예제 #1
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 def float_to_w_int(space, floatvalue):
     try:
         # the extra case makes sure that this method returns
         # bignums for the same numbers as the parser does.
         # this is checked in rubyspecs
         if floatvalue < 0:
             return space.newint(-ovfcheck_float_to_int(-floatvalue))
         else:
             return space.newint(ovfcheck_float_to_int(floatvalue))
     except OverflowError:
         return space.newbigint_fromfloat(floatvalue)
예제 #2
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 def float_to_w_int(space, floatvalue):
     try:
         # the extra case makes sure that this method returns
         # bignums for the same numbers as the parser does.
         # this is checked in rubyspecs
         if floatvalue < 0:
             return space.newint(-ovfcheck_float_to_int(-floatvalue))
         else:
             return space.newint(ovfcheck_float_to_int(floatvalue))
     except OverflowError:
         return space.newbigint_fromfloat(floatvalue)
예제 #3
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 def descr_trunc(self, space):
     try:
         value = ovfcheck_float_to_int(self.floatval)
     except OverflowError:
         return self.descr_long(space)
     else:
         return space.newint(value)
예제 #4
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 def descr_trunc(self, space):
     try:
         value = ovfcheck_float_to_int(self.floatval)
     except OverflowError:
         return self.descr_long(space)
     else:
         return space.newint(value)
예제 #5
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 def arith_pow_same(self, other):
     assert isinstance(other, values.W_Fixnum)
     # XXX nonsense
     try:
         res = rarithmetic.ovfcheck_float_to_int(math.pow(self.value, other.value))
     except OverflowError:
         return self.arith_pow(values.W_Bignum(rbigint.fromint(other.value)))
     return values.W_Fixnum(res)
예제 #6
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 def descr_trunc(self, space):
     whole = math.modf(self.floatval)[1]
     try:
         value = ovfcheck_float_to_int(whole)
     except OverflowError:
         return self.descr_long(space)
     else:
         return space.newint(value)
예제 #7
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 def arith_pow_same(self, other):
     assert isinstance(other, values.W_Fixnum)
     # XXX nonsense
     try:
         res = rarithmetic.ovfcheck_float_to_int(math.pow(self.value, other.value))
     except OverflowError:
         return self.arith_pow(values.W_Bignum(rbigint.fromint(other.value)))
     return values.W_Fixnum(res)
예제 #8
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def newint_from_float(space, floatval):
    """This is also used from module/math/interp_math.py"""
    try:
        value = ovfcheck_float_to_int(floatval)
    except OverflowError:
        return newlong_from_float(space, floatval)
    else:
        return space.newint(value)
예제 #9
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def trunc__Float(space, w_floatobj):
    whole = math.modf(w_floatobj.floatval)[1]
    try:
        value = ovfcheck_float_to_int(whole)
    except OverflowError:
        return long__Float(space, w_floatobj)
    else:
        return space.newint(value)
예제 #10
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 def int(self, space):
     if (type(self) is not W_FloatObject and
         space.is_overloaded(self, space.w_float, '__int__')):
         return W_Root.int(self, space)
     try:
         value = ovfcheck_float_to_int(self.floatval)
     except OverflowError:
         return space.long(self)
     else:
         return space.newint(value)
예제 #11
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    def visit_DECIMALLITERAL(self, node):
        try:

            f = float(node.additional_info)
            i = ovfcheck_float_to_int(f)
            if i != f:
                return operations.ConstantFloat(f)
            else:
                return operations.ConstantInt(i)
        except (ValueError, OverflowError):
            return operations.ConstantFloat(float(node.additional_info))
예제 #12
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    def visit_DECIMALLITERAL(self, node):
        pos = self.get_pos(node)
        try:

            f = float(node.additional_info)
            i = ovfcheck_float_to_int(f)
            if i != f:
                return operations.FloatNumber(pos, f)
            else:
                return operations.IntNumber(pos, i)
        except (ValueError, OverflowError):
            return operations.FloatNumber(pos, float(node.additional_info))
예제 #13
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    def visit_DECIMALLITERAL(self, node):
        pos = self.get_pos(node)
        try:

