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/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <AK/FlyString.h>
#include <AK/Function.h>
#include <LibJS/Interpreter.h>
#include <LibJS/Runtime/MathObject.h>
#include <LibM/math.h>
namespace JS {
MathObject::MathObject()
{
put_native_function("abs", abs);
put_native_function("random", random);
put("E", Value(M_E));
put("LN2", Value(M_LN2));
put("LN10", Value(M_LN10));
put("LOG2E", Value(log2(M_E)));
put("LOG10E", Value(log10(M_E)));
put("PI", Value(M_PI));
put("SQRT1_2", Value(sqrt(1 / 2)));
put("SQRT2", Value(sqrt(2)));
}
MathObject::~MathObject()
{
}
Value MathObject::abs(Interpreter& interpreter)
{
if (!interpreter.argument_count())
return js_nan();
auto number = interpreter.argument(0).to_number();
if (number.is_nan())
return js_nan();
return Value(number.as_double() >= 0 ? number.as_double() : -number.as_double());
}
Value MathObject::random(Interpreter&)
{
#ifdef __serenity__
double r = (double)arc4random() / (double)UINT32_MAX;
#else
double r = (double)rand() / (double)RAND_MAX;
#endif
return Value(r);
}
}
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