def interpret_real(s, context=None):
"""Convert a raw Real value to the float it represents.
This is more lenient than the SGF spec: it accepts strings accepted as a
float by the platform libc. It rejects infinities and NaNs.
"""
result = float(s)
if isinf(result):
raise ValueError("infinite")
if isnan(result):
raise ValueError("not a number")
return result
def interpret_real(s, context=None):
"""Convert a raw Real value to the float it represents.
This is more lenient than the SGF spec: it accepts strings accepted as a
float by the platform libc. It rejects infinities and NaNs.
"""
result = float(s)
if isinf(result):
raise ValueError("infinite")
if isnan(result):
raise ValueError("not a number")
return result
def interpret_float(arg):
"""Interpret a string representing a float, as specified by GTP.
Returns a Python float.
Raises GtpError with an appropriate message if 'arg' isn't a valid GTP
float specification.
Accepts strings accepted as a float by the platform libc; rejects
infinities and NaNs.
"""
try:
result = float(arg)
if isinf(result) or isnan(result):
raise ValueError
except ValueError:
raise GtpError("invalid float: '%s'" % arg)
return result
def interpret_float(arg):
"""Interpret a string representing a float, as specified by GTP.
Returns a Python float.
Raises GtpError with an appropriate message if 'arg' isn't a valid GTP
float specification.
Accepts strings accepted as a float by the platform libc; rejects
infinities and NaNs.
"""
try:
result = float(arg)
if isinf(result) or isnan(result):
raise ValueError
except ValueError:
raise GtpError("invalid float: '%s'" % arg)
return result
def test_nan(tc):
tc.assertIs(utils.isnan(0), False)
tc.assertIs(utils.isnan(0.0), False)
tc.assertIs(utils.isnan(1e300), False)
tc.assertIs(utils.isnan(1e400), False)
tc.assertIs(utils.isnan(-1e300), False)
tc.assertIs(utils.isnan(-1e400), False)
tc.assertIs(utils.isnan(1e-300), False)
tc.assertIs(utils.isnan(1e-400), False)
tc.assertIs(utils.isnan(float("inf")), False)
tc.assertIs(utils.isnan(float("-inf")), False)
tc.assertIs(utils.isnan(float("NaN")), True)
def test_nan(tc):
tc.assertIs(utils.isnan(0), False)
tc.assertIs(utils.isnan(0.0), False)
tc.assertIs(utils.isnan(1e300), False)
tc.assertIs(utils.isnan(1e400), False)
tc.assertIs(utils.isnan(-1e300), False)
tc.assertIs(utils.isnan(-1e400), False)
tc.assertIs(utils.isnan(1e-300), False)
tc.assertIs(utils.isnan(1e-400), False)
tc.assertIs(utils.isnan(float("inf")), False)
tc.assertIs(utils.isnan(float("-inf")), False)
tc.assertIs(utils.isnan(float("NaN")), True)
