init projet

tp1/Sources-TD1/.ccls

@@ -0,0 +1,12 @@
+gcc-13
+%c -std=std2x
+%c -Wall
+%c -Wextra
+%c -pedantic
+%c -Wshadow
+%c -Wpointer-arith
+%c -Wcast-qual
+%c -Wstrict-prototypes
+%c -Wmissing-prototypes
+%c -Wno-gnu-zero-variadic-macro-arguments
+%c -I/opt/homebrew/include/

tp1/Sources-TD1/.dir-locals.el

@@ -0,0 +1,2 @@
+((c-mode . ((+format-with . uncrustify))))
+;; ((c-mode . ((+format-with . clang-format))))

tp1/Sources-TD1/Exercice3.c

@@ -0,0 +1,55 @@
+#include <stdio.h>
+
+void echange_1(int x, int y) {
+  int tmp;
+
+  tmp = x;
+  x   = y;
+  y   = tmp;
+}
+
+void echange_2(int *x, int *y) {
+  int *tmp;
+
+  tmp = x;
+  x   = y;
+  y   = tmp;
+}
+
+void echange_3(int *x, int *y) {
+  int tmp;
+
+  tmp = *x;
+  *x  = *y;
+  *y  = tmp;
+}
+
+void echange_4(int *x, int *y) {
+  int *tmp;
+
+  *tmp = *x;
+  *x   = *y;
+  *y   = *tmp;
+}
+
+// Expliquer de façon détaillée et justifiée ce qu'on obtient à l'exécution.
+
+int main(void) {
+  int a = 1, b = 2;
+  echange_1(a, b);
+  printf("a = %d, b = %d\n", a, b);
+
+  a = 1, b = 2;
+  echange_2(&a, &b);
+  printf("a = %d, b = %d\n", a, b);
+
+  a = 1, b = 2;
+  echange_3(&a, &b);
+  printf("a = %d, b = %d\n", a, b);
+
+  a = 1, b = 2;
+  echange_4(&a, &b);
+  printf("a = %d, b = %d\n", a, b);
+
+  return 0;
+}

tp1/Sources-TD1/Exercice4.c

@@ -0,0 +1,15 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(void) {
+  int a = 1, b = 2, c = 3, d = 4;
+  int *p1 = &a, *p2 = &b, *p3 = &c, *p4 = &d, *p5;
+
+  p5  = p3;
+  *p3 = *p2;
+  *p2 = *p5;
+  *p4 = *p1;
+  *p1 = *p4;
+  printf("a, b ,c and d are equal to: %d, %d, %d and %d\n", a, b, c, d);
+  exit(EXIT_SUCCESS);
+}

tp1/Sources-TD1/Exercice5.c

@@ -0,0 +1,33 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int *x1[1], *x2[1], y[1], z[1];
+
+void f(int **p) {
+  **p = 2;
+  *p  = y;
+  **p = 3;
+  p   = x2;
+  *p  = z;
+  **p = 4;
+  // Fin de f
+}
+
+int main(void) {
+  int **p, ***q, **r, *s, t;
+
+  p   = x1;
+  *p  = &t;
+  **p = 1;
+  q   = &p;
+  r   = p;
+  s   = *p;
+
+  printf("%d %d %d %d %d %d \n", ***q, **p, **r, *s, *z, t);
+
+  f(p);
+
+  printf("%d %d %d %d %d %d \n", ***q, **p, **r, *s, *z, t);
+
+  exit(EXIT_SUCCESS);
+}

tp1/Sources-TD1/Exercice6.c

@@ -0,0 +1,20 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(void) {
+  int a = 1, b = 2, c = 3, d = 4;
+  int *p1 = &a, **p2 = &p1, *p3 = &c, *p4 = &b, **p5 = &p3, *p6 = &d;
+
+  *p3  = **p2 + 6;
+  *p2  = p3;
+  *p1  = *p4 * 5;
+  p5   = &p6;
+  **p5 = **p5 + **p2;
+  *p4  = *p3 + 14;
+  *p5  = p1;
+  **p2 = 1 + **p2;
+  **p5 = **p5 * **p2;
+
+  printf("a, b ,c and d are equal to: %d, %d, %d and %d\n", a, b, c, d);
+  return 1;
+}

