16 lines
540 B
Python
16 lines
540 B
Python
# Test formatting of very large ints.
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# Relies on double-precision floats.
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import array
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import sys
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# Challenging way to express 1e200 and 1e100.
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print("{:.12e}".format(float("9" * 400 + "e-200")))
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print("{:.12e}".format(float("9" * 400 + "e-300")))
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# These correspond to the binary representation of 1e200 in float64s:
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v1 = 0x54B249AD2594C37D # 1e100
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v2 = 0x6974E718D7D7625A # 1e200
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print("{:.12e}".format(array.array("d", v1.to_bytes(8, sys.byteorder))[0]))
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print("{:.12e}".format(array.array("d", v2.to_bytes(8, sys.byteorder))[0]))
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