added xor

Home/PL/HW/Stack Calculator/main.c

@@ -0,0 +1,51 @@
+#include "head.h"
+
+int main(int argc, char *argv[]){
+    Plate *plates = NULL;
+    char c;
+	int i,j,k, ans = 0;
+    for (k=1; k < argc; k++){
+        if (isnm(argv[k])){
+            plates = push(plates, atoi(argv[k]));
+        }
+        else if (strlen(argv[k]) == 1 || !strcmp(argv[k], "*m")){
+            if (len(plates)<2){
+                printf("Not enough numbers");
+                exit(2);
+            }
+            if (!strcmp(argv[k], "*m")) c = '*';
+            else c = *argv[k];
+            i = pop(&plates);
+			j = pop(&plates);
+			switch(c){
+                case '+':
+				    plates = push(plates, j + i);
+				    break;
+			    case '-':
+				    plates = push(plates, j - i);
+				    break;
+			    case '*':
+				    plates = push(plates, j * i);
+				    break;
+			    case '/':
+				    plates = push(plates, j / i);
+				    break;
+                default:
+                    printf("You wrote something wrong");
+                    exit(3);
+            }
+        }
+        else{ 
+            printf("You wrote something wrong");
+            exit(7);
+        }
+    }	
+    if (len(plates)!=1){
+        printf("Not enough operations");
+        exit(4);
+    }
+	ans = pop(&plates);
+	printf("Result of line is %d\n", ans);
+
+    return 0;
+}