mirror of git://gcc.gnu.org/git/gcc.git
re PR libstdc++/61166 (overflow when parse number in std::duration operator"")
2014-05-15 Ed Smith-Rowland <3dw4rd@verizon.net> Jonathan Wakely <jwakely@redhat.com> PR libstdc++/61166 * include/bits/parse_numbers.h: Use integral_constant to remove duplication and simplify. * testsuite/20_util/duration/literals/61166.cc: New. Co-Authored-By: Jonathan Wakely <jwakely@redhat.com> From-SVN: r210511
This commit is contained in:
Ed Smith-Rowland
Jonathan Wakely
parent
88d4fbcf50
commit
a2f4bd2ae1
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@ -1,3 +1,11 @@
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2014-05-15 Ed Smith-Rowland <3dw4rd@verizon.net>
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Jonathan Wakely <jwakely@redhat.com>
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PR libstdc++/61166
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* include/bits/parse_numbers.h: Use integral_constant to remove
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duplication and simplify.
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* testsuite/20_util/duration/literals/61166.cc: New.
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2014-05-15 Jonathan Wakely <jwakely@redhat.com>
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2014-05-15 Jonathan Wakely <jwakely@redhat.com>
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PR libstdc++/60326
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PR libstdc++/60326
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@ -27,8 +27,8 @@
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* Do not attempt to use it directly. @headername{chrono}
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* Do not attempt to use it directly. @headername{chrono}
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*/
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*/
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#ifndef _PARSE_NUMBERS_H
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#ifndef _GLIBCXX_PARSE_NUMBERS_H
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#define _PARSE_NUMBERS_H 1
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#define _GLIBCXX_PARSE_NUMBERS_H 1
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#pragma GCC system_header
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#pragma GCC system_header
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@ -36,289 +36,181 @@
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#if __cplusplus > 201103L
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#if __cplusplus > 201103L
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#include <limits>
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namespace std _GLIBCXX_VISIBILITY(default)
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namespace std _GLIBCXX_VISIBILITY(default)
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{
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{
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_GLIBCXX_BEGIN_NAMESPACE_VERSION
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_GLIBCXX_BEGIN_NAMESPACE_VERSION
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namespace __parse_int {
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namespace __parse_int
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{
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template<unsigned _Base, char _Dig>
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template<unsigned _Base, char _Dig>
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struct _Digit;
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struct _Digit;
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template<unsigned _Base>
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template<unsigned _Base>
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struct _Digit<_Base, '0'>
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struct _Digit<_Base, '0'> : integral_constant<unsigned, 0>
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{
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{
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static constexpr bool valid{true};
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using __valid = true_type;
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static constexpr unsigned value{0};
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};
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};
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template<unsigned _Base>
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template<unsigned _Base>
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struct _Digit<_Base, '1'>
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struct _Digit<_Base, '1'> : integral_constant<unsigned, 1>
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{
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{
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static constexpr bool valid{true};
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using __valid = true_type;
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static constexpr unsigned value{1};
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};
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template<unsigned _Base, unsigned _Val>
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struct _Digit_impl : integral_constant<unsigned, _Val>
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{
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static_assert(_Base > _Val, "invalid digit");
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using __valid = true_type;
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};
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};
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template<unsigned _Base>
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template<unsigned _Base>
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struct _Digit<_Base, '2'>
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struct _Digit<_Base, '2'> : _Digit_impl<_Base, 2>
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{
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{ };
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static_assert(_Base > 2, "invalid digit");
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static constexpr bool valid{true};
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static constexpr unsigned value{2};
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};
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template<unsigned _Base>
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template<unsigned _Base>
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struct _Digit<_Base, '3'>
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struct _Digit<_Base, '3'> : _Digit_impl<_Base, 3>
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{
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{ };
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static_assert(_Base > 3, "invalid digit");
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static constexpr bool valid{true};
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static constexpr unsigned value{3};
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};
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template<unsigned _Base>
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template<unsigned _Base>
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struct _Digit<_Base, '4'>
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struct _Digit<_Base, '4'> : _Digit_impl<_Base, 4>
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{
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{ };
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static_assert(_Base > 4, "invalid digit");
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static constexpr bool valid{true};
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static constexpr unsigned value{4};
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};
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template<unsigned _Base>
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template<unsigned _Base>
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struct _Digit<_Base, '5'>
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struct _Digit<_Base, '5'> : _Digit_impl<_Base, 5>
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{
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{ };
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static_assert(_Base > 5, "invalid digit");
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static constexpr bool valid{true};
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static constexpr unsigned value{5};
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};
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template<unsigned _Base>
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template<unsigned _Base>
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struct _Digit<_Base, '6'>
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struct _Digit<_Base, '6'> : _Digit_impl<_Base, 6>
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{
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{ };
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static_assert(_Base > 6, "invalid digit");
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static constexpr bool valid{true};
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static constexpr unsigned value{6};
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};
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template<unsigned _Base>
