Pauline Middelink 3f1ab1fd81 Updated String library to use C++11 iterators. (#2267) ...

This will allow using the String library in a ranged for loop:

```C++
String s("Hi, this is a test");

for (const char& ch : s) {
  Serial.print(ch);
}
```

and even modify

```C++
String s("Hi, this is another test");

for (char& ch : s) {
  ch++;
}
Serial.println(s);
```

2016-07-18 19:31:34 +08:00

..

esp8266

Updated String library to use C++11 iterators. (#2267)

2016-07-18 19:31:34 +08:00