35 lines
1.0 KiB
Cython
35 lines
1.0 KiB
Cython
# Copyright (C) 2016-present the asyncpg authors and contributors
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# <see AUTHORS file>
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#
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# This module is part of asyncpg and is released under
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# the Apache 2.0 License: http://www.apache.org/licenses/LICENSE-2.0
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from libc cimport math
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cdef float4_encode(CodecContext settings, WriteBuffer buf, obj):
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cdef double dval = cpython.PyFloat_AsDouble(obj)
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cdef float fval = <float>dval
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if math.isinf(fval) and not math.isinf(dval):
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raise ValueError('value out of float32 range')
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buf.write_int32(4)
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buf.write_float(fval)
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cdef float4_decode(CodecContext settings, FRBuffer *buf):
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cdef float f = hton.unpack_float(frb_read(buf, 4))
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return cpython.PyFloat_FromDouble(f)
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cdef float8_encode(CodecContext settings, WriteBuffer buf, obj):
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cdef double dval = cpython.PyFloat_AsDouble(obj)
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buf.write_int32(8)
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buf.write_double(dval)
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cdef float8_decode(CodecContext settings, FRBuffer *buf):
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cdef double f = hton.unpack_double(frb_read(buf, 8))
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return cpython.PyFloat_FromDouble(f)
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