Marc Mintel
5397309103
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52 lines
1.5 KiB
Plaintext
52 lines
1.5 KiB
Plaintext
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.encodeF32 = encodeF32;
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exports.encodeF64 = encodeF64;
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exports.decodeF32 = decodeF32;
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exports.decodeF64 = decodeF64;
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exports.DOUBLE_PRECISION_MANTISSA = exports.SINGLE_PRECISION_MANTISSA = exports.NUMBER_OF_BYTE_F64 = exports.NUMBER_OF_BYTE_F32 = void 0;
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var _ieee = require("@xtuc/ieee754");
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/**
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* According to https://webassembly.github.io/spec/binary/values.html#binary-float
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* n = 32/8
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*/
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var NUMBER_OF_BYTE_F32 = 4;
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/**
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* According to https://webassembly.github.io/spec/binary/values.html#binary-float
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* n = 64/8
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*/
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exports.NUMBER_OF_BYTE_F32 = NUMBER_OF_BYTE_F32;
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var NUMBER_OF_BYTE_F64 = 8;
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exports.NUMBER_OF_BYTE_F64 = NUMBER_OF_BYTE_F64;
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var SINGLE_PRECISION_MANTISSA = 23;
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exports.SINGLE_PRECISION_MANTISSA = SINGLE_PRECISION_MANTISSA;
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var DOUBLE_PRECISION_MANTISSA = 52;
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exports.DOUBLE_PRECISION_MANTISSA = DOUBLE_PRECISION_MANTISSA;
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function encodeF32(v) {
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var buffer = [];
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(0, _ieee.write)(buffer, v, 0, true, SINGLE_PRECISION_MANTISSA, NUMBER_OF_BYTE_F32);
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return buffer;
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}
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function encodeF64(v) {
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var buffer = [];
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(0, _ieee.write)(buffer, v, 0, true, DOUBLE_PRECISION_MANTISSA, NUMBER_OF_BYTE_F64);
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return buffer;
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}
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function decodeF32(bytes) {
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var buffer = new Uint8Array(bytes);
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return (0, _ieee.read)(buffer, 0, true, SINGLE_PRECISION_MANTISSA, NUMBER_OF_BYTE_F32);
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}
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function decodeF64(bytes) {
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var buffer = new Uint8Array(bytes);
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return (0, _ieee.read)(buffer, 0, true, DOUBLE_PRECISION_MANTISSA, NUMBER_OF_BYTE_F64);
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} |