bpo-33041: Fix downcast warning on Windows (#6595)
Cast pointer difference from ssize_t to int: a frame is very unlikely
larger than 2 GB.
diff --git a/Objects/frameobject.c b/Objects/frameobject.c
index 864a8f9..14935a2 100644
--- a/Objects/frameobject.c
+++ b/Objects/frameobject.c
@@ -297,7 +297,7 @@
if (delta_iblock > 0) {
f->f_iblock -= delta_iblock;
PyTryBlock *b = &f->f_blockstack[f->f_iblock];
- delta += (f->f_stacktop - f->f_valuestack) - b->b_level;
+ delta += (int)(f->f_stacktop - f->f_valuestack) - b->b_level;
if (b->b_type == SETUP_FINALLY &&
code[b->b_handler] == WITH_CLEANUP_START)
{