RecognizedString C++ Algorithm

Hi, I need help creating this function. I have a pseudo-code but I can't get it running in a function, can someone help me?

Here is the pseudo-code:

// Checks the string aString to verify that it is in language L.

// Returns true if aString is in L, false otherwise.

recognizeString(aString: string): boolean

aStack = a new empty stack

// Push the characters that are before the $ (that is, the characters in s) onto the stack

i = 0

ch = character at position i in aString

while (ch is not a '$')

{

aStack.push(ch)

i++

ch = character at position i in aString

}

// Skip the $

i++

// Match the reverse of s

inLanguage = true // Assume string is in language

while (inLanguage and i < length of aString)

{

if (!aStack.isEmpty())

{

stackTop = aStack.peek()

aStack.pop()

ch = character at position i in aString

if (stackTop equals ch)

i++ // Characters match

else

inLanguage = false // Characters do not match (top of stack is not ch )

}

else

inLanguage = false // Stack is empty (first half of string is shorter

// than second half)

}

if (inLanguage and aStack.isEmpty())

aString is in language

else

aString is not in language