int evaluatePostfix$($char$*$ postfix$)\{$ int i; int result; int top $=-1$; int stack$[$Max$\_$Length$]$; for $($i $=0$; postfix$[$i$]!=\text{'}\backslash 0\text{'}$; i$++)\{$ if $($isOperand$($postfix$[$i$]))\{$ stack$[++$top$]=($int$)($postfix$[$i$]-\text{'}0\text{'})$; $\}$ else $\{$ int a $=$ stack$[$top$--]$; int b $=$ stack$[$top$--]$; result $=$ evaluate$($b$,$ a$,$ postfix$[$i$])$; stack$[++$top$]=$ result; $\}\}$ return result; $//$ Return the final result$\}$

Correct this function that it can evalute corrctly