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template<unsigned _Base>
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struct _Digit<_Base, '7'>
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struct _Digit<_Base, '7'> : _Digit_impl<_Base, 7>
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{
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{ };
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static_assert(_Base > 7, "invalid digit");
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static constexpr bool valid{true};
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static constexpr unsigned value{7};
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};
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template<unsigned _Base>
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template<unsigned _Base>
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struct _Digit<_Base, '8'>
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struct _Digit<_Base, '8'> : _Digit_impl<_Base, 8>
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{
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{ };
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static_assert(_Base > 8, "invalid digit");
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static constexpr bool valid{true};
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static constexpr unsigned value{8};
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};
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template<unsigned _Base>
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template<unsigned _Base>
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struct _Digit<_Base, '9'>
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struct _Digit<_Base, '9'> : _Digit_impl<_Base, 9>
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{
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{ };
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static_assert(_Base > 9, "invalid digit");
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static constexpr bool valid{true};
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static constexpr unsigned value{9};
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};
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template<unsigned _Base>
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template<unsigned _Base>
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struct _Digit<_Base, 'a'>
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struct _Digit<_Base, 'a'> : _Digit_impl<_Base, 0xa>
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{
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{ };
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static_assert(_Base > 0xa, "invalid digit");
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static constexpr bool valid{true};
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static constexpr unsigned value{0xa};
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};
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template<unsigned _Base>
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template<unsigned _Base>
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struct _Digit<_Base, 'A'>
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struct _Digit<_Base, 'A'> : _Digit_impl<_Base, 0xa>
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{
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{ };
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static_assert(_Base > 0xa, "invalid digit");
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static constexpr bool valid{true};
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static constexpr unsigned value{0xa};
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};
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template<unsigned _Base>
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template<unsigned _Base>
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struct _Digit<_Base, 'b'>
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struct _Digit<_Base, 'b'> : _Digit_impl<_Base, 0xb>
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{
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{ };
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static_assert(_Base > 0xb, "invalid digit");
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static constexpr bool valid{true};
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static constexpr unsigned value{0xb};
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};
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template<unsigned _Base>
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template<unsigned _Base>
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struct _Digit<_Base, 'B'>
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struct _Digit<_Base, 'B'> : _Digit_impl<_Base, 0xb>
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{
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{ };
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static_assert(_Base > 0xb, "invalid digit");
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static constexpr bool valid{true};
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static constexpr unsigned value{0xb};
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};
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template<unsigned _Base>
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template<unsigned _Base>
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struct _Digit<_Base, 'c'>
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struct _Digit<_Base, 'c'> : _Digit_impl<_Base, 0xc>
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{
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{ };
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static_assert(_Base > 0xc, "invalid digit");
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static constexpr bool valid{true};
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static constexpr unsigned value{0xc};
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};
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template<unsigned _Base>
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template<unsigned _Base>
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struct _Digit<_Base, 'C'>
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struct _Digit<_Base, 'C'> : _Digit_impl<_Base, 0xc>
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{
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{ };
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static_assert(_Base > 0xc, "invalid digit");
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static constexpr bool valid{true};
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static constexpr unsigned value{0xc};
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};
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template<unsigned _Base>
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template<unsigned _Base>
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struct _Digit<_Base, 'd'>
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struct _Digit<_Base, 'd'> : _Digit_impl<_Base, 0xd>
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{
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{ };
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static_assert(_Base > 0xd, "invalid digit");
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static constexpr bool valid{true};
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static constexpr unsigned value{0xd};
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};
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template<unsigned _Base>
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template<unsigned _Base>
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struct _Digit<_Base, 'D'>
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struct _Digit<_Base, 'D'> : _Digit_impl<_Base, 0xd>
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{
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{ };
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static_assert(_Base > 0xd, "invalid digit");
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static constexpr bool valid{true};
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static constexpr unsigned value{0xd};
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};
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template<unsigned _Base>
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template<unsigned _Base>
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struct _Digit<_Base, 'e'>
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struct _Digit<_Base, 'e'> : _Digit_impl<_Base, 0xe>
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{
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{ };
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static_assert(_Base > 0xe, "invalid digit");
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static constexpr bool valid{true};
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static constexpr unsigned value{0xe};
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};
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template<unsigned _Base>
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template<unsigned _Base>
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struct _Digit<_Base, 'E'>
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struct _Digit<_Base, 'E'> : _Digit_impl<_Base, 0xe>
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{
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{ };
