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micropython/tests/float/float2int_intbig.py

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py: Temporary fix for conversion of float to int when fits in small int. Addresses issue #1044 (see also #1040). Could do with a better fix.
10 years ago
# check cases converting float to int, relying only on single precision float
py: Partially fix float to int conversion. This fixes conversion when float type has more mantissa bits than small int, and float value has small exponent. This is for example the case of 32-bit platform using doubles, and converting value of time.time(). Conversion of floats with larg exponnet is still not handled correctly.
10 years ago
modstruct: Rename module to "ustruct", to allow full Python-level impl.
10 years ago
try:
import ustruct as struct
all: Rename "sys" module to "usys". This is consistent with the other 'micro' modules and allows implementing additional features in Python via e.g. micropython-lib's sys. Note this is a breaking change (not backwards compatible) for ports which do not enable weak links, as "import sys" must now be replaced with "import usys".
4 years ago
import usys as sys
modstruct: Rename module to "ustruct", to allow full Python-level impl.
10 years ago
except:
import struct
all: Rename "sys" module to "usys". This is consistent with the other 'micro' modules and allows implementing additional features in Python via e.g. micropython-lib's sys. Note this is a breaking change (not backwards compatible) for ports which do not enable weak links, as "import sys" must now be replaced with "import usys".
4 years ago
import sys
float/float2int*: Make actually be parsable for MICROPY_LONGINT_IMPL_NONE. The use of large literal numbers is a big no-no when it comes to writing programs which work with different int representations. Also, some checks are pretty adhoc (e.g using struct module to check for 64-bitness). This change bases entire detection on sys.maxsize and integer operarions, and thus more correct, even if longer. Note that this change doesn't mean that any of these tests can pass with anything but MPZ - even despite checking for various int representations, the tests aren't written to be portable among them.
8 years ago
maxsize_bits = 0
maxsize = sys.maxsize
while maxsize:
maxsize >>= 1
maxsize_bits += 1
tests: Update float2int tests for new range classifications - Tests vary based on build configuration (32/64-bit and internal int type). - Added tests for exceptions raised on overflow of int type.
10 years ago
# work out configuration values
float/float2int*: Make actually be parsable for MICROPY_LONGINT_IMPL_NONE. The use of large literal numbers is a big no-no when it comes to writing programs which work with different int representations. Also, some checks are pretty adhoc (e.g using struct module to check for 64-bitness). This change bases entire detection on sys.maxsize and integer operarions, and thus more correct, even if longer. Note that this change doesn't mean that any of these tests can pass with anything but MPZ - even despite checking for various int representations, the tests aren't written to be portable among them.
8 years ago
is_64bit = maxsize_bits > 32
tests: Update float2int tests for new range classifications - Tests vary based on build configuration (32/64-bit and internal int type). - Added tests for exceptions raised on overflow of int type.
10 years ago
# 0 = none, 1 = long long, 2 = mpz
float/float2int*: Make actually be parsable for MICROPY_LONGINT_IMPL_NONE. The use of large literal numbers is a big no-no when it comes to writing programs which work with different int representations. Also, some checks are pretty adhoc (e.g using struct module to check for 64-bitness). This change bases entire detection on sys.maxsize and integer operarions, and thus more correct, even if longer. Note that this change doesn't mean that any of these tests can pass with anything but MPZ - even despite checking for various int representations, the tests aren't written to be portable among them.
8 years ago
ll_type = None
if is_64bit:
if maxsize_bits < 63:
ll_type = 0
else:
if maxsize_bits < 31:
ll_type = 0
if ll_type is None:
one = 1
if one << 65 < one << 62:
tests: Update float2int tests for new range classifications - Tests vary based on build configuration (32/64-bit and internal int type). - Added tests for exceptions raised on overflow of int type.
