* class.c, compile.c, dir.c, file.c, iseq.c, parse.y, random.c:

  clean unused-value warnings.

* cont.c, process.c, vm_exec.h: clean cast warnings.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@28762 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

11 files changed, 22 insertions, 15 deletions

diff --git a/ChangeLog b/ChangeLog
index 5896590495..f455c53203 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+Tue Jul 27 16:09:12 2010  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* class.c, compile.c, dir.c, file.c, iseq.c, parse.y, random.c:
+	  clean unused-value warnings.
+
+	* cont.c, process.c, vm_exec.h: clean cast warnings.
+
 Mon Jul 26 22:34:37 2010  Tanaka Akira  <akr@fsij.org>
 
 	* ext/pathname/pathname.c (path_taint): Pathname#taint translated from
diff --git a/class.c b/class.c
index 7cc7551b62..7e2f40b0a3 100644
--- a/class.c
+++ b/class.c
@@ -1274,7 +1274,7 @@ rb_singleton_class(VALUE obj)
     VALUE klass = singleton_class_of(obj);
 
     /* ensures an exposed class belongs to its own eigenclass */
-    if (TYPE(obj) == T_CLASS) ENSURE_EIGENCLASS(klass);
+    if (TYPE(obj) == T_CLASS) (void)ENSURE_EIGENCLASS(klass);
 
     return klass;
 }
diff --git a/compile.c b/compile.c
index 77b267c773..fbd8e7cfab 100644
--- a/compile.c
+++ b/compile.c
@@ -5337,7 +5337,7 @@ iseq_build_body(rb_iseq_t *iseq, LINK_ANCHOR *anchor,
 #define CHECK_ARRAY(v)   rb_convert_type(v, T_ARRAY, "Array", "to_ary")
 #define CHECK_STRING(v)  rb_convert_type(v, T_STRING, "String", "to_str")
 #define CHECK_SYMBOL(v)  rb_convert_type(v, T_SYMBOL, "Symbol", "to_sym")
-static inline VALUE CHECK_INTEGER(VALUE v) {NUM2LONG(v); return v;}
+static inline VALUE CHECK_INTEGER(VALUE v) {(void)NUM2LONG(v); return v;}
 
 VALUE
 rb_iseq_build_from_ary(rb_iseq_t *iseq, VALUE locals, VALUE args,
diff --git a/cont.c b/cont.c
index 962ea03664..17f0ccc617 100644
--- a/cont.c
+++ b/cont.c
@@ -564,7 +564,7 @@ fiber_initialize_machine_stack_context(rb_fiber_t *fib, size_t size)
     getcontext(context);
     ptr = fiber_machine_stack_alloc(size);
     context->uc_link = NULL;
-    context->uc_stack.ss_sp = ptr;
+    context->uc_stack.ss_sp = (char *)ptr;
     context->uc_stack.ss_size = size;
     makecontext(context, rb_fiber_start, 0);
     sth->machine_stack_start = ptr + STACK_DIR_UPPER(0, size / sizeof(VALUE));
diff --git a/dir.c b/dir.c
index 8ebd1de116..14317a4ba2 100644
--- a/dir.c
+++ b/dir.c
@@ -352,8 +352,8 @@ static VALUE dir_close(VALUE);
 #define GlobPathValue(str, safe) \
     /* can contain null bytes as separators */	\
     (!RB_TYPE_P(str, T_STRING) ?		\
-     FilePathValue(str) :			\
-     (check_safe_glob(str, safe),		\
+     (void)FilePathValue(str) :			\
+     (void)(check_safe_glob(str, safe),		\
       check_glob_encoding(str), (str)))
 #define check_safe_glob(str, safe) ((safe) ? rb_check_safe_obj(str) : (void)0)
 #define check_glob_encoding(str) rb_enc_check((str), rb_enc_from_encoding(rb_usascii_encoding()))
diff --git a/file.c b/file.c
index 37c9c47588..9c94e7f555 100644
--- a/file.c
+++ b/file.c
@@ -3119,7 +3119,7 @@ file_expand_path(VALUE fname, VALUE dname, int abs_mode, VALUE result)
 
