From ea9f168957f7236aae2185f65e0dc608a9a7a37b Mon Sep 17 00:00:00 2001
From: Victor Stinner <vstinner@redhat.com>
Date: Tue, 4 Jun 2019 17:08:24 +0200
Subject: bpo-26219: Fix compiler warning in _PyCode_InitOpcache() (GH-13809)

Fix this MSVC warning:

    objects\codeobject.c(264): warning C4244: '=':
    conversion from 'Py_ssize_t' to 'unsigned char', possible loss of data
---
 Objects/codeobject.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Objects/codeobject.c b/Objects/codeobject.c
index 0d9e5d1..63ce479 100644
--- a/Objects/codeobject.c
+++ b/Objects/codeobject.c
@@ -261,7 +261,8 @@ _PyCode_InitOpcache(PyCodeObject *co)
 
         // TODO: LOAD_METHOD, LOAD_ATTR
         if (opcode == LOAD_GLOBAL) {
-            co->co_opcache_map[i] = ++opts;
+            opts++;
+            co->co_opcache_map[i] = (unsigned char)opts;
             if (opts > 254) {
                 break;
             }
-- 
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