10 years ago
ll_type = 1
float/float2int*: Make actually be parsable for MICROPY_LONGINT_IMPL_NONE. The use of large literal numbers is a big no-no when it comes to writing programs which work with different int representations. Also, some checks are pretty adhoc (e.g using struct module to check for 64-bitness). This change bases entire detection on sys.maxsize and integer operarions, and thus more correct, even if longer. Note that this change doesn&#39;t mean that any of these tests can pass with anything but MPZ - even despite checking for various int representations, the tests aren&#39;t written to be portable among them.
8 years ago
else:
ll_type = 2
tests: Update float2int tests for new range classifications - Tests vary based on build configuration (32/64-bit and internal int type). - Added tests for exceptions raised on overflow of int type.
10 years ago
# basic conversion
tests: Format all Python code with black, except tests in basics subdir. This adds the Python files in the tests/ directory to be formatted with ./tools/codeformat.py. The basics/ subdirectory is excluded for now so we aren&#39;t changing too much at once. In a few places `# fmt: off`/`# fmt: on` was used where the code had special formatting for readability or where the test was actually testing the specific formatting.
5 years ago
# fmt: off
py: Temporary fix for conversion of float to int when fits in small int. Addresses issue #1044 (see also #1040). Could do with a better fix.
10 years ago
print(int(14187745.))
print("%d" % 14187745.)
tests: Format all Python code with black, except tests in basics subdir. This adds the Python files in the tests/ directory to be formatted with ./tools/codeformat.py. The basics/ subdirectory is excluded for now so we aren&#39;t changing too much at once. In a few places `# fmt: off`/`# fmt: on` was used where the code had special formatting for readability or where the test was actually testing the specific formatting.
5 years ago
# fmt: on
tests: Update float2int tests for new range classifications - Tests vary based on build configuration (32/64-bit and internal int type). - Added tests for exceptions raised on overflow of int type.
10 years ago
if ll_type == 2:
tests: Format all Python code with black, except tests in basics subdir. This adds the Python files in the tests/ directory to be formatted with ./tools/codeformat.py. The basics/ subdirectory is excluded for now so we aren&#39;t changing too much at once. In a few places `# fmt: off`/`# fmt: on` was used where the code had special formatting for readability or where the test was actually testing the specific formatting.
5 years ago
print(int(2.0 ** 100))
print("%d" % 2.0 ** 100)
py: Fix float to int conversion for large exponents.
10 years ago
testpass = True
tests: Format all Python code with black, except tests in basics subdir. This adds the Python files in the tests/ directory to be formatted with ./tools/codeformat.py. The basics/ subdirectory is excluded for now so we aren&#39;t changing too much at once. In a few places `# fmt: off`/`# fmt: on` was used where the code had special formatting for readability or where the test was actually testing the specific formatting.
5 years ago
p2_rng = ((30, 63, 127), (62, 63, 127))[is_64bit][ll_type]
for i in range(0, p2_rng):
bitcnt = len(bin(int(2.0 ** i))) - 3
py: Fix float to int conversion for large exponents.
10 years ago
if i != bitcnt:
tests: Format all Python code with black, except tests in basics subdir. This adds the Python files in the tests/ directory to be formatted with ./tools/codeformat.py. The basics/ subdirectory is excluded for now so we aren&#39;t changing too much at once. In a few places `# fmt: off`/`# fmt: on` was used where the code had special formatting for readability or where the test was actually testing the specific formatting.
5 years ago
print("fail: 2.**%u was %u bits long" % (i, bitcnt))
py: Fix float to int conversion for large exponents.
10 years ago
testpass = False
tests: Format all Python code with black, except tests in basics subdir. This adds the Python files in the tests/ directory to be formatted with ./tools/codeformat.py. The basics/ subdirectory is excluded for now so we aren&#39;t changing too much at once. In a few places `# fmt: off`/`# fmt: on` was used where the code had special formatting for readability or where the test was actually testing the specific formatting.
5 years ago
print("power of 2 test: %s" % (testpass and "passed" or "failed"))
py: Fix float to int conversion for large exponents.
10 years ago
py: Temporary fix for conversion of float to int when fits in small int. Addresses issue #1044 (see also #1040). Could do with a better fix.
