fixing reduction redorderable issue

Author: SwayamInSync

quaddtype/meson.build

@@ -0,0 +1,58 @@
+project('numpy_quaddtype', 'c', 'cpp', default_options : ['cpp_std=c++17', 'b_pie=true'])
+
+py_mod = import('python')
+py = py_mod.find_installation()
+
+c = meson.get_compiler('c')
+
+sleef_dep = c.find_library('sleef')
+sleefquad_dep = c.find_library('sleefquad')
+
+incdir_numpy = run_command(py,
+  [
+    '-c',
+    'import numpy; import os; print(os.path.relpath(numpy.get_include()))'
+  ],
+  check: true
+).stdout().strip()
+
+includes = include_directories(
+    [
+        incdir_numpy,
+        'numpy_quaddtype/src',
+    ]
+)
+
+srcs = [
+    'numpy_quaddtype/src/casts.h',
+    'numpy_quaddtype/src/casts.cpp',
+    'numpy_quaddtype/src/scalar.h',
+    'numpy_quaddtype/src/scalar.c',
+    'numpy_quaddtype/src/dtype.h',
+    'numpy_quaddtype/src/dtype.c',
+    'numpy_quaddtype/src/quaddtype_main.c',
+    'numpy_quaddtype/src/scalar_ops.h',
+    'numpy_quaddtype/src/scalar_ops.cpp',
+    'numpy_quaddtype/src/ops.hpp',
+    'numpy_quaddtype/src/umath.h',
+    'numpy_quaddtype/src/umath.cpp',
+    'numpy_quaddtype/src/dragon4.h',
+    'numpy_quaddtype/src/dragon4.c'
+]
+
+py.install_sources(
+    [
+        'numpy_quaddtype/__init__.py',
+    ],
+    subdir: 'numpy_quaddtype',
+    pure: false
+)
+
+py.extension_module('_quaddtype_main',
+srcs,
+c_args: ['-g', '-O0', '-lsleef', '-lsleefquad'],
+dependencies: [sleef_dep, sleefquad_dep],
+install: true,
+subdir: 'numpy_quaddtype',
+include_directories: includes
+)

quaddtype/numpy_quaddtype/src/umath.cpp

@@ -415,7 +415,7 @@ create_quad_binary_ufunc(PyObject *numpy, const char *ufunc_name)
             .nin = 2,
             .nout = 1,
             .casting = NPY_NO_CASTING,
-            .flags = (NPY_ARRAYMETHOD_FLAGS)0,
+            .flags = NPY_METH_IS_REORDERABLE,
             .dtypes = dtypes,
             .slots = slots,
     };