1# Python bindings for Yasm: Pyrex input file for floatnum.h
2#
3#  Copyright (C) 2006  Michael Urman, Peter Johnson
4#
5# Redistribution and use in source and binary forms, with or without
6# modification, are permitted provided that the following conditions
7# are met:
8# 1. Redistributions of source code must retain the above copyright
9#    notice, this list of conditions and the following disclaimer.
10# 2. Redistributions in binary form must reproduce the above copyright
11#    notice, this list of conditions and the following disclaimer in the
12#    documentation and/or other materials provided with the distribution.
13#
14# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND OTHER CONTRIBUTORS ``AS IS''
15# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR OTHER CONTRIBUTORS BE
18# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
19# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
20# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
21# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
22# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
23# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
24# POSSIBILITY OF SUCH DAMAGE.
25
26cdef class FloatNum:
27    cdef yasm_floatnum *flt
28    def __cinit__(self, value):
29        self.flt = NULL
30        if isinstance(value, FloatNum):
31            self.flt = yasm_floatnum_copy((<FloatNum>value).flt)
32            return
33        if PyCObject_Check(value):  # should check Desc
34            self.flt = <yasm_floatnum *>PyCObject_AsVoidPtr(value)
35            return
36
37        if isinstance(value, float): string = str(float)
38        else: string = value
39        self.flt = yasm_floatnum_create(string)
40
41    def __dealloc__(self):
42        if self.flt != NULL: yasm_floatnum_destroy(self.flt)
43
44    def __neg__(self):
45        result = FloatNum(self)
46        yasm_floatnum_calc((<FloatNum>result).flt, YASM_EXPR_NEG, NULL)
47        return result
48    def __pos__(self): return self
49
50