@dioxide-js/silas/dist/esm/node_modules/ieee754/index.mjs

RPC utility for Silas

import { __exports as ieee754 } from '../../_virtual/index11.mjs';

/*! ieee754. BSD-3-Clause License. Feross Aboukhadijeh <https://feross.org/opensource> */

var hasRequiredIeee754;

function requireIeee754 () {
	if (hasRequiredIeee754) return ieee754;
	hasRequiredIeee754 = 1;
	ieee754.read = function (buffer, offset, isLE, mLen, nBytes) {
	  var e, m;
	  var eLen = (nBytes * 8) - mLen - 1;
	  var eMax = (1 << eLen) - 1;
	  var eBias = eMax >> 1;
	  var nBits = -7;
	  var i = isLE ? (nBytes - 1) : 0;
	  var d = isLE ? -1 : 1;
	  var s = buffer[offset + i];

	  i += d;

	  e = s & ((1 << (-nBits)) - 1);
	  s >>= (-nBits);
	  nBits += eLen;
	  for (; nBits > 0; e = (e * 256) + buffer[offset + i], i += d, nBits -= 8) {}

	  m = e & ((1 << (-nBits)) - 1);
	  e >>= (-nBits);
	  nBits += mLen;
	  for (; nBits > 0; m = (m * 256) + buffer[offset + i], i += d, nBits -= 8) {}

	  if (e === 0) {
	    e = 1 - eBias;
	  } else if (e === eMax) {
	    return m ? NaN : ((s ? -1 : 1) * Infinity)
	  } else {
	    m = m + Math.pow(2, mLen);
	    e = e - eBias;
	  }
	  return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
	};

	ieee754.write = function (buffer, value, offset, isLE, mLen, nBytes) {
	  var e, m, c;
	  var eLen = (nBytes * 8) - mLen - 1;
	  var eMax = (1 << eLen) - 1;
	  var eBias = eMax >> 1;
	  var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0);
	  var i = isLE ? 0 : (nBytes - 1);
	  var d = isLE ? 1 : -1;
	  var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0;

	  value = Math.abs(value);

	  if (isNaN(value) || value === Infinity) {
	    m = isNaN(value) ? 1 : 0;
	    e = eMax;
	  } else {
	    e = Math.floor(Math.log(value) / Math.LN2);
	    if (value * (c = Math.pow(2, -e)) < 1) {
	      e--;
	      c *= 2;
	    }
	    if (e + eBias >= 1) {
	      value += rt / c;
	    } else {
	      value += rt * Math.pow(2, 1 - eBias);
	    }
	    if (value * c >= 2) {
	      e++;
	      c /= 2;
	    }

	    if (e + eBias >= eMax) {
	      m = 0;
	      e = eMax;
	    } else if (e + eBias >= 1) {
	      m = ((value * c) - 1) * Math.pow(2, mLen);
	      e = e + eBias;
	    } else {
	      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen);
	      e = 0;
	    }
	  }

	  for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}

	  e = (e << mLen) | m;
	  eLen += mLen;
	  for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}

	  buffer[offset + i - d] |= s * 128;
	};
	return ieee754;
}

export { requireIeee754 as __require };
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