122 lines
2.1 KiB
Python
122 lines
2.1 KiB
Python
# test basic float capabilities
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# literals
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print(0.12)
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print(1.0)
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print(1.2)
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print(0e0)
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print(0e0)
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print(0e-0)
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# float construction
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print(float(1.2))
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print(float("1.2"))
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print(float("+1"))
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print(float("1e1"))
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print(float("1e+1"))
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print(float("1e-1"))
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print(float("inf"))
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print(float("-inf"))
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print(float("INF"))
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print(float("infinity"))
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print(float("INFINITY"))
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print(float("nan"))
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print(float("-nan"))
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print(float("NaN"))
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try:
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float("")
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except ValueError:
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print("ValueError")
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try:
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float("1e+")
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except ValueError:
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print("ValueError")
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try:
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float("1z")
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except ValueError:
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print("ValueError")
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# construct from something with the buffer protocol
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print(float(b"1.2"))
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print(float(bytearray(b"3.4")))
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# unary operators
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print(bool(0.0))
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print(bool(1.2))
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print(+(1.2))
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print(-(1.2))
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# division of integers
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x = 1 / 2
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print(x)
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# /= operator
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a = 1
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a /= 2
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print(a)
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# floor division
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print(1.0 // 2)
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print(2.0 // 2)
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# comparison
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print(1.2 <= 3.4)
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print(1.2 <= -3.4)
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print(1.2 >= 3.4)
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print(1.2 >= -3.4)
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print(0.0 == False, 1.0 == True)
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print(False == 0.0, True == 1.0)
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# comparison of nan is special
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nan = float("nan")
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print(nan == 1.2)
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print(nan == nan)
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try:
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1.0 / 0
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except ZeroDivisionError:
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print("ZeroDivisionError")
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try:
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1.0 // 0
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except ZeroDivisionError:
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print("ZeroDivisionError")
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try:
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1.2 % 0
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except ZeroDivisionError:
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print("ZeroDivisionError")
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try:
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0.0**-1
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except ZeroDivisionError:
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print("ZeroDivisionError")
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# unsupported unary ops
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try:
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~1.2
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except TypeError:
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print("TypeError")
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try:
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1.2 in 3.4
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except TypeError:
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print("TypeError")
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# small int on LHS, float on RHS, unsupported op
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try:
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print(1 | 1.0)
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except TypeError:
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print("TypeError")
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# can't convert list to float
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try:
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float([])
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except TypeError:
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print("TypeError")
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# test constant float with more than 255 chars
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x = 1.84728699436059052516398251149631771898472869943605905251639825114963177189847286994360590525163982511496317718984728699436059052516398251149631771898472869943605905251639825114963177189847286994360590525163982511496317718984728699436059052516398251149631771898472869943605905251639825114963177189
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print("%.5f" % x)
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