From 9de810acdc6e7e2bcac03d207632c0b9443596ea Mon Sep 17 00:00:00 2001
From: Jie Luo <jieluo@google.com>
Date: Mon, 6 May 2024 17:33:22 -0700
Subject: [PATCH] use struct instead of ctype. allows the protobuf python
 library to work on cpython 3.11's new wasm target [1] For
 https://github.com/protocolbuffers/protobuf/pull/12212

PiperOrigin-RevId: 631237602
---
 python/google/protobuf/internal/type_checkers.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/python/google/protobuf/internal/type_checkers.py b/python/google/protobuf/internal/type_checkers.py
index e152a43f82..04ccc98500 100755
--- a/python/google/protobuf/internal/type_checkers.py
+++ b/python/google/protobuf/internal/type_checkers.py
@@ -22,7 +22,7 @@ TYPE_TO_DESERIALIZE_METHOD: A dictionary with field types and deserialization
 
 __author__ = 'robinson@google.com (Will Robinson)'
 
-import ctypes
+import struct
 import numbers
 
 from google.protobuf.internal import decoder
@@ -34,7 +34,7 @@ _FieldDescriptor = descriptor.FieldDescriptor
 
 
 def TruncateToFourByteFloat(original):
-  return ctypes.c_float(original).value
+  return struct.unpack('<f', struct.pack('<f', original))[0]
 
 
 def ToShortestFloat(original):