https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97266
Bug ID: 97266
Summary: "enum constant in boolean context" warning seems
incorrect
Product: gcc
Version: 8.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: mfarazma.ext at gmail dot com
Target Milestone: ---
```
#include <iostream>
enum ValidateFlag : int8_t {
a = 0, b , c
};
int main(){
bool t = static_cast<bool>(c);
return static_cast<int>(t);
}
```
Compiling the above code with `g++ -Wall test.cc` generates this warning:
warning: enum constant in boolean context [-Wint-in-bool-context]
The behaviour doesn't seem correct as `c` is just an `int8_t` value, and
casting an `int8_t` value to `bool` does not generate any warnings:
```
int8_t c = 2;
bool t = static_cast<bool>(c);
return static_cast<int>(t);
```
Having only 2 values in the enum also makes it compile fine:
```
enum ValidateFlag : int8_t {
a = 0, c
};
```
