FM / float

/var/www/greso.tech/server/nsm/node_modules/@protobufjs/float/

/var/www/greso.tech/server/nsm/node_modules/@protobufjs/float

Name	Size	Mode	Actions
bench/	-	0755	rm
tests/	-	0755	rm
index.d.ts	2543	0644	edit dl rm
index.js	11448	0644	edit dl rm
LICENSE	1505	0644	edit dl rm
package.json	738	0644	edit dl rm
README.md	4144	0644	edit dl rm

Edit: /var/www/greso.tech/server/nsm/node_modules/@protobufjs/float/index.js (11448B)

"use strict";

module.exports = factory(factory);

/**
 * Reads / writes floats / doubles from / to buffers.
 * @name util.float
 * @namespace
 */

/**
 * Writes a 32 bit float to a buffer using little endian byte order.
 * @name util.float.writeFloatLE
 * @function
 * @param {number} val Value to write
 * @param {Uint8Array} buf Target buffer
 * @param {number} pos Target buffer offset
 * @returns {undefined}
 */

/**
 * Writes a 32 bit float to a buffer using big endian byte order.
 * @name util.float.writeFloatBE
 * @function
 * @param {number} val Value to write
 * @param {Uint8Array} buf Target buffer
 * @param {number} pos Target buffer offset
 * @returns {undefined}
 */

/**
 * Reads a 32 bit float from a buffer using little endian byte order.
 * @name util.float.readFloatLE
 * @function
 * @param {Uint8Array} buf Source buffer
 * @param {number} pos Source buffer offset
 * @returns {number} Value read
 */

/**
 * Reads a 32 bit float from a buffer using big endian byte order.
 * @name util.float.readFloatBE
 * @function
 * @param {Uint8Array} buf Source buffer
 * @param {number} pos Source buffer offset
 * @returns {number} Value read
 */

/**
 * Writes a 64 bit double to a buffer using little endian byte order.
 * @name util.float.writeDoubleLE
 * @function
 * @param {number} val Value to write
 * @param {Uint8Array} buf Target buffer
 * @param {number} pos Target buffer offset
 * @returns {undefined}
 */

/**
 * Writes a 64 bit double to a buffer using big endian byte order.
 * @name util.float.writeDoubleBE
 * @function
 * @param {number} val Value to write
 * @param {Uint8Array} buf Target buffer
 * @param {number} pos Target buffer offset
 * @returns {undefined}
 */

/**
 * Reads a 64 bit double from a buffer using little endian byte order.
 * @name util.float.readDoubleLE
 * @function
 * @param {Uint8Array} buf Source buffer
 * @param {number} pos Source buffer offset
 * @returns {number} Value read
 */

/**
 * Reads a 64 bit double from a buffer using big endian byte order.
 * @name util.float.readDoubleBE
 * @function
 * @param {Uint8Array} buf Source buffer
 * @param {number} pos Source buffer offset
 * @returns {number} Value read
 */

// Factory function for the purpose of node-based testing in modified global environments
function factory(exports) {

// float: typed array
    if (typeof Float32Array !== "undefined") (function() {

var f32 = new Float32Array([ -0 ]),
            f8b = new Uint8Array(f32.buffer),
            le  = f8b[3] === 128;

function writeFloat_f32_cpy(val, buf, pos) {
            f32[0] = val;
            buf[pos    ] = f8b[0];
            buf[pos + 1] = f8b[1];
            buf[pos + 2] = f8b[2];
            buf[pos + 3] = f8b[3];
        }

function writeFloat_f32_rev(val, buf, pos) {
            f32[0] = val;
            buf[pos    ] = f8b[3];
            buf[pos + 1] = f8b[2];
            buf[pos + 2] = f8b[1];
            buf[pos + 3] = f8b[0];
        }

/* istanbul ignore next */
        exports.writeFloatLE = le ? writeFloat_f32_cpy : writeFloat_f32_rev;
        /* istanbul ignore next */
        exports.writeFloatBE = le ? writeFloat_f32_rev : writeFloat_f32_cpy;

function readFloat_f32_cpy(buf, pos) {
            f8b[0] = buf[pos    ];
            f8b[1] = buf[pos + 1];
            f8b[2] = buf[pos + 2];
            f8b[3] = buf[pos + 3];
            return f32[0];
        }

function readFloat_f32_rev(buf, pos) {
            f8b[3] = buf[pos    ];
            f8b[2] = buf[pos + 1];
            f8b[1] = buf[pos + 2];
            f8b[0] = buf[pos + 3];
            return f32[0];
        }

/* istanbul ignore next */
        exports.readFloatLE = le ? readFloat_f32_cpy : readFloat_f32_rev;
        /* istanbul ignore next */
        exports.readFloatBE = le ? readFloat_f32_rev : readFloat_f32_cpy;

