From 864e56359a83125ab9f89450b385099f1cf6da7f Mon Sep 17 00:00:00 2001
From: da-woods <dw-git@d-woods.co.uk>
Date: Wed, 12 Jul 2023 09:28:25 +0100
Subject: [PATCH] Support hex constants in enums (GH-5525)

And other "special" integer constants.

Fixes https://github.com/cython/cython/issues/5524
---
 Cython/Compiler/Nodes.py  | 4 ++--
 tests/run/cpdef_enums.pyx | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/Cython/Compiler/Nodes.py b/Cython/Compiler/Nodes.py
index 857aa0fa49f..16fd204709a 100644
--- a/Cython/Compiler/Nodes.py
+++ b/Cython/Compiler/Nodes.py
@@ -31,7 +31,7 @@
 from . import Options
 from . import DebugFlags
 from .Pythran import has_np_pythran, pythran_type, is_pythran_buffer
-from ..Utils import add_metaclass
+from ..Utils import add_metaclass, str_to_number
 
 
 if sys.version_info[0] >= 3:
@@ -1783,7 +1783,7 @@ def analyse_enum_declarations(self, env, enum_entry, incremental_int_value):
         enum_value = incremental_int_value
         if self.value:
             if self.value.is_literal:
-                enum_value = int(self.value.value)
+                enum_value = str_to_number(self.value.value)
             elif (self.value.is_name or self.value.is_attribute) and self.value.entry:
                 enum_value = self.value.entry.enum_int_value
             else:
diff --git a/tests/run/cpdef_enums.pyx b/tests/run/cpdef_enums.pyx
index 2c30ab7c0b3..83b813eb841 100644
--- a/tests/run/cpdef_enums.pyx
+++ b/tests/run/cpdef_enums.pyx
@@ -106,7 +106,7 @@ cdef extern from *:
 
 cpdef enum CyDefinedHasDuplicates1:
     CY_DUP1_A
-    CY_DUP1_B = 0
+    CY_DUP1_B = 0x00000000
 
 
 cpdef enum CyDefinedHasDuplicates2: