How to test if a string contains any digits in C++

Question

I want to know if a string has any digits, or if there are no digits. Is there a function that easily does this?

Answer 1

#include 
#include 
#include 

if (std::find_if(s.begin(), s.end(), (int(*)(int))std::isdigit) != s.end())
{
  // contains digit
}