// float: ieee754
    })(); else (function() {

function writeFloat_ieee754(writeUint, val, buf, pos) {
            var sign = val < 0 ? 1 : 0;
            if (sign)
                val = -val;
            if (val === 0)
                writeUint(1 / val > 0 ? /* positive */ 0 : /* negative 0 */ 2147483648, buf, pos);
            else if (isNaN(val))
                writeUint(2143289344, buf, pos);
            else if (val > 3.4028234663852886e+38) // +-Infinity
                writeUint((sign << 31 | 2139095040) >>> 0, buf, pos);
            else if (val < 1.1754943508222875e-38) // denormal
                writeUint((sign << 31 | Math.round(val / 1.401298464324817e-45)) >>> 0, buf, pos);
            else {
                var exponent = Math.floor(Math.log(val) / Math.LN2),
                    mantissa = Math.round(val * Math.pow(2, -exponent) * 8388608) & 8388607;
                writeUint((sign << 31 | exponent + 127 << 23 | mantissa) >>> 0, buf, pos);
            }
        }

exports.writeFloatLE = writeFloat_ieee754.bind(null, writeUintLE);
        exports.writeFloatBE = writeFloat_ieee754.bind(null, writeUintBE);

function readFloat_ieee754(readUint, buf, pos) {
            var uint = readUint(buf, pos),
                sign = (uint >> 31) * 2 + 1,
                exponent = uint >>> 23 & 255,
                mantissa = uint & 8388607;
            return exponent === 255
                ? mantissa
                ? NaN
                : sign * Infinity
                : exponent === 0 // denormal
                ? sign * 1.401298464324817e-45 * mantissa
                : sign * Math.pow(2, exponent - 150) * (mantissa + 8388608);
        }

exports.readFloatLE = readFloat_ieee754.bind(null, readUintLE);
        exports.readFloatBE = readFloat_ieee754.bind(null, readUintBE);

})();

// double: typed array
    if (typeof Float64Array !== "undefined") (function() {

var f64 = new Float64Array([-0]),
            f8b = new Uint8Array(f64.buffer),
            le  = f8b[7] === 128;

function writeDouble_f64_cpy(val, buf, pos) {
            f64[0] = val;
            buf[pos    ] = f8b[0];
            buf[pos + 1] = f8b[1];
            buf[pos + 2] = f8b[2];
            buf[pos + 3] = f8b[3];
            buf[pos + 4] = f8b[4];
            buf[pos + 5] = f8b[5];
            buf[pos + 6] = f8b[6];
            buf[pos + 7] = f8b[7];
        }

function writeDouble_f64_rev(val, buf, pos) {
            f64[0] = val;
            buf[pos    ] = f8b[7];
            buf[pos + 1] = f8b[6];
            buf[pos + 2] = f8b[5];
            buf[pos + 3] = f8b[4];
            buf[pos + 4] = f8b[3];
            buf[pos + 5] = f8b[2];
            buf[pos + 6] = f8b[1];
            buf[pos + 7] = f8b[0];
        }

/* istanbul ignore next */
        exports.writeDoubleLE = le ? writeDouble_f64_cpy : writeDouble_f64_rev;
        /* istanbul ignore next */
        exports.writeDoubleBE = le ? writeDouble_f64_rev : writeDouble_f64_cpy;

function readDouble_f64_cpy(buf, pos) {
            f8b[0] = buf[pos    ];
            f8b[1] = buf[pos + 1];
            f8b[2] = buf[pos + 2];
            f8b[3] = buf[pos + 3];
            f8b[4] = buf[pos + 4];
            f8b[5] = buf[pos + 5];
            f8b[6] = buf[pos + 6];
            f8b[7] = buf[pos + 7];
            return f64[0];
        }

function readDouble_f64_rev(buf, pos) {
            f8b[7] = buf[pos    ];
            f8b[6] = buf[pos + 1];
            f8b[5] = buf[pos + 2];
            f8b[4] = buf[pos + 3];
            f8b[3] = buf[pos + 4];
            f8b[2] = buf[pos + 5];
            f8b[1] = buf[pos + 6];
            f8b[0] = buf[pos + 7];
            return f64[0];
        }

/* istanbul ignore next */
        exports.readDoubleLE = le ? readDouble_f64_cpy : readDouble_f64_rev;
        /* istanbul ignore next */
        exports.readDoubleBE = le ? readDouble_f64_rev : readDouble_f64_cpy;

// double: ieee754
    })(); else (function() {

exports.writeDoubleLE = writeDouble_ieee754.bind(null, writeUintLE, 0, 4);
        exports.writeDoubleBE = writeDouble_ieee754.bind(null, writeUintBE, 4, 0);

function readDouble_ieee754(readUint, off0, off1, buf, pos) {
            var lo = readUint(buf, pos + off0),
                hi = readUint(buf, pos + off1);
            var sign = (hi >> 31) * 2 + 1,
                exponent = hi >>> 20 & 2047,
                mantissa = 4294967296 * (hi & 1048575) + lo;
            return exponent === 2047
                ? mantissa
                ? NaN
                : sign * Infinity
                : exponent === 0 // denormal
                ? sign * 5e-324 * mantissa
                : sign * Math.pow(2, exponent - 1075) * (mantissa + 4503599627370496);
        }

exports.readDoubleLE = readDouble_ieee754.bind(null, readUintLE, 0, 4);
        exports.readDoubleBE = readDouble_ieee754.bind(null, readUintBE, 4, 0);

})();

return exports;
}

// uint helpers

function writeUintLE(val, buf, pos) {
    buf[pos    ] =  val        & 255;
    buf[pos + 1] =  val >>> 8  & 255;
    buf[pos + 2] =  val >>> 16 & 255;
    buf[pos + 3] =  val >>> 24;
}

function writeUintBE(val, buf, pos) {
    buf[pos    ] =  val >>> 24;
    buf[pos + 1] =  val >>> 16 & 255;
    buf[pos + 2] =  val >>> 8  & 255;
    buf[pos + 3] =  val        & 255;
}

function readUintLE(buf, pos) {
    return (buf[pos    ]
          | buf[pos + 1] << 8
          | buf[pos + 2] << 16
          | buf[pos + 3] << 24) >>> 0;
}

function readUintBE(buf, pos) {
    return (buf[pos    ] << 24
          | buf[pos + 1] << 16
          | buf[pos + 2] << 8
          | buf[pos + 3]) >>> 0;
}

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