fix some warnings

njvm.c

@@ -23,31 +23,32 @@ unsigned int programmSpeicher[1000];
 unsigned int stack[1000];
 unsigned int current = 0;
 
-void stackPush(unsigned int value){
-    if(current > 100) {
+void stackPush(unsigned int value) {
+    if (current > 100) {
         fprintf(stderr, "stack overflow\n");
         exit(EXIT_FAILURE);
     }
     stack[current] = value;
     current++;
 }
-unsigned int stackPop(){
-    if(current < 1) {
+
+unsigned int stackPop(void) {
+    if (current < 1) {
         fprintf(stderr, "stack underflow\n");
         exit(EXIT_FAILURE);
     }
     return --current;
 }
 
-void version() {
+void version(void) {
     printf("Ninja Virtual Machine version %i (compiled %s, %s)\n", 0, __DATE__, __TIME__);
 }
 
-void help() {
+void help(void) {
     printf("usage: ./njvm [option] [option] ...\n\t--version\tshow version and exit\n\t--help\t\tshow this help and exit\n");
 }
 
-void useption(int argc, char *argv[]){
+void useption(int argc, char *argv[]) {
     if (argc > 1) {
         if (strcmp(argv[1], "--version") == 0) {
             version();
@@ -58,7 +59,8 @@ void useption(int argc, char *argv[]){
         }
     }
 }
-void execute(){
+
+void execute(void) {
     int i = 0;
     while (programmSpeicher[i] != 0) {
 
@@ -91,7 +93,7 @@ void execute(){
 }
 
 int main(int argc, char *argv[]) {
-    if (argc > 1)   useption(argc,argv);
+    if (argc > 1) useption(argc, argv);
     else {
 
 //    Started
@@ -101,4 +103,4 @@ int main(int argc, char *argv[]) {
         printf("Ninja Virtual Machine stopped\n");
         return 0;
     }
-}
+}