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ruby-changes:41517

From: nobu <ko1@a...>
Date: Tue, 19 Jan 2016 17:35:25 +0900 (JST)
Subject: [ruby-changes:41517] nobu:r53591 (trunk): io.c: suppress warning

nobu	2016-01-19 17:36:02 +0900 (Tue, 19 Jan 2016)

  New Revision: 53591

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=53591

  Log:
    io.c: suppress warning
    
    * io.c (rb_update_max_fd): get rid of unused-value warning.

  Modified files:
    trunk/io.c
Index: io.c
===================================================================
--- io.c	(revision 53590)
+++ io.c	(revision 53591)
@@ -197,16 +197,17 @@ rb_update_max_fd(int fd) https://github.com/ruby/ruby/blob/trunk/io.c#L197
 {
     struct stat buf;
     rb_atomic_t afd = (rb_atomic_t)fd;
+    rb_atomic_t max_fd = max_file_descriptor;
 
-    if (afd <= max_file_descriptor)
+    if (afd <= max_fd)
         return;
 
     if (fstat(fd, &buf) != 0 && errno == EBADF) {
         rb_bug("rb_update_max_fd: invalid fd (%d) given.", fd);
     }
 
-    while (max_file_descriptor < afd) {
-	ATOMIC_CAS(max_file_descriptor, max_file_descriptor, afd);
+    while (max_fd < afd) {
+	max_fd = ATOMIC_CAS(max_file_descriptor, max_fd, afd);
     }
 }
 

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