[libc-commits] [libc] [libc] Add printf error handling (PR #162876)

[Joseph Huber via libc-commits]

jhuber6 wrote:

Missing this I suppose, not all platform support the same set of errno flags.
```
/home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.src/libc/test/src/stdio/snprintf_test.cpp:75:19: error: use of undeclared identifier 'EOVERFLOW'
   75 |   ASSERT_ERRNO_EQ(EOVERFLOW);
      |                   ^~~~~~~~~
```

https://github.com/llvm/llvm-project/pull/162876