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Eric Fiselier ad1a12c312 Improve performance of constructing filesystem::path from strings.

This patch fixes a performance bug when constructing or appending to a path
from a string or c-string. Previously we called 'push_back' to append every
single character. This caused multiple re-allocation and copies when at most
one reallocation is necessary. The new behavior is to simply call
`string::append` so it can correctly handle reallocation.

For large strings this change is a ~4x improvement. This also makes our path
faster to construct than libstdc++'s.


git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@285530 91177308-0d34-0410-b5e6-96231b3b80d8

2016-10-30 23:53:50 +00:00

benchmarks

Improve performance of constructing filesystem::path from strings.

2016-10-30 23:53:50 +00:00

cmake

[cmake] Allow testing against installed LLVM with no sources

2016-10-19 12:34:17 +00:00

docs

Add start of filesystem benchmarks

2016-10-30 22:53:00 +00:00

include

Improve performance of constructing filesystem::path from strings.

2016-10-30 23:53:50 +00:00

lib

Revert addition of __libcpp_library_version

2016-10-28 22:37:24 +00:00

src

Improve performance of constructing filesystem::path from strings.

2016-10-30 23:53:50 +00:00

test

Rewrite std::filesystem::path iterators and parser

2016-10-30 23:30:38 +00:00

utils

Sort ABI lists by name so that changes don't generate big diffs

2016-10-14 05:04:00 +00:00

www

Implement constexpr support for reverse_iterator. Reviewed as https://reviews.llvm.org/D25534

2016-10-19 15:12:50 +00:00

.arcconfig

Upgrade arcconfig to use https

2016-07-18 02:02:49 +00:00

.gitignore

Implement N4606 optional

2016-10-12 07:46:20 +00:00

CMakeLists.txt

Add start of filesystem benchmarks

2016-10-30 22:53:00 +00:00

CREDITS.TXT

Add entry to CREDITS.TXT for propagate_const

2016-06-19 19:36:28 +00:00

LICENSE.TXT

2016-03-30 22:39:53 +00:00

TODO.TXT

Remove out of date items in TODO.txt

2016-09-27 01:28:47 +00:00

docs/README.txt

libc++ Documentation
====================

The libc++ documentation is written using the Sphinx documentation generator. It is
currently tested with Sphinx 1.1.3.

To build the documents into html configure libc++ with the following cmake options:

  * -DLLVM_ENABLE_SPHINX=ON
  * -DLIBCXX_INCLUDE_DOCS=ON

After configuring libc++ with these options the make rule `docs-libcxx-html`
should be available.

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