[ruby-cvs:69009] shyouhei:r61828 (trunk): __alignof__ to take alignment of a type

[shyouhei at ruby-lang.org]

shyouhei	2018-01-15 11:35:17 +0900 (Mon, 15 Jan 2018)

  New Revision: 61828

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=61828

  Log:
    __alignof__ to take alignment of a type
    
    C11 and C++11 has this feature so why not use it when available.

  Modified files:
    trunk/bignum.c
    trunk/configure.ac
    trunk/include/ruby/defines.h
    trunk/win32/Makefile.sub