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add support for quadruple precision floating point

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This currently requires linking against a library like libquadmath (or
libgcc), because compiler-rt barely has any support for this and most
hardware does not yet have 128-bit precision floating point. For this
reason, it's currently hidden behind a feature gate.

When compiler-rt is updated to trunk, some tests can be added for
constant evaluation since there will be support for the comparison
operators.

Closes #13381
This commit is contained in:
Daniel Micay 2014-04-08 18:08:08 -04:00
parent 09bfb92fdc
commit dc7d7d2698
21 changed files with 81 additions and 10 deletions
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4
src/libstd/lib.rs
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@ -52,11 +52,13 @@
html_favicon_url = "http://www.rust-lang.org/favicon.ico",
html_root_url = "http://static.rust-lang.org/doc/master")]
#![feature(macro_rules, globs, asm, managed_boxes, thread_local, link_args,
simd, linkage, default_type_params, phase, concat_idents)]
simd, linkage, default_type_params, phase, concat_idents, quad_precision_float)]
// Don't link to std. We are std.
#![no_std]
// NOTE: remove after snapshot
#![allow(unknown_features)]
#![deny(missing_doc)]
// When testing libstd, bring in libuv as the I/O backend so tests can print