ordering system

whats wrong with my code? everytime that i compile it, it has this error "85 | if((choice=='e')||(choice=='E')) |
^~"

Well you need to post more than the fragment of one line of code.

this is my code in line 85

Code:

---

if((choice=='e')||(choice=='E'))
        {
                system("cls");
                printf("--------------------\n");
                printf("All About the Project");
                printf("\n--------------------\n");
                printf("This project is called 'Ordering System'");
                printf("before i finally build this, i have watched a bunch of tutorials on YouTube,");
                printf("i have posted questions in online forum.");
                printf("and i asked for help to my classmates, and i am very lucky that they are willing to help.");
                printf("the features of this program are:");
                printf("The customers are able to choose what they want to order");
                printf("it has also the billing system but its not actually good");
                printf("and the last feature is the receipt, which i actually have a problem with that");
                ext();
        }

---

What is the actual error message?

How did you declare choice?

What is ext() ?

This isn't a game of 20 questions to try and get you to show a decent amount of information that would enable us to help you.
Short, Self Contained, Correct Example

the actual error message is at the top of this thread. i declare choice as a char data type and the ext is a function

This is an error message.

Code:

---

foo.c:82:11: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
  82 |      if (flag = 0)
      |          ^~~~

---

You've posted nothing like that so far.

Getting really bored of trying to get blood out of a stone here.