            f = float(node.additional_info)
            i = ovfcheck_float_to_int(f)
            if i != f:
                return operations.FloatNumber(pos, f)
            else:
                return operations.IntNumber(pos, i)
        except (ValueError, OverflowError):
            return operations.FloatNumber(pos, float(node.additional_info))
예제 #14
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 def visit_numericliteral(self, node):
     number = ""
     for node in node.children:
         number += node.additional_info
     try:
         f = float(number)
         i = ovfcheck_float_to_int(f)
         if i != f:
             return operations.ConstantFloat(f)
         else:
             return operations.ConstantInt(i)
     except (ValueError, OverflowError):
         return operations.ConstantFloat(float(node.additional_info))
예제 #15
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    def arith_round(self):
        fval = self.floatval
        if fval >= 0:
            factor = 1
        else:
            factor = -1

        fval = fval * factor
        try:
            val = ovfcheck_float_to_int(math.floor(fval + 0.5) * factor)
        except OverflowError:
            return term.BigInt(rbigint.fromfloat(math.floor(self.floatval + 0.5) * factor))
        return term.Number(val)
def enable(space, fileno, period=0.01):  # default 100 Hz
    from pypy.module._vmprof import Module
    mod_vmprof = space.getbuiltinmodule('_vmprof')
    assert isinstance(mod_vmprof, Module)
    #
    try:
        period_usec = ovfcheck_float_to_int(period * 1000000.0 + 0.5)
        if period_usec <= 0 or period_usec >= 1e6:
            # we don't want seconds here at all
            raise ValueError
    except (ValueError, OverflowError):
        raise OperationError(space.w_ValueError,
                             space.wrap("'period' too large or non positive"))
    #
    mod_vmprof.vmprof.enable(space, fileno, period_usec)
예제 #17
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def enable(space, fileno, period=0.01):   # default 100 Hz
    from pypy.module._vmprof import Module
    mod_vmprof = space.getbuiltinmodule('_vmprof')
    assert isinstance(mod_vmprof, Module)
    #
    try:
        period_usec = ovfcheck_float_to_int(period * 1000000.0 + 0.5)
        if period_usec <= 0 or period_usec >= 1e6:
            # we don't want seconds here at all
            raise ValueError
    except (ValueError, OverflowError):
        raise OperationError(space.w_ValueError,
                             space.wrap("'period' too large or non positive"))
    #
    mod_vmprof.vmprof.enable(space, fileno, period_usec)
예제 #18
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def _hash_float(space, v):
    if math.isnan(v):
        return 0

    # This is designed so that Python numbers of different types
    # that compare equal hash to the same value; otherwise comparisons
    # of mapping keys will turn out weird.
    fractpart, intpart = math.modf(v)

    if fractpart == 0.0:
        # This must return the same hash as an equal int or long.
        try:
            x = ovfcheck_float_to_int(intpart)
        except OverflowError:
            # Convert to long and use its hash.
            try:
                w_lval = W_LongObject.fromfloat(space, v)
            except (OverflowError, ValueError):
                # can't convert to long int -- arbitrary
                if v < 0:
                    return -271828
                else:
                    return 314159
            return space.int_w(space.hash(w_lval))
        else:
            # Fits in a C long == a Python int.
            from pypy.objspace.std.intobject import _hash_int
            return _hash_int(x)

    # The fractional part is non-zero, so we don't have to worry about
    # making this match the hash of some other type.
    # Use frexp to get at the bits in the double.
    # Since the VAX D double format has 56 mantissa bits, which is the
    # most of any double format in use, each of these parts may have as
    # many as (but no more than) 56 significant bits.
    # So, assuming sizeof(long) >= 4, each part can be broken into two
    # longs; frexp and multiplication are used to do that.
    # Also, since the Cray double format has 15 exponent bits, which is
    # the most of any double format in use, shifting the exponent field
    # left by 15 won't overflow a long (again assuming sizeof(long) >= 4).