tp1/Sources-TD1/Exercice7.c

@@ -0,0 +1,39 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int x1, y1, y2, z1, z2;
+
+int *px1 = &x1,
+    *py1 = &y1, *py2 = &y2,
+    *pz1 = &z1, *pz2 = &z2;
+
+void aux(int **p, int ***q)
+{
+  **p  = 2;
+  ***q = 99;
+  *p   = pz1;
+  **p  = 12;
+  p    = &py2;
+  *q   = &px1;
+  **p  = 4;
+  ***q = 42;
+}
+
+int main(void)
+{
+  int **p, **q, ***r, s, *t;
+  p    = &py1;
+  q    = &px1;
+  r    = &q;
+  *p   = &s;
+  **q  = 1;
+  **p  = 34;
+  ***r = 76;
+  t    = **r;
+  r    = &p;
+
+  aux(p, &q);
+  printf("%d %d %d %d %d \n",
+         **q, **p, ***r, s, *t);
+  return 1;
+}

tp1/Sources-TD1/Exercice8.1.c

@@ -0,0 +1,39 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+void foo(int **);
+
+int main(void);
+
+int somme(void);
+
+int resultat = 0;
+
+void foo(int **p) {
+  resultat++;
+  *p = &resultat;
+  main();
+  return;
+}
+
+int m;
+int *p[5] = {&m, &m, &m, &m, &m};
+
+int somme(void) {
+  int i;
+  int s = 0;
+
+  for (i = 0; i < 5; i++)
+    s += *p[i];
+  return s;
+}
+
+int main(void) {
+  static int n;
+
+  if (n == 5)
+    printf("%d\n", somme());
+  else
+    foo(p + n++);
+  exit(EXIT_SUCCESS);
+}

tp1/Sources-TD1/Exercice8.2.c

@@ -0,0 +1,39 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+void foo(int *p);
+
+int somme(void);
+
+int main(void);
+
+int resultat = 0;
+
+void foo(int *p) {
+  resultat++;
+  p = &resultat;
+  main();
+  return;
+}
+
+int m;
+int *p[5] = {&m, &m, &m, &m, &m};
+
+int somme(void) {
+  int i;
+  int s = 0;
+
+  for (i = 0; i < 5; i++)
+    s += *p[i];
+  return s;
+}
+
+int main(void) {
+  static int n;
+
+  if (n == 5)
+    printf("%d\n", somme());
+  else
+    foo(p[n++]);
+  exit(EXIT_SUCCESS);
+}

tp1/Sources-TD1/Exercice8.3.c

@@ -0,0 +1,39 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+void foo(int **p);
+
+int somme(void);
+
+int main(void);
+
+int resultat = 0;
+
+void foo(int **p) {
+  int resultbis = ++resultat;
+  *p = &resultbis;
+  main();
+  return;
+}
+
+int m;
+int *p[5] = {&m, &m, &m, &m, &m};
+
+int somme(void) {
+  int i;
+  int s = 0;
+
+  for (i = 0; i < 5; i++)
+    s += *p[i];
+  return s;
+}
+
+int main(void) {
+  static int n;
+
+  if (n == 5)
+    printf("%d\n", somme());
+  else
+    foo(p + n++);
+  exit(EXIT_SUCCESS);
+}

tp1/Sources-TD1/Exercice8.4.c

@@ -0,0 +1,45 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+void foo(int **p);
+
+int somme(void);
+
+int main(void);
+
+int resultat = 0;
+
+void foo(int **p) {
+  int resultbis = ++resultat;
+  *p = &resultbis;
+  main();
+  return;
+}
+
+int m;
+int *p[5] = {&m, &m, &m, &m, &m};
+
+int somme(void) {
+  int i;
+  int s = 0;
+
+  for (i = 0; i < 5; i++) {
+    printf("%d\n", *p[i]);
+    s += *p[i];
+  }
+  return s;
+}
+
+int main(void) {
+  static int n;
+  int m = n;
+
+  if (n != 5) {
+    foo(p + (m = n++));
+    if (m == 0)
+      printf("%d\n", somme());
+    else
+      return 0;
+  }
+  exit(EXIT_SUCCESS);
+}