Corrected lab04

Author: RiccardoCuccu

lab04/average.c

@@ -1,9 +1,5 @@
 #include <stdio.h>
 #include <stdlib.h>
-//#include <unistd.h>
-//#include <time.h>
-//#include <sys/types.h>
-//#include <sys/wait.h>
 #include <errno.h>
 
 int main (int argc, char* argv[]) {
@@ -15,11 +11,11 @@ int main (int argc, char* argv[]) {
 
 	FILE *f;
 
-	i=0;
-	average=0;
+	i = 0;
+	average = 0;
 
 	if (argc == 2) {
-		f=fopen(argv[1], "r");
+		f = fopen(argv[1], "r");
 
 		if (f == NULL) {
 			perror("ERROR during FOPEN execution: ");
@@ -32,7 +28,7 @@ int main (int argc, char* argv[]) {
 		}
 
 		printf("The average is %d\n", average/i);
-		exit (0);
+		exit(0);
 	} else {
 		printf("USAGE: ./average <path>\n");
 	}

lab04/ex03.c

@@ -22,48 +22,48 @@ int main() {
 		perror("ERROR during FORK #1 execution: ");
 		exit(errno);
 	}
-	if (pid==0) {
-		f=fopen(RFILE,"w");
+	if (pid == 0) {
+		f = fopen(RFILE,"w");
 		/* Generate 100 random numbers */
-		for (i=0; i<N; i++){
-			fprintf(f, "%d ", rand()%100);
+		for (i = 0; i < N; i++){
+			fprintf(f, "%d ", rand() % 100);
 		}
 		fclose(f);
 		exit(0);
 	}
 
 	wait(NULL);
-	pid=fork();
+	pid = fork();
 	if (pid < 0) {
 		perror("ERROR during FORK #2 execution: ");
 		exit(errno);
 	}
-	if (pid==0) {
+	if (pid == 0) {
 		/* Number of byte of the file */
 		execl("/usr/bin/wc", "wc", "-m", RFILE, NULL);
 	}
 
-	pid=fork();
+	pid = fork();
 	if (pid < 0) {
 		perror("ERROR during FORK #3 execution: ");
 		exit(errno);
 	}
-	if (pid==0) {
+	if (pid == 0) {
 		/* Number of words of the file */
 		execl("/usr/bin/wc", "wc", "-w", RFILE, NULL);
 	}
 
-	pid=fork();
+	pid = fork();
 	if (pid < 0) {
 		perror("ERROR during FORK #4 execution: ");
 		exit(errno);
 	}
-	if (pid==0) {
+	if (pid == 0) {
 		/* Average of all generated number with a custom program */
 		execl("./average", "./average", RFILE, NULL);
 	}
 
-	while(wait(NULL)>0){};
+	while(wait(NULL) > 0){};
 
 	return 0;
 }