$ touch 'weird>name'
$ ls -l
-rw-r--r--  1 user  user   0 28 Mag 11:05 weird>name

#include <weird>name>

int main() {
  return weird_function();
}

test.cpp:1:10: fatal error: 'weird' file not found
#include <weird>name>

#include "weird>name"