eg

AcquiringLand/Fundamentals/insert_string.c

@@ -5,21 +5,20 @@ char **insert_string(char **strings_array, int *array_size, char *insert_str, in
 
     
     char **rslt = malloc((*array_size + 1 )* sizeof(char *));
+    if(rslt == NULL) return NULL;
 
     int index_clc = 0;
+    int index_clc2 = 0;
     //char *temp;
 
-    while (index_clc < *array_size){
+    while (index_clc < *array_size + 1){
 
         
-        if (index_clc == index){
-            *(rslt + index_clc) = insert_str;
-            index_clc ++;
-        }
+        if (index_clc == index) *(rslt + index_clc) = insert_str;
         else{
-            *(rslt + index_clc) = *(strings_array + index_clc);
-        }
-
+            *(rslt + index_clc) = *(strings_array + index_clc2);
+            index_clc2 ++;
+	}
 
         /*
         if (index_clc >= index){
@@ -33,20 +32,23 @@ char **insert_string(char **strings_array, int *array_size, char *insert_str, in
     //*(strings_array + index) = insert_str;
     
     //free(temp);
+    *array_size = *array_size + 1; 
     return rslt;
 }
-
+/*
 int main(){
     char *tests[] = {"This", "is", "a", "long", "example"};
     char *ins = "very";
     int ted = 5;
     
     char **rslt = insert_string(tests, &ted, ins ,3);
-    int index = 0;
-    while (index < 6){
-        printf("%s", *(rslt + index));
-        index ++;
+    
+    if(rslt != NULL){
+	
+	for (int i = 0; i < ted; i ++) printf("%s",rslt[i]);
     }
+    printf("\n");
+    
     free (rslt);
 }
-
+*/