    v, expo = math.frexp(v)
    v *= 2147483648.0  # 2**31
    hipart = int(v)  # take the top 32 bits
    v = (v - hipart) * 2147483648.0  # get the next 32 bits
    x = intmask(hipart + int(v) + (expo << 15))
    x -= (x == -1)
    return x
예제 #19
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파일: interp_time.py 프로젝트: charred/pypy
def _get_inttime(space, w_seconds):
    # w_seconds can be a wrapped None (it will be automatically wrapped
    # in the callers, so we never get a real None here).
    if space.is_none(w_seconds):
        seconds = pytime.time()
    else:
        seconds = space.float_w(w_seconds)
    try:
        seconds = ovfcheck_float_to_int(seconds)
        t = rffi.r_time_t(seconds)
        if rffi.cast(lltype.Signed, t) != seconds:
            raise OverflowError
    except OverflowError:
        raise OperationError(space.w_ValueError,
                             space.wrap("time argument too large"))
    return t
예제 #20
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 def visit_numericliteral(self, node):
     number = ""
     for node in node.children:
         number += node.additional_info
     try:
         f = float(number)
         i = ovfcheck_float_to_int(f)
         if i != f:
             index = self.declare_constant_float(f)
             return operations.ConstantFloat(f, index)
         else:
             index = self.declare_constant_int(i)
             return operations.ConstantInt(i, index)
     except (ValueError, OverflowError):
         f = float(node.additional_info)
         index = self.declare_constant_float(f)
         return operations.ConstantFloat(f, index)
예제 #21
0
파일: floatobject.py 프로젝트: pypyjs/pypy
def _hash_float(space, v):
    if isnan(v):
        return 0

    # This is designed so that Python numbers of different types
    # that compare equal hash to the same value; otherwise comparisons
    # of mapping keys will turn out weird.
    fractpart, intpart = math.modf(v)

    if fractpart == 0.0:
        # This must return the same hash as an equal int or long.
        try:
            x = ovfcheck_float_to_int(intpart)
            # Fits in a C long == a Python int, so is its own hash.
            return x
        except OverflowError:
            # Convert to long and use its hash.
            try:
                w_lval = W_LongObject.fromfloat(space, v)
            except (OverflowError, ValueError):
                # can't convert to long int -- arbitrary
                if v < 0:
                    return -271828
                else:
                    return 314159
            return space.int_w(space.hash(w_lval))

    # The fractional part is non-zero, so we don't have to worry about
    # making this match the hash of some other type.
    # Use frexp to get at the bits in the double.
    # Since the VAX D double format has 56 mantissa bits, which is the
    # most of any double format in use, each of these parts may have as
    # many as (but no more than) 56 significant bits.
    # So, assuming sizeof(long) >= 4, each part can be broken into two
    # longs; frexp and multiplication are used to do that.
    # Also, since the Cray double format has 15 exponent bits, which is
    # the most of any double format in use, shifting the exponent field
    # left by 15 won't overflow a long (again assuming sizeof(long) >= 4).

    v, expo = math.frexp(v)
    v *= 2147483648.0  # 2**31
    hipart = int(v)    # take the top 32 bits
    v = (v - hipart) * 2147483648.0 # get the next 32 bits
    x = intmask(hipart + int(v) + (expo << 15))
    return x
예제 #22
0
 def arith_float_fractional_part(self):
     try:
         val = rarithmetic.ovfcheck_float_to_int(self.value)
     except OverflowError:
         val = rbigint.fromfloat(self.value).tofloat()
     return values.W_Flonum(float(self.value - val))
예제 #23
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 def _arith_float_fractional_part(self):
     try:
         val = rarithmetic.ovfcheck_float_to_int(self.value)
     except OverflowError:
         val = rbigint.fromfloat(self.value).tofloat()
     return float(self.value - val)
예제 #24
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def _parse_int(string, radix):
    assert isinstance(string, unicode)
    NUMERALS = u'0123456789abcdefghijklmnopqrstuvwxyz'
    input_string = string
    s = _strip(input_string)
    sign = 1

    if s.startswith(u'-'):
        sign = -1
    if s.startswith(u'-') or s.startswith(u'+'):
        s = s[1:]

    r = radix
    strip_prefix = True

    if r != 0:
        if r < 2 or r > 36:
            return NAN
        if r != 16:
            strip_prefix = False
    else:
        r = 10

    if strip_prefix:
        if len(s) >= 2 and (s.startswith(u'0x') or s.startswith(u'0X')):
            s = s[2:]
            r = 16
        # TODO this is not specified in ecma 5 but tests expect it and it's implemented in v8!
        elif len(s) > 1 and s.startswith(u'0'):
            r = 8

    numerals = NUMERALS[:r]

    z = []
    for char in s:
        uni_ord = unicodedb.tolower(ord(char))
        if uni_ord > 128:
            break
        c = chr(uni_ord)
        if c not in numerals:
            break
        z.append(c)

