djsundog/circuitpython
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
7ff0036a26
circuitpython/tests/float/float2int_fp30_intbig.py

102 lines
2.7 KiB
Python
Raw Normal View History

test/float2int_fp30: Variant of float2int for 30-bit stuffed float.
2016-02-13 09:59:50 -05:00
# check cases converting float to int, relying only on single precision float
try:
import ustruct as struct
except:
import struct
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.
2017-03-06 10:23:09 -05:00
import sys
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'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.
2020-03-22 22:26:08 -04:00
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.
2017-03-06 10:23:09 -05:00
maxsize_bits = 0
maxsize = sys.maxsize
while maxsize:
maxsize >>= 1
maxsize_bits += 1
test/float2int_fp30: Variant of float2int for 30-bit stuffed float.
2016-02-13 09:59:50 -05:00
# 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.
2017-03-06 10:23:09 -05:00
is_64bit = maxsize_bits > 32
test/float2int_fp30: Variant of float2int for 30-bit stuffed float.
2016-02-13 09:59:50 -05:00
# 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.
2017-03-06 10:23:09 -05:00
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:
test/float2int_fp30: Variant of float2int for 30-bit stuffed float.
2016-02-13 09:59:50 -05:00
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'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.
2017-03-06 10:23:09 -05:00
else:
ll_type = 2
test/float2int_fp30: Variant of float2int for 30-bit stuffed float.
2016-02-13 09:59:50 -05:00
# 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'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.
2020-03-22 22:26:08 -04:00
print(int(14187744.0))
print("%d" % 14187744.0)
test/float2int_fp30: Variant of float2int for 30-bit stuffed float.
2016-02-13 09:59:50 -05:00
if ll_type == 2:
update to py tests and scripts due to black 22.1.0
2022-01-29 17:14:01 -05:00
print(int(2.0**100))
print("%d" % 2.0**100)
test/float2int_fp30: Variant of float2int for 30-bit stuffed float.
2016-02-13 09:59:50 -05:00
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'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.
2020-03-22 22:26:08 -04:00
p2_rng = ((30, 63, 127), (62, 63, 127))[is_64bit][ll_type]
for i in range(0, p2_rng):
update to py tests and scripts due to black 22.1.0
2022-01-29 17:14:01 -05:00
bitcnt = len(bin(int(2.0**i))) - 3
test/float2int_fp30: Variant of float2int for 30-bit stuffed float.
2016-02-13 09:59:50 -05:00
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'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.
2020-03-22 22:26:08 -04:00
print("fail: 2.**%u was %u bits long" % (i, bitcnt))
test/float2int_fp30: Variant of float2int for 30-bit stuffed float.
2016-02-13 09:59:50 -05:00
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'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.
2020-03-22 22:26:08 -04:00
print("power of 2 test: %s" % (testpass and "passed" or "failed"))
test/float2int_fp30: Variant of float2int for 30-bit stuffed float.
2016-02-13 09:59:50 -05:00
# TODO why does 10**12 fail this test for single precision float?
testpass = True
p10_rng = 9
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'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.
2020-03-22 22:26:08 -04:00
for i in range(0, p10_rng):
update to py tests and scripts due to black 22.1.0
2022-01-29 17:14:01 -05:00
digcnt = len(str(int(10.0**i))) - 1
test/float2int_fp30: Variant of float2int for 30-bit stuffed float.
2016-02-13 09:59:50 -05:00
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'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.
2020-03-22 22:26:08 -04:00
print("fail: 10.**%u was %u digits long" % (i, digcnt))
test/float2int_fp30: Variant of float2int for 30-bit stuffed float.
2016-02-13 09:59:50 -05:00
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'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.
2020-03-22 22:26:08 -04:00
print("power of 10 test: %s" % (testpass and "passed" or "failed"))
test/float2int_fp30: Variant of float2int for 30-bit stuffed float.
2016-02-13 09:59:50 -05:00
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'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.
2020-03-22 22:26:08 -04:00
print("%s: %s" % (name, passed and "passed" or "failed"))
test/float2int_fp30: Variant of float2int for 30-bit stuffed float.
2016-02-13 09:59:50 -05:00
if ll_type != 2:
if ll_type == 0:
if is_64bit:
update to py tests and scripts due to black 22.1.0
2022-01-29 17:14:01 -05:00
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
test/float2int_fp30: Variant of float2int for 30-bit stuffed float.
2016-02-13 09:59:50 -05:00
else:
update to py tests and scripts due to black 22.1.0
2022-01-29 17:14:01 -05:00
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
test/float2int_fp30: Variant of float2int for 30-bit stuffed float.
2016-02-13 09:59:50 -05:00
else:
update to py tests and scripts due to black 22.1.0
2022-01-29 17:14:01 -05:00
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
test/float2int_fp30: Variant of float2int for 30-bit stuffed float.
2016-02-13 09:59:50 -05:00
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'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.
2020-03-22 22:26:08 -04:00
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)
test/float2int_fp30: Variant of float2int for 30-bit stuffed float.
2016-02-13 09:59:50 -05:00
else:
update to py tests and scripts due to black 22.1.0
2022-01-29 17:14:01 -05:00
fp2int_test(-1.999999879 * 2.0**126.0, "large neg", False)
fp2int_test(1.999999879 * 2.0**126.0, "large pos", False)
test/float2int_fp30: Variant of float2int for 30-bit stuffed float.
2016-02-13 09:59:50 -05:00
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'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.
2020-03-22 22:26:08 -04:00
fp2int_test(float("inf"), "inf test", True)
py/objint: Do not use fpclassify. For combinations of certain versions of glibc and gcc the definition of fpclassify always takes float as argument instead of adapting itself to float/double/long double as required by the C99 standard. At the time of writing this happens for instance for glibc 2.27 with gcc 7.5.0 when compiled with -Os and glibc 3.0.7 with gcc 9.3.0. When calling fpclassify with double as argument, as in objint.c, this results in an implicit narrowing conversion which is not really correct plus results in a warning when compiled with -Wfloat-conversion. So fix this by spelling out the logic manually.
2020-04-06 04:44:48 -04:00
fp2int_test(float("-inf"), "inf test", 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'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.
2020-03-22 22:26:08 -04:00
fp2int_test(float("nan"), "NaN test", True)
test/float2int_fp30: Variant of float2int for 30-bit stuffed float.
2016-02-13 09:59:50 -05:00
# 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'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.
2020-03-22 22:26:08 -04:00
fp2int_test(0.0001, "small num", False)
struct.pack("I", int(1 / 2))
Reference in New Issue Copy Permalink