About STRING* and char

Hi, all.

How to set char from STRING*?
------------------------------------------
char bbb;
STRING* aaa = "123";

void test()
{
//bbb = aaa ?
//I need bbb ="123";
//Or how to programming?

}

THANKS ALL.

AND

TESTTING

char* bbb;
STRING* aaa = "123";

USE

bbb = _chr(aaa);