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the bug was FreeBSD specific.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@9805 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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akr 2006-01-08 04:14:11 +00:00
parent 94fc5c9878
commit 5695c588c0
2 changed files with 4 additions and 4 deletions
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6
ChangeLog
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@ -6,9 +6,9 @@ Sat Jan 7 15:40:07 2006 Nobuyoshi Nakada <nobu@ruby-lang.org>
Sat Jan 7 06:24:18 2006 Tanaka Akira <akr@m17n.org> Sat Jan 7 06:24:18 2006 Tanaka Akira <akr@m17n.org>
* eval.c (rb_fd_isset): compare the result of FD_ISSET with 0 to * eval.c (rb_fd_isset): compare the result of FD_ISSET with 0 to
avoid BSD bug. BSD defines FD_ISSET as just a bitmap of unsigned avoid FreeBSD bug. FreeBSD defines FD_ISSET as just a bitmap of
long. So returning the value from rb_fd_isset discards upper unsigned long. So returning the value from rb_fd_isset discards
32bits on LP64 environment. upper 32bits on LP64 environment.
http://www.freebsd.org/cgi/query-pr.cgi?pr=ia64/91421 http://www.freebsd.org/cgi/query-pr.cgi?pr=ia64/91421
Fri Jan 6 02:20:18 2006 Tanaka Akira <akr@m17n.org> Fri Jan 6 02:20:18 2006 Tanaka Akira <akr@m17n.org>

2
eval.c
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@ -9644,7 +9644,7 @@ rb_fd_isset(n, fds)
const rb_fdset_t *fds; const rb_fdset_t *fds;
{ {
if (n >= fds->maxfd) return 0; if (n >= fds->maxfd) return 0;
return FD_ISSET(n, fds->fdset) != 0; /* "!= 0" avoids BSD bug */ return FD_ISSET(n, fds->fdset) != 0; /* "!= 0" avoids FreeBSD bug */
} }
void void