Hello, I need help in translating the following pseudocode in C++ for a function that evaluates a postfix expression. The function evaluate a string of characters Thank you for your help and for your time in advance

Evaluating Postfix Arithmetic Expressions: The Strategy To evaluate a postfix expression: 1. All operands are pushed to the stack as they're read 2. When an operator op is encountered, pop two items n1 and n2 from the stack, calculate op on n1 and n2 and push the result to the stack. Repeat 1 and 2 until the end of input is reached. If there are no sufficient number of operands in the stack at any time, report error and exit. 3. Then output the only remaining item in the stack. Report error is the stack is empty or contains more than one item by then. 4