kosaki	2017-10-21 21:57:14 +0900 (Sat, 21 Oct 2017)

  New Revision: 60262

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=60262

  Log:
    kill "variable set but not used" warning
    
    Currently, scanner.c makes following warning. Fix it.
    
    ../../../ext/psych/yaml/scanner.c: In function ?\226?\128?\152yaml_parser_decrease_flow_level?\226?\128?\153:
    ../../../ext/psych/yaml/scanner.c:1189:23: warning: variable ?\226?\128?\152dummy_key?\226?\128?\153 set but not used [-Wunused-but-set-variable]
         yaml_simple_key_t dummy_key;    /* Used to eliminate a compiler warning. */

  Modified files:
    trunk/ext/psych/yaml/scanner.c
Index: ext/psych/yaml/scanner.c
===================================================================
--- ext/psych/yaml/scanner.c	(revision 60261)
+++ ext/psych/yaml/scanner.c	(revision 60262)
@@ -1186,11 +1186,9 @@ yaml_parser_increase_flow_level(yaml_par https://github.com/ruby/ruby/blob/trunk/ext/psych/yaml/scanner.c#L1186
 static int
 yaml_parser_decrease_flow_level(yaml_parser_t *parser)
 {
-    yaml_simple_key_t dummy_key;    /* Used to eliminate a compiler warning. */
-
     if (parser->flow_level) {
         parser->flow_level --;
-        dummy_key = POP(parser, parser->simple_keys);
+	(void)POP(parser, parser->simple_keys);
     }
 
     return 1;

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