mirror of
https://codeup.aliyun.com/67c68d4e484ca2f0a13ac3c1/ydc/jsowell-charger-web.git
synced 2026-04-22 20:15:06 +08:00
# Conflicts: # jsowell-ui/.env.development # jsowell-ui/.env.staging # jsowell-ui/bin/build-sit.bat # jsowell-ui/bin/build.bat # jsowell-ui/src/api/adapayMember/adapayMember.js # jsowell-ui/src/api/pile/merchant.js # jsowell-ui/src/router/index.js # jsowell-ui/src/views/financial/financeDetail.vue # jsowell-ui/src/views/financial/merchant.vue # jsowell-ui/src/views/homeIndex/homeIndex.vue # jsowell-ui/src/views/login.vue # jsowell-ui/src/views/pile/basic/detail.vue # jsowell-ui/src/views/pile/station/components/SiteInfo.vue # jsowell-ui/src/views/pile/station/detail.vue # jsowell-ui/src/views/pile/station/orderReport.vue
34 lines
845 B
JavaScript
34 lines
845 B
JavaScript
'use strict';
|
|
|
|
var MAX_ITER = 1075; // 1023+52 (subnormals) => BIAS+NUM_SIGNFICAND_BITS-1
|
|
var maxBits = 54; // only 53 bits for fraction
|
|
|
|
module.exports = function fractionToBitString(x) {
|
|
var str = '';
|
|
if (x === 0) {
|
|
return str;
|
|
}
|
|
var j = MAX_ITER;
|
|
|
|
var y;
|
|
// Each time we multiply by 2 and find a ones digit, add a '1'; otherwise, add a '0'..
|
|
for (var i = 0; i < MAX_ITER; i += 1) {
|
|
y = x * 2;
|
|
if (y >= 1) {
|
|
x = y - 1; // eslint-disable-line no-param-reassign
|
|
str += '1';
|
|
if (j === MAX_ITER) {
|
|
j = i; // first 1
|
|
}
|
|
} else {
|
|
x = y; // eslint-disable-line no-param-reassign
|
|
str += '0';
|
|
}
|
|
// Stop when we have no more decimals to process or in the event we found a fraction which cannot be represented in a finite number of bits...
|
|
if (y === 1 || i - j > maxBits) {
|
|
return str;
|
|
}
|
|
}
|
|
return str;
|
|
};
|