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32 lines
823 B
Haxe
32 lines
823 B
Haxe
package funkin.util.tools;
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/**
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* @see https://github.com/fponticelli/thx.core/blob/master/src/thx/Int64s.hx
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*/
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class Int64Tools
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{
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static var min = haxe.Int64.make(0x80000000, 0);
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static var one = haxe.Int64.make(0, 1);
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static var two = haxe.Int64.ofInt(2);
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static var zero = haxe.Int64.make(0, 0);
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static var ten = haxe.Int64.ofInt(10);
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public static function toFloat(i:haxe.Int64):Float
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{
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var isNegative = false;
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if (i < 0)
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{
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if (i < min) return -9223372036854775808.0; // most -ve value can't be made +ve
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isNegative = true;
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i = -i;
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}
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var multiplier = 1.0, ret = 0.0;
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for (_ in 0...64)
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{
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if (haxe.Int64.and(i, one) != zero) ret += multiplier;
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multiplier *= 2.0;
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i = haxe.Int64.shr(i, 1);
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}
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return (isNegative ? -1 : 1) * ret;
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}
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}
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