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.
Added by nobu (Nobuyoshi Nakada) over 9 years ago
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