    if not z:
        return NAN

    num_str = ''.join(z)

    try:
        number = int(num_str, r)
        try:
            from rpython.rlib.rarithmetic import ovfcheck_float_to_int
            ovfcheck_float_to_int(number)
        except OverflowError:
            number = float(number)
        return sign * number
    except OverflowError:
        return INFINITY
    except ValueError:
        pass

    return NAN
예제 #25
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파일: values.py 프로젝트: uternet/pycket
 def fromfloat(value):
     try:
         val = rarithmetic.ovfcheck_float_to_int(value)
     except OverflowError:
         return W_Bignum(rbigint.fromfloat(value))
     return W_Fixnum(val)
예제 #26
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def _time_primitive(primitive, activation_record, interpreter):
    # Returns an integer representing a point in time. Should be used for benching
    activation_record.push(interpreter.space.new_integer(ovfcheck_float_to_int(time.time() * 1000000)))
예제 #27
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def func(interp, s_frame, f):
    try:
        return interp.space.wrap_int(ovfcheck_float_to_int(f))
    except OverflowError:
        raise PrimitiveFailedError
예제 #28
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def _parse_int(string, radix):
    assert isinstance(string, unicode)
    NUMERALS = u'0123456789abcdefghijklmnopqrstuvwxyz'
    input_string = string
    s = _strip(input_string)
    sign = 1

    if s.startswith(u'-'):
        sign = -1
    if s.startswith(u'-') or s.startswith(u'+'):
        s = s[1:]

    r = radix
    strip_prefix = True

    if r != 0:
        if r < 2 or r > 36:
            return NAN
        if r != 16:
            strip_prefix = False
    else:
        r = 10

    if strip_prefix:
        if len(s) >= 2 and (s.startswith(u'0x') or s.startswith(u'0X')):
            s = s[2:]
            r = 16
        # TODO this is not specified in ecma 5 but tests expect it and it's implemented in v8!
        elif len(s) > 1 and s.startswith(u'0'):
            r = 8

    numerals = NUMERALS[:r]

    z = []
    for char in s:
        uni_ord = unicodedb.tolower(ord(char))
        if uni_ord > 128:
            break
        c = chr(uni_ord)
        if c not in numerals:
            break
        z.append(c)

    if not z:
        return NAN

    num_str = ''.join(z)

    try:
        number = int(num_str, r)
        try:
            from rpython.rlib.rarithmetic import ovfcheck_float_to_int
            ovfcheck_float_to_int(number)
        except OverflowError:
            number = float(number)
        return sign * number
    except OverflowError:
        return INFINITY
    except ValueError:
        pass

    return NAN
예제 #29
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 def arith_ceiling(self):
     try:
         val = ovfcheck_float_to_int(math.ceil(self.floatval))
     except OverflowError:
         return term.BigInt(rbigint.fromfloat(math.ceil(self.floatval)))
     return term.Number(val)
예제 #30
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 def arith_pow_number(self, other_num):
     try:
         res = ovfcheck_float_to_int(math.pow(other_num, self.num))
     except OverflowError:
         return self.arith_pow_bigint(rbigint.fromint(other_num))
     return term.Number(res)
예제 #31
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 def arith_float_fractional_part(self):
     try:
         val = ovfcheck_float_to_int(self.floatval)
     except OverflowError:
         val = rbigint.fromfloat(self.floatval).tofloat()
     return term.Float(float(self.floatval - val))
예제 #32
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 def arith_float_integer_part(self):
     try:
         val = ovfcheck_float_to_int(self.floatval)
     except OverflowError:
         return term.BigInt(rbigint.fromfloat(self.floatval))
     return term.Number(val)
예제 #33
0
파일: test_typed.py 프로젝트: soIu/rpython
 def func(fl):
     try:
         return ovfcheck_float_to_int(fl)
     except OverflowError:
         return -666
예제 #34
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 def fromfloat(value):
     try:
         val = rarithmetic.ovfcheck_float_to_int(value)
     except OverflowError:
         return W_Bignum(rbigint.fromfloat(value))
     return W_Fixnum(val)
예제 #35
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파일: test_typed.py 프로젝트: charred/pypy
 def func(fl):
     try:
         return ovfcheck_float_to_int(fl)
     except OverflowError:
         return -666