 #define check_expand_path_args(fname, dname) \
     ((fname = rb_get_path(fname)), \
-     (NIL_P(dname) ? dname : (dname = rb_get_path(dname))))
+     (void)(NIL_P(dname) ? dname : (dname = rb_get_path(dname))))
 
 static VALUE
 file_expand_path_1(VALUE fname)
diff --git a/iseq.c b/iseq.c
index fc9b101cab..d7c8fb3f03 100644
--- a/iseq.c
+++ b/iseq.c
@@ -436,7 +436,7 @@ rb_iseq_new_with_bopt(NODE *node, VALUE name, VALUE filename, VALUE filepath, VA
 #define CHECK_ARRAY(v)   rb_convert_type(v, T_ARRAY, "Array", "to_ary")
 #define CHECK_STRING(v)  rb_convert_type(v, T_STRING, "String", "to_str")
 #define CHECK_SYMBOL(v)  rb_convert_type(v, T_SYMBOL, "Symbol", "to_sym")
-static inline VALUE CHECK_INTEGER(VALUE v) {NUM2LONG(v); return v;}
+static inline VALUE CHECK_INTEGER(VALUE v) {(void)NUM2LONG(v); return v;}
 static VALUE
 iseq_load(VALUE self, VALUE data, VALUE parent, VALUE opt)
 {
diff --git a/parse.y b/parse.y
index 3aeb8309c3..ba5213577a 100644
--- a/parse.y
+++ b/parse.y
@@ -6307,9 +6307,9 @@ parser_magic_comment(struct parser_params *parser, const char *str, long len)
     VALUE name = 0, val = 0;
     const char *beg, *end, *vbeg, *vend;
 #define str_copy(_s, _p, _n) ((_s) \
-	? (rb_str_resize((_s), (_n)), \
+	? (void)(rb_str_resize((_s), (_n)), \
 	   MEMCPY(RSTRING_PTR(_s), (_p), char, (_n)), (_s)) \
-	: ((_s) = STR_NEW((_p), (_n))))
+	: (void)((_s) = STR_NEW((_p), (_n))))
 
     if (len <= 7) return FALSE;
     if (!(beg = magic_comment_marker(str, len))) return FALSE;
@@ -6474,12 +6474,12 @@ parser_prepare(struct parser_params *parser)
 #else
 #define ambiguous_operator(op, syn) dispatch2(operator_ambiguous, ripper_intern(op), rb_str_new_cstr(syn))
 #endif
-#define warn_balanced(op, syn) \
+#define warn_balanced(op, syn) ((void) \
     (last_state != EXPR_CLASS && last_state != EXPR_DOT && \
      last_state != EXPR_FNAME && last_state != EXPR_ENDFN && \
      last_state != EXPR_ENDARG && \
      space_seen && !ISSPACE(c) && \
-     (ambiguous_operator(op, syn), 0))
+     (ambiguous_operator(op, syn), 0)))
 
 static int
 parser_yylex(struct parser_params *parser)
@@ -7291,7 +7291,7 @@ parser_yylex(struct parser_params *parser)
 	}
 	pushback(c);
 	if (IS_SPCARG(c)) {
-	    arg_ambiguous();
+	    (void)arg_ambiguous();
 	    lex_strterm = NEW_STRTERM(str_regexp, '/', 0);
 	    return tREGEXP_BEG;
 	}
diff --git a/process.c b/process.c
index 84fed6053c..b230add18b 100644
--- a/process.c
+++ b/process.c
@@ -985,7 +985,7 @@ void rb_thread_reset_timer_thread(void);
 static int forked_child = 0;
 
 #define before_exec() \
-    (rb_enable_interrupt(), (forked_child ? 0 : (rb_thread_stop_timer_thread(), 1)))
+    (rb_enable_interrupt(), (void)(forked_child ? 0 : (rb_thread_stop_timer_thread(), 1)))
 #define after_exec() \
   (rb_thread_reset_timer_thread(), rb_thread_start_timer_thread(), forked_child = 0, rb_disable_interrupt())
 #define before_fork() before_exec()
diff --git a/random.c b/random.c
index 2c57ffc074..49d0a7525f 100644
--- a/random.c
+++ b/random.c
@@ -1066,7 +1066,7 @@ random_rand(int argc, VALUE *argv, VALUE obj)
     }
     else {
 	v = Qnil;
-	NUM2LONG(vmax);
+	(void)NUM2LONG(vmax);
     }
     if (NIL_P(v)) {
 	VALUE mesg = rb_str_new_cstr("invalid argument - ");
diff --git a/vm_exec.h b/vm_exec.h
index 9ae81794bd..7696d7172d 100644
--- a/vm_exec.h
+++ b/vm_exec.h
@@ -112,7 +112,7 @@ error !
 /* for GCC 3.4.x */
 #define TC_DISPATCH(insn) \
   INSN_DISPATCH_SIG(insn); \
-  goto *GET_CURRENT_INSN(); \
+  goto *(void const *)GET_CURRENT_INSN(); \
   ;
 
 #else