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static_assert(_Base > 0xe, "invalid digit");
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static constexpr bool valid{true};
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static constexpr unsigned value{0xe};
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};
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template<unsigned _Base>
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template<unsigned _Base>
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struct _Digit<_Base, 'f'>
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struct _Digit<_Base, 'f'> : _Digit_impl<_Base, 0xf>
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{
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{ };
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static_assert(_Base > 0xf, "invalid digit");
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static constexpr bool valid{true};
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static constexpr unsigned value{0xf};
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};
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template<unsigned _Base>
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template<unsigned _Base>
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struct _Digit<_Base, 'F'>
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struct _Digit<_Base, 'F'> : _Digit_impl<_Base, 0xf>
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{
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{ };
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static_assert(_Base > 0xf, "invalid digit");
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static constexpr bool valid{true};
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static constexpr unsigned value{0xf};
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};
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// Digit separator
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// Digit separator
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template<unsigned _Base>
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template<unsigned _Base>
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struct _Digit<_Base, '\''>
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struct _Digit<_Base, '\''> : integral_constant<unsigned, 0>
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{
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{
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static constexpr bool valid{false};
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using __valid = false_type;
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static constexpr unsigned value{0};
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};
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//------------------------------------------------------------------------------
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template<unsigned _Base, char _Dig, char... _Digs>
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struct _Digits_help
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{
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static constexpr unsigned
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value{_Digit<_Base, _Dig>::valid ?
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1U + _Digits_help<_Base, _Digs...>::value :
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_Digits_help<_Base, _Digs...>::value};
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};
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template<unsigned _Base, char _Dig>
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struct _Digits_help<_Base, _Dig>
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{
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static constexpr unsigned value{_Digit<_Base, _Dig>::valid ? 1U : 0U};
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};
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template<unsigned _Base, char... _Digs>
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struct _Digits
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{
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static constexpr unsigned value{_Digits_help<_Base, _Digs...>::value};
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};
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template<unsigned _Base>
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struct _Digits<_Base>
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{
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static constexpr unsigned value{0U};
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};
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};
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//------------------------------------------------------------------------------
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//------------------------------------------------------------------------------
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template<unsigned long long _Val>
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using __ull_constant = integral_constant<unsigned long long, _Val>;
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template<unsigned _Base, char _Dig, char... _Digs>
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template<unsigned _Base, char _Dig, char... _Digs>
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struct _Power_help
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struct _Power_help
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{
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{
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static constexpr unsigned
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using __next = typename _Power_help<_Base, _Digs...>::type;
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value{_Digit<_Base, _Dig>::valid ?
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using __valid_digit = typename _Digit<_Base, _Dig>::__valid;
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_Base * _Power_help<_Base, _Digs...>::value :
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using type
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_Power_help<_Base, _Digs...>::value};
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= __ull_constant<__next::value * (__valid_digit{} ? _Base : 1ULL)>;
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};
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};
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template<unsigned _Base, char _Dig>
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template<unsigned _Base, char _Dig>
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struct _Power_help<_Base, _Dig>
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struct _Power_help<_Base, _Dig>
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{
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{
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static constexpr unsigned value{_Digit<_Base, _Dig>::valid ? 1U : 0U};
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using __valid_digit = typename _Digit<_Base, _Dig>::__valid;
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using type = __ull_constant<__valid_digit::value>;
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};
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};
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template<unsigned _Base, char... _Digs>
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template<unsigned _Base, char... _Digs>
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struct _Power
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struct _Power : _Power_help<_Base, _Digs...>::type
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{
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{ };
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static constexpr unsigned value{_Power_help<_Base, _Digs...>::value};
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};
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template<unsigned _Base>
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template<unsigned _Base>
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struct _Power<_Base>
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struct _Power<_Base> : __ull_constant<0>
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{
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{ };
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static constexpr unsigned value{0U};
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};
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//------------------------------------------------------------------------------
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//------------------------------------------------------------------------------
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template<unsigned _Base, unsigned _Pow, char _Dig, char... _Digs>
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template<unsigned _Base, unsigned long long _Pow, char _Dig, char... _Digs>
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struct _Number_help
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struct _Number_help
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{
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{
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static constexpr unsigned
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using __digit = _Digit<_Base, _Dig>;
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value{_Digit<_Base, _Dig>::valid ?
