Quash a whole bunch of warnings
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@145624 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/regex b/include/regex
index 0774eee..2ebb0f1 100644
--- a/include/regex
+++ b/include/regex
@@ -4404,7 +4404,7 @@
if (__hd == -1)
throw regex_error(regex_constants::error_escape);
#endif // _LIBCPP_NO_EXCEPTIONS
- __sum = 16 * __sum + __hd;
+ __sum = 16 * __sum + static_cast<unsigned>(__hd);
++__first;
#ifndef _LIBCPP_NO_EXCEPTIONS
if (__first == __last)
@@ -4415,7 +4415,7 @@
if (__hd == -1)
throw regex_error(regex_constants::error_escape);
#endif // _LIBCPP_NO_EXCEPTIONS
- __sum = 16 * __sum + __hd;
+ __sum = 16 * __sum + static_cast<unsigned>(__hd);
// drop through
case 'x':
++__first;
@@ -4428,7 +4428,7 @@
if (__hd == -1)
throw regex_error(regex_constants::error_escape);
#endif // _LIBCPP_NO_EXCEPTIONS
- __sum = 16 * __sum + __hd;
+ __sum = 16 * __sum + static_cast<unsigned>(__hd);
++__first;
#ifndef _LIBCPP_NO_EXCEPTIONS
if (__first == __last)
@@ -4439,7 +4439,7 @@
if (__hd == -1)
throw regex_error(regex_constants::error_escape);
#endif // _LIBCPP_NO_EXCEPTIONS
- __sum = 16 * __sum + __hd;
+ __sum = 16 * __sum + static_cast<unsigned>(__hd);
if (__str)
*__str = _CharT(__sum);
else
@@ -5496,8 +5496,6 @@
regex_constants::match_flag_type __flags, bool __at_first) const
{
vector<__state> __states;
- ptrdiff_t __j = 0;
- ptrdiff_t _Np = _VSTD::distance(__first, __last);
__node* __st = __start_.get();
if (__st)
{
@@ -5511,7 +5509,6 @@
__states.back().__node_ = __st;
__states.back().__flags_ = __flags;
__states.back().__at_first_ = __at_first;
- bool __matched = false;
do
{
__state& __s = __states.back();