| Issue |
95936
|
| Summary |
Clang incorrectly accepts GCC statement-_expression_ in template-argument lists
|
| Labels |
clang
|
| Assignees |
|
| Reporter |
Alcaro
|
https://github.com/llvm/llvm-project/labels/extension%3Agnu https://github.com/llvm/llvm-project/labels/accepts-invalid https://github.com/llvm/llvm-project/labels/clang%3Afrontend, I think
```c++
template<bool b>
void square() {}
void cube()
{
square<({ 2+2==4; })>();
}
```
Clang instantiates square<true>(), but GCC says `<source>:6:12: error: statement-expressions are not allowed outside functions nor in template-argument lists`. https://godbolt.org/z/nbKr1soen
This is a GCC extension, so if they say it's not valid, then it isn't. (Unless Clang wants to have extensions to GCC extensions, but if so, it should probably have a -pedantic warning or something.)
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