[Bug #20322] Fix rb_enc_interned_str_cstr null encoding
The documentation for `rb_enc_interned_str_cstr` notes that `enc` can be
a null pointer, but this currently causes a segmentation fault when
trying to autoload the encoding. This commit fixes the issue by checking
for NULL before calling `rb_enc_autoload`.
Related issues
Bug #20322: rb_enc_interned_str_cstr doesn't accept null pointer for encoding
Added by nagachika (Tomoyuki Chikanaga) about 1 year ago
merge revision(s) 7e4b1f8e1935a10df3c41ee60ca0987d73281126: [Backport #20322]