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postfix calculator

closed account (o1w5fSEw)
hey guys i'm trying to make a postfix calculator..when you read each char, it check whether it is a digit - if it is, convert it to an int...but i can't get my program to separate the operands and operators? 
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# include <iostream>
# include <stack>
# include <string>
using namespace std;
int main()
{
	stack <int>myStack;
	string postFix;
	char ch,op;
	int hold;

	cin>>postFix;
	for (int count=0; count <= postFix.length(); count++)
	{
		ch = postFix[count];
		if((ch<=9) && (ch>=0))
		{
			hold=ch-'0';
			myStack.push(hold);
		}
		else
		{
			cout<<ch;
			myStack.push(ch);
		}
			
		
	}
	return 0;
}
Last edited on
matsom (288)
line 16: you're comparing two different types a char and literal integer, consult the ANSI table for a correct way to do your comparison
closed account (o1w5fSEw)
I got it! Thanks a lot for your advice i really appreciate!
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