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well, you're not using a string, you're using a char, which are of course different things. i'm fairly sure c has NO string type, and if it does it'd only be a vague char wrapper. i know that the C++ String (capital S means it's a..) class is naturally not a primitive data type at any length.
you should simply return a pointer to a char, which you can then interpret as a string (in sematic terms, not datatype terms) as you wish
what i need to know is what [some type] has to be? is it long or int, or some kind of other construct?
the problem with the solution you gave me (previous reply) is that i have this function in another .c file than the rest of the code. this function is called multiple times, and i thought it is better to make a separate function which returns a value than to declare variables multiple time with extern and so.
This will be memory leak city if you do not clean up the memory aftwards.
That is why I like my previous example better, so long as you pass in the length of the string. (I did not do). You wouldn't need to do externs either. Just properly protype your functions and you should have no problems.