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2024_Praxis_der_Programmierung/ue5/point_2.c

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+/* point_1.c
+ * 
+ * Datentyp eines zweidimensionalen Punktes
+ * verschiedene Methoden der Komponentenselektion
+ */
+
+#include <stdio.h>
+
+struct point {
+  float x;
+  float y;
+};
+
+void move_point(struct point * ptr, float delta_a, float delta_b){
+    if (ptr != NULL){
+        ptr->x += delta_a;
+        ptr->y += delta_b;
+    }
+}
+
+int main() {
+    struct point p1 = {3.0f,4.0f};
+    struct point * ptr = &p1;
+    struct point p2 = {0.0f,0.0f};
+
+    printf("\nx-Koordinate von p1: %f", ptr->x);
+    printf("\ny-Koordinate von p1: %f", ptr->y);
+
+    p2 = p1;
+
+    printf("\nx-Koordinate von p2: %f", p2.x);
+    printf("\ny-Koordinate von p2: %f", p2.y);
+
+    printf("\nAdresse von p1: %p", (void*)&p1);
+    printf("\nAdresse von p2: %p", (void*)&p2);
+
+
+    printf("\n\n");
+
+    move_point(ptr, 4.0f , 5.0f);
+
+    printf("\nx-Koordinate von p1: %f", ptr->x);
+    printf("\ny-Koordinate von p1: %f", ptr->y);
+
+    printf("\n\n");
+
+    return 0;
+}