https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115605
Bug ID: 115605
Summary: structured binding break if a variable named
tuple_size is visibile at the decomposition site
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: marco.rubini08 at gmail dot com
Target Milestone: ---
Example:
```
// a.cpp
#include <array>
int foo() {
int const tuple_size = 5;
std::array<int, 3> array {1, 2, 3};
auto [a, b, c] = array;
return c;
}
```
g++ std=c++20 a.cpp
```
a.cpp: In function ‘int foo()’:
a.cpp:6:10: error: 3 names provided for structured binding
6 | auto [a, b, c] = array;
| ^~~~~~~~~
a.cpp:6:10: note: while ‘std::array<int, 3>’ decomposes into 1 element
```
