On Wed, Dec 03, 2014 at 04:03:37PM +, Jonathan Wakely wrote:
> On 03/12/14 16:47 +0100, Marek Polacek wrote:
> >@@ -417,7 +417,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
> > typedef typename std::is_same<_CharT, char>::type _UseCache;
> >
> > static constexpr size_t
> >- _S_cache_size
On 03/12/14 16:47 +0100, Marek Polacek wrote:
@@ -417,7 +417,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
typedef typename std::is_same<_CharT, char>::type _UseCache;
static constexpr size_t
- _S_cache_size() { return 1ul << (sizeof(_CharT) * __CHAR_BIT__); }
+ _S_cache_size() { r
This fixes some testsuite fallout in 28_regex/. The problem was that
with -m32 we were triggering UB in a shift. Fixed by multiplying the
RHS of the shift-expression by 0 if we are not going to use the cache.
Regtested/bootstrapped on ppc64-linux, ok for trunk?
2014-12-03 Marek Polacek
