Make string_view operations involving CharT* *not* noexcept and consistent beween string_view and string_view.tcc.

[Jonathan Wakely]

On 29/03/14 14:54 -0400, Ed Smith-Rowland wrote:
>All,
>
>In string_view I botched the noexcept specification of operations 
>like find and friends with CharT* arguments.
>
>I'm a little surprised the inconsistency between string_view and 
>string_view.tcc didn't error.  In fact, in one repo thats a little 
>behind trunk it does.  I'll continue to look after that issue 
>separately.

I'm fixing this differently, by strengthening the exception specs as
Marc suggested. I haven't addressed Marc's other comments, but we
should do.

Tested x86_64-linux, committed to trunk.
-------------- next part --------------
commit 5ac00aa4544a4c10c3eeadb8ca2a3ce57d9e62ce
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Tue Apr 15 19:45:29 2014 +0100

    	* include/experimental/string_view: Fix inconsistent exception specs.

diff --git a/libstdc++-v3/include/experimental/string_view b/libstdc++-v3/include/experimental/string_view
index bebeb6b..6b6588b 100644
--- a/libstdc++-v3/include/experimental/string_view
+++ b/libstdc++-v3/include/experimental/string_view
@@ -329,7 +329,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       find(_CharT __c, size_type __pos=0) const noexcept;
 
       size_type
-      find(const _CharT* __str, size_type __pos, size_type __n) const;
+      find(const _CharT* __str, size_type __pos, size_type __n) const noexcept;
 
       size_type
       find(const _CharT* __str, size_type __pos=0) const noexcept
@@ -343,7 +343,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       rfind(_CharT __c, size_type __pos = npos) const noexcept;
 
       size_type
-      rfind(const _CharT* __str, size_type __pos, size_type __n) const;
+      rfind(const _CharT* __str, size_type __pos, size_type __n) const noexcept;
 
       size_type
       rfind(const _CharT* __str, size_type __pos = npos) const noexcept