Inputting 2 Hex Numbers and a string in one line of code

Question

I want to enter a line of code that will look something like the following:

cin >> hex >> n1 >> s >> hex >> n2;

The program needs to be able to prompt the user to input a hex number followed by an expression followed by another hex number. I then follow with a series of string compares to compare with the expression and either ad , sub , and etc to the two hex numbers.

I can do this with the c code like

scanf("%x %s %x", &n1, s, &n2);

How can the above statement of scanf be implemented similarly in c++?

Answer 1

您可以使用流操纵器http://www.cplusplus.com/reference/library/manipulators/例如：

std::cin >> std::hex >> n1 >> s >> n2;