mirror of
https://github.com/Halofreak1990/XFXFramework
synced 2024-12-26 13:49:34 +01:00
136 lines
3.7 KiB
C++
136 lines
3.7 KiB
C++
// Copyright (C) XFX Team
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of the copyright holder nor the names of any
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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#include <System/Double.h>
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#include <System/FrameworkResources.h>
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#include <System/String.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sassert.h>
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namespace System
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{
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unsigned long long rawNaND = 0x7ff8000000000000ULL;
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unsigned long long rawPosInfD = 0x7ff0000000000000ULL;
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unsigned long long rawNegInfD = 0xfff0000000000000ULL;
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const double Double::Epsilon = 4.94066e-324;
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const double Double::MaxValue = 1.79769e+308;
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const double Double::MinValue = -1.79769e+308;
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const double Double::NaN = *(double *)&rawNaND;
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const double Double::PositiveInfinity = *(double *)&rawPosInfD;
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const double Double::NegativeInfinity = *(double *)&rawNegInfD;
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Double::Double(const Double &obj)
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: value(obj.value)
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{
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}
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Double::Double(const double &obj)
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: value(obj)
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{
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}
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int Double::CompareTo(const Double other) const
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{
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if (value > other.value)
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return 1;
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if (value < other.value)
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return -1;
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return 0;
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}
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bool Double::Equals(const Double other) const
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{
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return (*this == other);
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}
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int Double::GetHashCode() const
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{
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return (int)value;
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}
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int Double::GetType() const
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{
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return 14;
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}
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bool Double::TryParse(const String& str, out double* result)
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{
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sassert(!String::IsNullOrEmpty(str), String::Format("str; %s", FrameworkResources::ArgumentNull_Generic));
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sassert(result, String::Format("result; %s", FrameworkResources::ArgumentNull_Generic));
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*result = 0;
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char sign = 0;
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char *sp = const_cast<char*>((const char *)str.ToString());
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if (*sp == '+' || *sp == '-')
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sign = *sp++;
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if (stricmp(sp, "inf") == 0)
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{
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if (!sign || sign == '+')
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*result = PositiveInfinity;
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else
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*result = NegativeInfinity;
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}
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else if (stricmp(sp, "nan") == 0)
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*result = NaN;
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else /* valid number */
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*result = atof(sp);
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return true;
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}
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const String& Double::ToString() const
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{
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return String::Format("%g", value);
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}
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const String& Double::ToString(const double value)
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{
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return String::Format("%g", value);
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}
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Double::operator double() const
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{
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return value;
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}
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bool Double::operator !=(const Double& right) const
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{
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return (value != right.value);
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}
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bool Double::operator ==(const Double& right) const
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{
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return (value == right.value);
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}
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}
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