queue with string

hellow ..

how to wright a function that compresses a string by deleting all space characters in the string?

hint" insert none space characters from the string into the queue.when you reach the end of the string ,dequeue the characters from the queue and place them back into the string"

thanks

You'd need a queue<char>.

Using the queue is no rocket science.

well i just started my jurney in c++ thats why iam not that good in impleminting functions

Is it a requirement of some exercise that you must use a queue? Can you just use the remove_if STL function and pass it a functor that equates to true for any space characters?

yes it is a reqirement

Quote:

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hint" insert none space characters from the string into the queue.when you reach the end of the string ,dequeue the characters from the queue and place them back into the string"

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And what have you tried? This describes exactly how you should proceed.

The functions you might need:
std::queue<char>: push - puts in the queue, pop - removes from the queue, top - looks up the current item, empty - tests if something left to read from the queue.

std::string: operator[] - for looking up a character, operator+= - for appending (a character), clear - for emptying the string.