https://git.ruby-lang.org/ruby.git/commit/?id=169b1d1aca

From 169b1d1aca0c26d38f8bbd25ecaf5fdb8015f5cf Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Fri, 4 Sep 2020 11:46:50 +0900
Subject: Initialize loop variables of list_for_each for MS VC


diff --git a/ractor.c b/ractor.c
index 9059d42..a0cd092 100644
--- a/ractor.c
+++ b/ractor.c
@@ -177,7 +177,7 @@ ractor_mark(void *ptr) https://github.com/ruby/ruby/blob/trunk/ractor.c#L177
     rb_gc_mark(r->r_stderr);
 
     if (r->threads.cnt > 0) {
-        rb_thread_t *th;
+        rb_thread_t *th = 0;
         list_for_each(&r->threads.set, th, lt_node) {
             VM_ASSERT(th != NULL);
             rb_gc_mark(th->self);
@@ -1640,7 +1640,7 @@ ractor_terminal_interrupt_all(rb_vm_t *vm) https://github.com/ruby/ruby/blob/trunk/ractor.c#L1640
 {
     if (vm->ractor.cnt > 1) {
         // send terminate notification to all ractors
-        rb_ractor_t *r;
+        rb_ractor_t *r = 0;
         list_for_each(&vm->ractor.set, r, vmlr_node) {
             if (r != vm->ractor.main_ractor) {
                 rb_ractor_terminate_interrupt_main_thread(r);
@@ -1795,7 +1795,7 @@ void https://github.com/ruby/ruby/blob/trunk/ractor.c#L1795
 rb_ractor_dump(void)
 {
     rb_vm_t *vm = GET_VM();
-    rb_ractor_t *r;
+    rb_ractor_t *r = 0;
 
     list_for_each(&vm->ractor.set, r, vmlr_node) {
         if (r != vm->ractor.main_ractor) {
diff --git a/vm.c b/vm.c
index f2ce857..15b305e 100644
--- a/vm.c
+++ b/vm.c
@@ -2324,7 +2324,7 @@ rb_vm_mark(void *ptr) https://github.com/ruby/ruby/blob/trunk/vm.c#L2324
     RUBY_GC_INFO("-------------------------------------------------\n");
     if (ptr) {
 	rb_vm_t *vm = ptr;
-        rb_ractor_t *r;
+        rb_ractor_t *r = 0;
         long i, len;
         const VALUE *obj_ary;
 
diff --git a/vm_sync.c b/vm_sync.c
index e3104d1..d5b25e5 100644
--- a/vm_sync.c
+++ b/vm_sync.c
@@ -224,7 +224,7 @@ rb_vm_barrier(void) https://github.com/ruby/ruby/blob/trunk/vm_sync.c#L224
         rb_vm_ractor_blocking_cnt_inc(vm, cr, __FILE__, __LINE__);
 
         // send signal
-        rb_ractor_t *r;
+        rb_ractor_t *r = 0;
         list_for_each(&vm->ractor.set, r, vmlr_node) {
             if (r != cr) {
                 rb_ractor_vm_barrier_interrupt_running_thread(r);
-- 
cgit v0.10.2


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