Remove round, it's in the stdlib

Author: gabrieldemarmiesse

stdlib_extensions/builtins/__init__.mojo

@@ -3,7 +3,7 @@ from ._bytes import bytes, to_bytes
 from ..syscalls.filesystem import read_from_stdin
 from ._hash import custom_hash
 from ._types import Optional
-from ._math import divmod, round
+from ._math import divmod
 from ._custom_equality import ___eq__
 
 

stdlib_extensions/builtins/_math.mojo

@@ -4,18 +4,3 @@ fn divmod(a: Int, b: Int) -> Tuple[Int, Int]:
 
 fn divmod(a: Int64, b: Int64) -> Tuple[Int64, Int64]:
     return a // b, a % b
-
-
-fn round(number: Float64) -> Int:
-    var floor = number // 1
-    var remainder = number - floor
-    if remainder > 0.5:
-        return int(floor + 1)
-    elif remainder < 0.5:
-        return int(floor)
-    else:
-        # rounding to the nearest even number
-        if floor % 2 == 0:
-            return int(floor)
-        else:
-            return int(floor + 1)

stdlib_extensions/datetime/_timedelta.mojo

@@ -1,9 +1,9 @@
-from ..builtins import divmod, round, list
+from ..builtins import divmod, list
 from ..builtins.string import rjust, join
 from ..builtins._generic_list import _cmp_list
 from ..builtins import custom_hash
 from utils.variant import Variant
-from math import abs
+from math import abs, round
 
 # TODO: use this in the timedelta constructor
 alias IntOrFloat = Variant[Int, Float64]
@@ -131,7 +131,7 @@ struct timedelta(CollectionElement, Stringable, Hashable):
         days, seconds = divmod(seconds, 24 * 3600)
         d += days
         s += seconds
-        microseconds = round(microseconds + usdouble)
+        microseconds = round(Float64(microseconds) + usdouble).to_int()
         # TODO: Manage floats
         # assert isinstance(s, int)
         # assert isinstance(microseconds, int)

stdlib_extensions/datetime/_utils.mojo

@@ -7,7 +7,7 @@ This file is taken from https://github.com/python/cpython/blob/main/Lib/_pydatet
 It's just been converted to Mojo manually.
 """
 
-from ..builtins import list, divmod, round, abs
+from ..builtins import list, divmod
 from ..builtins.string import join
 from ..time import struct_time
 import math as _math

stdlib_extensions/stdlib_tests/builtins/test_math.mojo

@@ -1,5 +1,5 @@
 from ...stdlib_tests.utils import assert_true, assert_false, assert_equal
-from ...builtins import divmod, round
+from ...builtins import divmod
 
 
 def test_divmod():
@@ -14,16 +14,5 @@ def test_divmod():
     assert_equal(b, -1)
 
 
-def test_round():
-    assert_equal(round(-2.0), -2)
-    assert_equal(round(-1.5), -2)
-    assert_equal(round(-1.0), -1)
-    assert_equal(round(-0.5), 0)
-    assert_equal(round(0.0), 0)
-    assert_equal(round(0.5), 0)
-    assert_equal(round(1.0), 1)
-
-
 def run_tests():
     test_divmod()
-    test_round()