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It is simply defined as `f64` across every platform right now. A use case hasn't been presented for a `float` type defined as the highest precision floating point type implemented in hardware on the platform. Performance-wise, using the smallest precision correct for the use case greatly saves on cache space and allows for fitting more numbers into SSE/AVX registers. If there was a use case, this could be implemented as simply a type alias or a struct thanks to `#[cfg(...)]`. Closes #6592 The mailing list thread, for reference: https://mail.mozilla.org/pipermail/rust-dev/2013-July/004632.html |
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Pandoc, a universal document converter, is required to generate docs as HTML from Rust's source code. It's available for most platforms here: http://johnmacfarlane.net/pandoc/installing.html Node.js (http://nodejs.org/) is also required for generating HTML from the Markdown docs (reference manual, tutorials, etc.) distributed with this git repository. To generate all the docs, run `make docs` from the root of the repository. This will convert the distributed Markdown docs to HTML and generate HTML doc for the 'std' and 'extra' libraries. To generate HTML documentation from one source file/crate, do something like: rustdoc --output-dir html-doc/ --output-format html ../src/libstd/path.rs (This, of course, requires that you've built/installed the `rustdoc` tool.) To generate an HTML version of a doc from Markdown, without having Node.js installed, do something like: pandoc --from=markdown --to=html --number-sections -o rust.html rust.md The syntax for pandoc flavored markdown can be found at: http://johnmacfarlane.net/pandoc/README.html#pandocs-markdown A nice quick reference (for non-pandoc markdown) is at: http://kramdown.rubyforge.org/quickref.html