first commit

app_vue/node_modules/@xtuc/ieee754/dist/index.cjs.js

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+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.read = read;
+exports.write = write;
+
+function read(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);
+}
+
+function write(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;
+}