https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113887
Bug ID: 113887
Summary: no support for %w128 length modifiers
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: jens.gustedt at inria dot fr
Target Milestone: ---
With C23 and the %w length modifiers and `_BitInt(128)` literals, it will
finally be possible to have `[u]int128_t` types consistently as type aliases
for all architectures where gcc defines the `__int128` types. I am currently
implementing such a support on musl, but unfortunately the %w128 length
modifiers are diagnosed as being wrong.
```
#include <stdio.h>
int main() {
unsigned __int128 x = 2;
printf("%w128x\n", x);
}
```
