Huon Wilson e1ebdb8790 std::trie: optimise insert slightly.
This reduces the number of moves/memcpy's we do, which makes insert
faster, especially in cases of keys with long equal prefixes (the
_low_bits tests):

Before:

    bench_insert_large                ... bench:    553966 ns/iter (+/- 64050)
    bench_insert_large_low_bits       ... bench:   1048151 ns/iter (+/- 92484)
    bench_insert_small                ... bench:    168840 ns/iter (+/- 22410)
    bench_insert_small_low_bits       ... bench:    185069 ns/iter (+/- 38332)

After:

    bench_insert_large                ... bench:    422132 ns/iter (+/- 35112)
    bench_insert_large_low_bits       ... bench:    339083 ns/iter (+/- 34421)
    bench_insert_small                ... bench:    134539 ns/iter (+/- 15254)
    bench_insert_small_low_bits       ... bench:     88775 ns/iter (+/- 5746)
2014-01-15 12:03:21 +11:00
..
2014-01-06 09:26:47 -08:00
2014-01-12 17:45:22 -08:00
2014-01-13 02:21:19 -08:00
2014-01-12 17:45:22 -08:00
2014-01-12 17:45:22 -08:00
2014-01-12 17:45:22 -08:00
2014-01-12 17:45:22 -08:00
2014-01-09 09:18:59 -08:00

This is a preliminary version of the Rust compiler, libraries and tools.

Source layout:

Path Description
librustc/ The self-hosted compiler
libstd/ The standard library (imported and linked by default)
libextra/ The "extras" library (slightly more peripheral code)
libgreen/ The M:N runtime library
libnative/ The 1:1 runtime library
libsyntax/ The Rust parser and pretty-printer
------------------- ---------------------------------------------------------
rt/ The runtime system
rt/rust_*.c - Some of the runtime services
rt/vg - Valgrind headers
rt/msvc - MSVC support
rt/sundown - The Markdown library used by rustdoc
------------------- ---------------------------------------------------------
compiletest/ The test runner
test/ Testsuite
test/codegen - Tests for the LLVM IR infrastructure
test/compile-fail - Tests that should fail to compile
test/debug-info - Tests for the debuginfo tool
test/run-fail - Tests that should compile, run and fail
test/run-make - Tests that depend on a Makefile infrastructure
test/run-pass - Tests that should compile, run and succeed
test/bench - Benchmarks and miscellaneous
test/pretty - Pretty-printer tests
test/auxiliary - Dependencies of tests
------------------- ---------------------------------------------------------
librustdoc/ The Rust API documentation tool
librustpkg/ The package manager and build system
libuv/ The libuv submodule
------------------- ---------------------------------------------------------
llvm/ The LLVM submodule
rustllvm/ LLVM support code
------------------- ---------------------------------------------------------
etc/ Scripts, editors support, misc