Cleanup gmp_info

Author: skirpichev

main.c

@@ -3370,13 +3370,12 @@ The attributes are read only.");
 
 static PyStructSequence_Field gmp_info_fields[] = {
     {"bits_per_limb", "size of a limb in bits"},
-    {"nail_bits", "number of bits left unused at the top of each limb"},
     {"sizeof_limb", "size in bytes of the C type used to represent a limb"},
     {"version", "the GNU GMP version"},
     {NULL}};
 
 static PyStructSequence_Desc gmp_info_desc = {
-    "gmp.gmplib_info", gmp_info__doc__, gmp_info_fields, 4};
+    "gmp.gmplib_info", gmp_info__doc__, gmp_info_fields, 3};
 
 PyMODINIT_FUNC
 PyInit_gmp(void)
@@ -3420,9 +3419,8 @@ PyInit_gmp(void)
         /* LCOV_EXCL_STOP */
     }
     PyStructSequence_SET_ITEM(gmp_info, 0, PyLong_FromLong(GMP_LIMB_BITS));
-    PyStructSequence_SET_ITEM(gmp_info, 1, PyLong_FromLong(GMP_NAIL_BITS));
-    PyStructSequence_SET_ITEM(gmp_info, 2, PyLong_FromLong(sizeof(mp_limb_t)));
-    PyStructSequence_SET_ITEM(gmp_info, 3, PyUnicode_FromString(gmp_version));
+    PyStructSequence_SET_ITEM(gmp_info, 1, PyLong_FromLong(sizeof(mp_limb_t)));
+    PyStructSequence_SET_ITEM(gmp_info, 2, PyUnicode_FromString(gmp_version));
     if (PyErr_Occurred()) {
         /* LCOV_EXCL_START */
         Py_DECREF(gmp_info);

tests/conftest.py

@@ -13,8 +13,7 @@
 
 def pytest_report_header(config):
     print(f"""
-  The GNU GMP version: {gmp.gmp_info[3]}
+  The GNU GMP version: {gmp.gmp_info[2]}
   Bits per limb:       {gmp.gmp_info[0]}
-  Nails bits:          {gmp.gmp_info[1]}
-  Size of a limb:      {gmp.gmp_info[2]}
+  Size of a limb:      {gmp.gmp_info[1]}
 """)

tests/test_mpz.py

@@ -676,7 +676,7 @@ def test___round__interface():
 @pytest.mark.skipif(platform.python_implementation() == "PyPy",
                     reason="sys.getsizeof raises TypeError")
 def test___sizeof__():
-    limb_size = gmp_info[2]
+    limb_size = gmp_info[1]
     ms = [mpz(1<<i*(8*limb_size)) for i in range(3)]
     sz = sys.getsizeof(ms[1]) - sys.getsizeof(ms[0])
     assert sys.getsizeof(ms[2]) - sys.getsizeof(ms[1]) == sz