10 years ago
# TODO why does 10**12 fail this test for single precision float?
py: Fix float to int conversion for large exponents.
10 years ago
testpass = True
tests: Update float2int tests for new range classifications - Tests vary based on build configuration (32/64-bit and internal int type). - Added tests for exceptions raised on overflow of int type.
10 years ago
p10_rng = 9 if (ll_type == 0 and ~is_64bit) else 11
tests: Format all Python code with black, except tests in basics subdir. This adds the Python files in the tests/ directory to be formatted with ./tools/codeformat.py. The basics/ subdirectory is excluded for now so we aren&#39;t changing too much at once. In a few places `# fmt: off`/`# fmt: on` was used where the code had special formatting for readability or where the test was actually testing the specific formatting.
5 years ago
for i in range(0, p10_rng):
digcnt = len(str(int(10.0 ** i))) - 1
py: Fix float to int conversion for large exponents.
10 years ago
if i != digcnt:
tests: Format all Python code with black, except tests in basics subdir. This adds the Python files in the tests/ directory to be formatted with ./tools/codeformat.py. The basics/ subdirectory is excluded for now so we aren&#39;t changing too much at once. In a few places `# fmt: off`/`# fmt: on` was used where the code had special formatting for readability or where the test was actually testing the specific formatting.
5 years ago
print("fail: 10.**%u was %u digits long" % (i, digcnt))
py: Fix float to int conversion for large exponents.
10 years ago
testpass = False
tests: Format all Python code with black, except tests in basics subdir. This adds the Python files in the tests/ directory to be formatted with ./tools/codeformat.py. The basics/ subdirectory is excluded for now so we aren&#39;t changing too much at once. In a few places `# fmt: off`/`# fmt: on` was used where the code had special formatting for readability or where the test was actually testing the specific formatting.
5 years ago
print("power of 10 test: %s" % (testpass and "passed" or "failed"))
py: Raise exception if trying to convert inf/nan to int.
10 years ago
tests: Update float2int tests for new range classifications - Tests vary based on build configuration (32/64-bit and internal int type). - Added tests for exceptions raised on overflow of int type.
10 years ago
def fp2int_test(num, name, should_fail):
try:
x = int(num)
passed = ~should_fail
except:
passed = should_fail
tests: Format all Python code with black, except tests in basics subdir. This adds the Python files in the tests/ directory to be formatted with ./tools/codeformat.py. The basics/ subdirectory is excluded for now so we aren&#39;t changing too much at once. In a few places `# fmt: off`/`# fmt: on` was used where the code had special formatting for readability or where the test was actually testing the specific formatting.
5 years ago
print("%s: %s" % (name, passed and "passed" or "failed"))
py: Raise exception if trying to convert inf/nan to int.
10 years ago
tests: Update float2int tests for new range classifications - Tests vary based on build configuration (32/64-bit and internal int type). - Added tests for exceptions raised on overflow of int type.
10 years ago
if ll_type != 2:
if ll_type == 0:
if is_64bit:
tests: Format all Python code with black, except tests in basics subdir. This adds the Python files in the tests/ directory to be formatted with ./tools/codeformat.py. The basics/ subdirectory is excluded for now so we aren&#39;t changing too much at once. In a few places `# fmt: off`/`# fmt: on` was used where the code had special formatting for readability or where the test was actually testing the specific formatting.
5 years ago
neg_bad_fp = -1.00000005 * 2.0 ** 62.0
pos_bad_fp = 2.0 ** 62.0
neg_good_fp = -(2.0 ** 62.0)
pos_good_fp = 0.99999993 * 2.0 ** 62.0
tests: Update float2int tests for new range classifications - Tests vary based on build configuration (32/64-bit and internal int type). - Added tests for exceptions raised on overflow of int type.
10 years ago
else:
tests: Format all Python code with black, except tests in basics subdir. This adds the Python files in the tests/ directory to be formatted with ./tools/codeformat.py. The basics/ subdirectory is excluded for now so we aren&#39;t changing too much at once. In a few places `# fmt: off`/`# fmt: on` was used where the code had special formatting for readability or where the test was actually testing the specific formatting.
