kosaki	2017-10-21 22:01:51 +0900 (Sat, 21 Oct 2017)

  New Revision: 60263

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=60263

  Log:
    kill variable set but not used warning
    
    Currently, dummy_mark variable makes following warnings. Let's fix it.
    
    ../../../ext/psych/yaml/parser.c: In function ?\226?\128?\152yaml_parser_parse_block_sequence_entry?\226?\128?\153:
    ../../../ext/psych/yaml/parser.c:762:21: warning: variable ?\226?\128?\152dummy_mark?\226?\128?\153 set but not used [-Wunused-but-set-variable]
             yaml_mark_t dummy_mark;     /* Used to eliminate a compiler warning. */
                         ^

  Modified files:
    trunk/ext/psych/yaml/parser.c
Index: ext/psych/yaml/parser.c
===================================================================
--- ext/psych/yaml/parser.c	(revision 60262)
+++ ext/psych/yaml/parser.c	(revision 60263)
@@ -759,9 +759,8 @@ yaml_parser_parse_block_sequence_entry(y https://github.com/ruby/ruby/blob/trunk/ext/psych/yaml/parser.c#L759
 
     else if (token->type == YAML_BLOCK_END_TOKEN)
     {
-        yaml_mark_t dummy_mark;     /* Used to eliminate a compiler warning. */
         parser->state = POP(parser, parser->states);
-        dummy_mark = POP(parser, parser->marks);
+        (void)POP(parser, parser->marks);
         SEQUENCE_END_EVENT_INIT(*event, token->start_mark, token->end_mark);
         SKIP_TOKEN(parser);
         return 1;
@@ -869,9 +868,8 @@ yaml_parser_parse_block_mapping_key(yaml https://github.com/ruby/ruby/blob/trunk/ext/psych/yaml/parser.c#L868
 
     else if (token->type == YAML_BLOCK_END_TOKEN)
     {
-        yaml_mark_t dummy_mark;     /* Used to eliminate a compiler warning. */
         parser->state = POP(parser, parser->states);
-        dummy_mark = POP(parser, parser->marks);
+        (void)POP(parser, parser->marks);
         MAPPING_END_EVENT_INIT(*event, token->start_mark, token->end_mark);
         SKIP_TOKEN(parser);
         return 1;
@@ -952,7 +950,6 @@ yaml_parser_parse_flow_sequence_entry(ya https://github.com/ruby/ruby/blob/trunk/ext/psych/yaml/parser.c#L950
         yaml_event_t *event, int first)
 {
     yaml_token_t *token;
-    yaml_mark_t dummy_mark;     /* Used to eliminate a compiler warning. */
 
     if (first) {
         token = PEEK_TOKEN(parser);
@@ -997,7 +994,7 @@ yaml_parser_parse_flow_sequence_entry(ya https://github.com/ruby/ruby/blob/trunk/ext/psych/yaml/parser.c#L994
     }
 
     parser->state = POP(parser, parser->states);
-    dummy_mark = POP(parser, parser->marks);
+    (void)POP(parser, parser->marks);
     SEQUENCE_END_EVENT_INIT(*event, token->start_mark, token->end_mark);
     SKIP_TOKEN(parser);
     return 1;
@@ -1104,7 +1101,6 @@ yaml_parser_parse_flow_mapping_key(yaml_ https://github.com/ruby/ruby/blob/trunk/ext/psych/yaml/parser.c#L1101
         yaml_event_t *event, int first)
 {
     yaml_token_t *token;
-    yaml_mark_t dummy_mark;     /* Used to eliminate a compiler warning. */
 
     if (first) {
         token = PEEK_TOKEN(parser);
@@ -1158,7 +1154,7 @@ yaml_parser_parse_flow_mapping_key(yaml_ https://github.com/ruby/ruby/blob/trunk/ext/psych/yaml/parser.c#L1154
     }
 
     parser->state = POP(parser, parser->states);
-    dummy_mark = POP(parser, parser->marks);
+    (void)POP(parser, parser->marks);
     MAPPING_END_EVENT_INIT(*event, token->start_mark, token->end_mark);
     SKIP_TOKEN(parser);
     return 1;

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