# error: expected unqualified-id before 'volatile'

**URL:** <https://forum.arduino.cc/t/error-expected-unqualified-id-before-volatile/49149>\
**Category:** Troubleshooting\
**Created:** [September 3, 2010, 12:08am UTC](https://forum.arduino.cc/t/error-expected-unqualified-id-before-volatile/49149 "2010-09-03T00:08:37Z")\
**Posts on this page:** 1\
**Showing post:** 8

<div class="post-metadata">

**Author:** ![vinceherman](https://avatars.discourse-cdn.com/v4/letter/v/e8c25b/32.png) [@vinceherman](https://forum.arduino.cc/u/vinceherman)\
**Post date:** [September 3, 2010, 2:01pm UTC](https://forum.arduino.cc/t/error-expected-unqualified-id-before-volatile/49149/8 "2010-09-03T14:01:15Z")

</div>

```cpp
void setup(){
}

void loop(){
}

long PING(){
return 7;
}

```

does not compile  
error: expected unqualified-id before 'volatile'

```cpp
void setup(){
}

void loop(){
}

long ZING(){
return 7;
}

```

Does compile

---

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