5 years ago
neg_bad_fp = -1.00000005 * 2.0 ** 30.0
pos_bad_fp = 2.0 ** 30.0
neg_good_fp = -(2.0 ** 30.0)
pos_good_fp = 0.9999999499 * 2.0 ** 30.0
tests: Update float2int tests for new range classifications - Tests vary based on build configuration (32/64-bit and internal int type). - Added tests for exceptions raised on overflow of int type.
10 years ago
else:
tests: Format all Python code with black, except tests in basics subdir. This adds the Python files in the tests/ directory to be formatted with ./tools/codeformat.py. The basics/ subdirectory is excluded for now so we aren&#39;t changing too much at once. In a few places `# fmt: off`/`# fmt: on` was used where the code had special formatting for readability or where the test was actually testing the specific formatting.
5 years ago
neg_bad_fp = -0.51 * 2.0 ** 64.0
pos_bad_fp = 2.0 ** 63.0
neg_good_fp = -(2.0 ** 63.0)
pos_good_fp = 1.9999998 * 2.0 ** 62.0
tests: Update float2int tests for new range classifications - Tests vary based on build configuration (32/64-bit and internal int type). - Added tests for exceptions raised on overflow of int type.
10 years ago
tests: Format all Python code with black, except tests in basics subdir. This adds the Python files in the tests/ directory to be formatted with ./tools/codeformat.py. The basics/ subdirectory is excluded for now so we aren&#39;t changing too much at once. In a few places `# fmt: off`/`# fmt: on` was used where the code had special formatting for readability or where the test was actually testing the specific formatting.
5 years ago
fp2int_test(neg_bad_fp, "neg bad", True)
fp2int_test(pos_bad_fp, "pos bad", True)
fp2int_test(neg_good_fp, "neg good", False)
fp2int_test(pos_good_fp, "pos good", False)
tests: Update float2int tests for new range classifications - Tests vary based on build configuration (32/64-bit and internal int type). - Added tests for exceptions raised on overflow of int type.
10 years ago
else:
tests: Format all Python code with black, except tests in basics subdir. This adds the Python files in the tests/ directory to be formatted with ./tools/codeformat.py. The basics/ subdirectory is excluded for now so we aren&#39;t changing too much at once. In a few places `# fmt: off`/`# fmt: on` was used where the code had special formatting for readability or where the test was actually testing the specific formatting.
5 years ago
fp2int_test(-1.999999879 * 2.0 ** 127.0, "large neg", False)
fp2int_test(1.999999879 * 2.0 ** 127.0, "large pos", False)
tests: Update float2int tests for new range classifications - Tests vary based on build configuration (32/64-bit and internal int type). - Added tests for exceptions raised on overflow of int type.
10 years ago
tests: Format all Python code with black, except tests in basics subdir. This adds the Python files in the tests/ directory to be formatted with ./tools/codeformat.py. The basics/ subdirectory is excluded for now so we aren&#39;t changing too much at once. In a few places `# fmt: off`/`# fmt: on` was used where the code had special formatting for readability or where the test was actually testing the specific formatting.
5 years ago
fp2int_test(float("inf"), "inf test", True)
fp2int_test(float("nan"), "NaN test", True)
py: Temporary fix for conversion of float to int when fits in small int. Addresses issue #1044 (see also #1040). Could do with a better fix.
10 years ago
# test numbers < 1 (this used to fail; see issue #1044)
tests: Format all Python code with black, except tests in basics subdir. This adds the Python files in the tests/ directory to be formatted with ./tools/codeformat.py. The basics/ subdirectory is excluded for now so we aren&#39;t changing too much at once. In a few places `# fmt: off`/`# fmt: on` was used where the code had special formatting for readability or where the test was actually testing the specific formatting.
5 years ago
fp2int_test(0.0001, "small num", False)
struct.pack("I", int(1 / 2))