ruby.h: fix for old clang

* include/ruby/ruby.h (rb_scan_args): add nul padding here to
  apply to all references.

* include/ruby/ruby.h (rb_scan_args_verify): move length mismatch
  check outside conditional operators.

Since old clang cannot optimize away string literal dereference by
an immediate index, e.g., ""[0], and both of true and false side
expressions are compiled and warned unintentionally.  With such
old compilers, the check in rb_scan_args() does not work but may
result unpredictable value if the format is wrong.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55176 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

0 files changed, 0 insertions, 0 deletions