f\n",module(test));
+	inverse(test);
+}
+

DEV1.1/TP20/tests.c

@@ -0,0 +1,42 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+
+struct imaginaire {
+	int x;
+	int y;
+};
+
+struct imaginaire conjugue(struct imaginaire z) {
+	struct imaginaire z_conjugue;
+	z_conjugue.x = z.x;
+	z_conjugue.y = z.y * -1;
+	return z_conjugue;
+}
+
+double module(struct imaginaire z) {
+	return sqrt((z.x*z.x) + (z.y*z.y));
+}
+
+void afficher_imaginaire(struct imaginaire z) {
+	if (z.y < 0) {
+		printf("%d - %di", z.x, z.y*-1);
+	} 
+	else {
+		printf("%d + %di", z.x, z.y);
+	}
+	putchar('\n');
+}
+
+void inverse(struct imaginaire z) {
+	printf("1 / ");
+	afficher_imaginaire(z);
+}
+
+int main (void) {
+	struct imaginaire test = {4, 8};
+	afficher_imaginaire(test);
+	afficher_imaginaire(conjugue(test));
+	printf("%f\n",module(test));
+	inverse(test);
+}