Get rid of shadowing local variables

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60204 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

bignum.c

@@ -903,8 +903,6 @@ bary_pack(int sign, BDIGIT *ds, size_t num_bdigits, void *words, size_t numwords
     }
 
     if ((flags & INTEGER_PACK_2COMP) && (sign < 0 && numwords != 0)) {
-        unsigned char *buf;
-
         int word_num_partialbits;
         size_t word_num_fullbytes;
 

configure.ac

@@ -876,10 +876,13 @@ AS_IF([test "$GCC:${warnflags+set}:no" = yes::no], [
 		 -Werror=implicit-function-declaration \
 		 -Werror=division-by-zero \
 		 -Werror=deprecated-declarations \
+		 -Werror=misleading-indentation \
 		 -Wno-packed-bitfield-compat \
 		 -Wsuggest-attribute=noreturn \
 		 -Wsuggest-attribute=format \
 		 -Wimplicit-fallthrough=0 \
+		 -Werror=duplicated-cond \
+		 -Werror=restrict \
 		 $extra_warning \
 		 ; do
 	AS_IF([test "$particular_werror_flags" != yes], [

dir.c

@@ -2154,8 +2154,8 @@ glob_helper(
 		}
 #if USE_NAME_ON_FS == USE_NAME_ON_FS_REAL_BASENAME
 		if ((*cur)->type == ALPHA) {
-		    long base = pathlen + (dirsep != 0);
-		    buf = replace_real_basename(buf, base, enc, IF_NORMALIZE_UTF8PATH(1)+0,
+		    buf = replace_real_basename(buf, pathlen + (dirsep != 0), enc,
+						IF_NORMALIZE_UTF8PATH(1)+0,
 						flags, &new_pathtype);
 		    if (!buf) break;
 		}

enumerator.c

@@ -1119,11 +1119,11 @@ enumerator_size(VALUE obj)
 	for (i = 0; i < RARRAY_LEN(e->procs); i++) {
 	    VALUE proc = RARRAY_AREF(e->procs, i);
 	    struct proc_entry *entry = proc_entry_ptr(proc);
-	    lazyenum_size_func *size = entry->fn->size;
-	    if (!size) {
+	    lazyenum_size_func *size_fn = entry->fn->size;
+	    if (!size_fn) {
 		return Qnil;
 	    }
-	    receiver = (*size)(proc, receiver);
+	    receiver = (*size_fn)(proc, receiver);
 	}
 	return receiver;
     }

file.c

@@ -3946,11 +3946,11 @@ realpath_rec(long *prefixlenp, VALUE *resolvedp, const char *unresolved,
 		    link_names = skipprefixroot(link_prefix, link_prefix + RSTRING_LEN(link), rb_enc_get(link));
 		    link_prefixlen = link_names - link_prefix;
 		    if (link_prefixlen > 0) {
-			rb_encoding *enc, *linkenc = rb_enc_get(link);
+			rb_encoding *tmpenc, *linkenc = rb_enc_get(link);
 			link_orig = link;
 			link = rb_str_subseq(link, 0, link_prefixlen);
-			enc = rb_enc_check(*resolvedp, link);
-			if (enc != linkenc) link = rb_str_conv_enc(link, linkenc, enc);
+			tmpenc = rb_enc_check(*resolvedp, link);
+			if (tmpenc != linkenc) link = rb_str_conv_enc(link, linkenc, tmpenc);
 			*resolvedp = link;
 			*prefixlenp = link_prefixlen;
 		    }

gc.c

@@ -5202,11 +5202,13 @@ gc_verify_heap_page(rb_objspace_t *objspace, struct heap_page *page, VALUE obj)
     int zombie_objects = 0;
 
     for (i=0; i<page->total_slots; i++) {
-	VALUE obj = (VALUE)&page->start[i];
-	if (RBASIC(obj) == 0) free_objects++;
-	if (BUILTIN_TYPE(obj) == T_ZOMBIE) zombie_objects++;
-	if (RVALUE_PAGE_UNCOLLECTIBLE(page, obj) && RVALUE_PAGE_WB_UNPROTECTED(page, obj)) has_remembered_shady = TRUE;
-	if (RVALUE_PAGE_MARKING(page, obj)) {
+	VALUE val = (VALUE)&page->start[i];
+	if (RBASIC(val) == 0) free_objects++;
+	if (BUILTIN_TYPE(val) == T_ZOMBIE) zombie_objects++;
+	if (RVALUE_PAGE_UNCOLLECTIBLE(page, val) && RVALUE_PAGE_WB_UNPROTECTED(page, val)) {
+	    has_remembered_shady = TRUE;
+	}
+	if (RVALUE_PAGE_MARKING(page, val)) {
 	    has_remembered_old = TRUE;
 	    rememberd_old_objects++;
 	}
@@ -5216,9 +5218,9 @@ gc_verify_heap_page(rb_objspace_t *objspace, struct heap_page *page, VALUE obj)
 	page->flags.has_remembered_objects == FALSE && has_remembered_old == TRUE) {
 
 	for (i=0; i<page->total_slots; i++) {
-	    VALUE obj = (VALUE)&page->start[i];
-	    if (RVALUE_PAGE_MARKING(page, obj)) {
-		fprintf(stderr, "marking -> %s\n", obj_info(obj));
+	    VALUE val = (VALUE)&page->start[i];
+	    if (RVALUE_PAGE_MARKING(page, val)) {
+		fprintf(stderr, "marking -> %s\n", obj_info(val));
 	    }
 	}
 	rb_bug("page %p's has_remembered_objects should be false, but there are remembered old objects (%d). %s",

io.c

@@ -3575,9 +3575,9 @@ io_getc(rb_io_t *fptr, rb_encoding *enc)
     VALUE str;
 
     if (NEED_READCONV(fptr)) {
-        VALUE str = Qnil;
 	rb_encoding *read_enc = io_read_encoding(fptr);
 
+	str = Qnil;
 	SET_BINARY_MODE(fptr);
         make_readconv(fptr, 0);