Aktualizovat du3/program.c

du3/program.c

@@ -6,6 +6,7 @@
 #include <math.h>
 
 #define SIZE 128
+#define TEMPBUFFERSIZE 32
 
 //kontrola, ze ci vycitane informacie su aritmeticky spravne
 //VRACIA: int: -1 (CHYBA), 0 (False), 1 (True)
@@ -61,11 +62,12 @@ int main()
         {
             bool isLineInvalid = false;
             //docasne 'char' premeny
-            char num1Temp[10], num2Temp[10], resultTemp[10];
+            char num1Temp[TEMPBUFFERSIZE], num2Temp[TEMPBUFFERSIZE], resultTemp[TEMPBUFFERSIZE];
             num1Temp[0] = '\0';
             num2Temp[0] = '\0';
             resultTemp[0] = '\0';
             bool foundEqualSign = false;
+            bool isNotMinus;
 
             char op1 = 'N';  //N = 'None/NIC'
 
@@ -96,6 +98,21 @@ int main()
                 }
                 else if (strBuffer[i] == '=')
                 {
+                    //kontrola - zistenie, ze ci znak '-' symbolizuje zapornu hodnotu (-456) alebo arit. operaciu minus
+                    //zistujeme to na zaklade toho, kde sme v riadku, ak na zaciatku
+                    if (op1 == 'N' && strlen(num1Temp) == 0)
+                    {
+                        isNotMinus = true;
+                    }
+                    //
+                    else if (op1 != 'N' && !foundEqualSign && strlen(num2Temp) == 0)
+                    {
+                        isNotMinus;
+                    }
+                    else if (foundEqualSign && strlen(resultTemp) == 0)
+                    {
+                        isNotMinus;
+                    }
                     foundEqualSign = true;
                     continue;
                 }