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[patch] Define std::codecvt<char16_t,...> and std::codecvt<char32_t,...>

From: Jonathan Wakely <jwakely at redhat dot com>
To: libstdc++ at gcc dot gnu dot org, gcc-patches at gcc dot gnu dot org
Date: Fri, 16 Jan 2015 15:02:26 +0000
Subject: [patch] Define std::codecvt<char16_t,...> and std::codecvt<char32_t,...>
Authentication-results: sourceware.org; auth=none

This adds the two codecvt specializations added by C++11 for UTF-8
conversions.

The functions in src/c++11/codecvt.cc are also needed for the other
new facets such as codecvt_utf8, which I'm still working on.

I had hoped to implement all these facts with iconv, but it's pretty
hard to do for the codecvt_utf8 and similar ones, because of the
requirements to generate/consum a BOM and the switch endianness on the
fly.

Tested x86_64-linux, committed to trunk.

Attachment: patch.txt
Description: Text document

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