Formatting SSN using string member functions

Question

What are some different ways I can modify a string holding ssn so that

123-45-8999 becomes XXX-XX-8999 ?

Must use string member functions to accomplish this.

Thanks!

What have you tried? There are many possible ways to do this, and listing them all seems unnecessary. — Greg Hewgill, Oct 28 '12 at 23:30
I thought about using s.replace but it appears to replace only with string object. — Tex Qas, Oct 28 '12 at 23:35

score 2 · Answer 1 · edited May 23 '17 at 10:25

2

std::string s = "123-45-8999";

s.replace(0, 6, "XXX-XX");

If the field widths are dynamic, you can combine this idea with the string tokenization we did just earlier to get something more flexible.

edited May 23 '17 at 10:25

Community

answered Oct 28 '12 at 23:31

Kerrek SB

Hey, What if the string size is not known? How can I replace characters in a string of unknown size? – Tex Qas Oct 28 '12 at 23:45
@TexQas: Yes, see the other question. You can use `find` to find the location of the separators. – Kerrek SB Oct 28 '12 at 23:49

1 Answers1