C++ style cast from unsigned char * to const char *

Question

I have:

unsigned char *foo();
std::string str;
str.append(static_cast(foo()));

The error: invalid static_cast from

Answer 1

Hope it help. :)

const unsigned attribName = getname();
const unsigned attribVal = getvalue();
const char *attrName=NULL, *attrVal=NULL;
attrName = (const char*) attribName;
attrVal = (const char*) attribVal;