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