toFloat64
Creates a double-precision floating-point number from a higher order word and a lower order word.
Installation
$ npm install math-float64-from-words
Usage
var toFloat64 = ;
toFloat64( high, low )
Creates a double-precision floating-point number from a higher order word (unsigned 32-bit integer
) and a lower order word (unsigned 32-bit integer
).
var val = ;// returns 3.14e201val = ;// returns 3.141592653589793val = ;// returns 0val = ;// returns -0val = ;// returns NaNval = ;// returns +infinityval = ;// returns -infinity
Notes
- For more information regarding higher and lower order words, see math-float64-to-words.
Examples
var round = ;var pow = ;var toFloat64 = ;var MAX_UINT;var high;var low;var x;var i;MAX_UINT = - 1;for i = 0; i < 100; i++high = ;low = ;x = ;console;
To run the example code from the top-level application directory,
$ node ./examples/index.js
Tests
Unit
This repository uses tape for unit tests. To run the tests, execute the following command in the top-level application directory:
$ make test
All new feature development should have corresponding unit tests to validate correct functionality.
Test Coverage
This repository uses Istanbul as its code coverage tool. To generate a test coverage report, execute the following command in the top-level application directory:
$ make test-cov
Istanbul creates a ./reports/coverage
directory. To access an HTML version of the report,
$ make view-cov
Browser Support
This repository uses Testling for browser testing. To run the tests in a (headless) local web browser, execute the following command in the top-level application directory:
$ make test-browsers
To view the tests in a local web browser,
$ make view-browser-tests
License
Copyright
Copyright © 2016. The Compute.io Authors.