Anyone to help me with the code below.

Question

Its telling me that i am comparing a pointer and an integer which is an error.
/*calculator*/

#include <stdio.h>

int main(){

char add=1;
char mult=2;
char div=3;
char sub=4;

char sign[1];

printf("Enter the sign for your calculation:\t");
scanf("%s",sign);

if(sign==add){

int a,b,sum;

printf("\nEnter the first number");
scanf("%d",&a);

printf("\nEnter the second number:");
scanf("%d",&b);

sum=a+b;

printf("\nThe sum of the two values is:%d",sum);
}

else if(sign==sub){

int a,b,difference;

printf("\nEnter the first number:");
scanf("%d",&a);

printf("\nEnter the second number:");
scanf("%d",&b);

difference=a-b;

printf("\nThe answer is:%d",difference);
}

else if(sign==mult){

int a,b,product;

printf("\nEnter the first number:");
scanf("%d",&a);

printf("\nEnter the second number:");
scanf("%d",&b);

product=a*b;

printf("\nThe product is:%d",product);
}

else if(sign==div){

int a,b;
float c;

printf("\nEnter the first number:");
scanf("%d",&a);

printf("\nEnter the second number:");
sca

Answer 1

These changes needed...
char add='1';
//or take it as + , If it is number like just 1, then it is stored as converted to ascii value 48. No case matches

char mult='2;
char div='3';
char sub='4';

char sign; //just use char

printf("Enter the sign for your calculation:\t");
scanf("%c",&sign);