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[Chicken-users] How to deal with bit sets in chicken?
From: |
Anthony Carrico |
Subject: |
[Chicken-users] How to deal with bit sets in chicken? |
Date: |
Sat, 30 May 2009 13:36:02 -0400 |
User-agent: |
Mozilla-Thunderbird 2.0.0.19 (X11/20090103) |
For example, according epoll_ctl(2) on the Linux AMD64 platform, the
following are __uint32_t.
(foreign-declare "#include <sys/epoll.h>\n")
(define-foreign-variable _EPOLLET unsigned-integer32 "EPOLLET")
(define EPOLLET _EPOLLET)
(define-foreign-variable _EPOLLONESHOT unsigned-integer32 "EPOLLONESHOT")
(define EPOLLONESHOT _EPOLLONESHOT)
#;2> EPOLLET
1.84467440715621e+19
#;3> EPOLLONESHOT
1073741824
#;4>
Here I declare them as int:
(define-foreign-variable _EPOLLET int "EPOLLET")
(define EPOLLET _EPOLLET)
(define-foreign-variable _EPOLLONESHOT int "EPOLLONESHOT")
(define EPOLLONESHOT _EPOLLONESHOT)
#;8> EPOLLET
-2147483648
#;9> EPOLLONESHOT
1073741824
#;10>
It seems like I can only get fixnums or flonums, is there a way to deal
with genuine 32-bit integers? What is the best way to declare and
manipulate these in Chicken?
Thank you.
--
Anthony Carrico
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