hex2bin -- Decodes a hexadecimally encoded binary string.
Decodes a hexadecimally encoded binary string.
// 1-a. Function form.
void func::hex2bin(string* output, string input)
// 1-b. Function form.
void func::hex2bin(string* variable)
// 2. Command form.
void sub::hex2bin(string input) > output
// 3. Stream form.
void stream::hex2bin() < input > output