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using __valid_digit = typename __digit::__valid;
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_Pow * _Digit<_Base, _Dig>::value
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using __next = _Number_help<_Base,
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+ _Number_help<_Base, _Pow / _Base, _Digs...>::value :
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_Pow / (_Base * __valid_digit::value),
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_Number_help<_Base, _Pow, _Digs...>::value};
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_Digs...>;
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using type = __ull_constant<_Pow * __digit::value + __next::type::value>;
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};
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};
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template<unsigned _Base, unsigned _Pow, char _Dig>
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template<unsigned _Base, unsigned long long _Pow, char _Dig>
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struct _Number_help<_Base, _Pow, _Dig>
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struct _Number_help<_Base, _Pow, _Dig>
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{
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{
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//static_assert(_Pow == 1U, "power should be one");
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//static_assert(_Pow == 1U, "power should be one");
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static constexpr unsigned
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using type = __ull_constant<_Digit<_Base, _Dig>::value>;
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value{_Digit<_Base, _Dig>::valid ? _Digit<_Base, _Dig>::value : 0U};
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};
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};
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template<unsigned _Base, char... _Digs>
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template<unsigned _Base, char... _Digs>
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struct _Number
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struct _Number
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{
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: _Number_help<_Base, _Power<_Base, _Digs...>::value, _Digs...>::type
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static constexpr unsigned
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{ };
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value{_Number_help<_Base, _Power<_Base, _Digs...>::value,
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_Digs...>::value};
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};
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template<unsigned _Base>
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template<unsigned _Base>
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struct _Number<_Base>
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struct _Number<_Base>
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{
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: __ull_constant<0>
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static constexpr unsigned value{0U};
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{ };
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};
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//------------------------------------------------------------------------------
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//------------------------------------------------------------------------------
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// This _Parse_int is the same 'level' as the old _Base_dispatch.
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// This _Parse_int is the same 'level' as the old _Base_dispatch.
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@ -328,84 +220,62 @@ namespace __parse_int {
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|
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template<char... _Digs>
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template<char... _Digs>
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struct _Parse_int<'0', 'b', _Digs...>
|
struct _Parse_int<'0', 'b', _Digs...>
|
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{
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: _Number<2U, _Digs...>::type
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static constexpr unsigned long long
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{ };
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value{_Number<2U, _Digs...>::value};
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};
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template<char... _Digs>
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template<char... _Digs>
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struct _Parse_int<'0', 'B', _Digs...>
|
struct _Parse_int<'0', 'B', _Digs...>
|
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{
|
: _Number<2U, _Digs...>::type
|
||||||
static constexpr unsigned long long
|
{ };
|
||||||
value{_Number<2U, _Digs...>::value};
|
|
||||||
};
|
|
||||||
|
|
||||||
template<char... _Digs>
|
template<char... _Digs>
|
||||||
struct _Parse_int<'0', 'x', _Digs...>
|
struct _Parse_int<'0', 'x', _Digs...>
|
||||||
{
|
: _Number<16U, _Digs...>::type
|
||||||
static constexpr unsigned long long
|
{ };
|
||||||
value{_Number<16U, _Digs...>::value};
|
|
||||||
};
|
|
||||||
|
|
||||||
template<char... _Digs>
|
template<char... _Digs>
|
||||||
struct _Parse_int<'0', 'X', _Digs...>
|
struct _Parse_int<'0', 'X', _Digs...>
|
||||||
{
|
: _Number<16U, _Digs...>::type
|
||||||
static constexpr unsigned long long
|
{ };
|
||||||
value{_Number<16U, _Digs...>::value};
|
|
||||||
};
|
|
||||||
|
|
||||||
template<char... _Digs>
|
template<char... _Digs>
|
||||||
struct _Parse_int<'0', _Digs...>
|
struct _Parse_int<'0', _Digs...>
|
||||||
{
|
: _Number<8U, _Digs...>::type
|
||||||
static constexpr unsigned long long
|
{ };
|
||||||
value{_Number<8U, _Digs...>::value};
|
|
||||||
};
|
|
||||||
|
|
||||||
template<char... _Digs>
|
template<char... _Digs>
|
||||||
struct _Parse_int
|
struct _Parse_int
|
||||||
{
|
: _Number<10U, _Digs...>::type
|
||||||
static constexpr unsigned long long
|
{ };
|
||||||
value{_Number<10U, _Digs...>::value};
|
|
||||||
};
|
|
||||||
|
|
||||||
} // namespace __parse_int
|
} // namespace __parse_int
|
||||||
|
|
||||||
|
|
||||||
namespace __select_int {
|
namespace __select_int
|
||||||
|
{
|
||||||
template<unsigned long long _Val, typename... _Ints>
|
template<unsigned long long _Val, typename... _Ints>
|
||||||
struct _Select_int_base;
|
struct _Select_int_base;
|
||||||
|
|
||||||
template<unsigned long long _Val, typename _IntType, typename... _Ints>
|
template<unsigned long long _Val, typename _IntType, typename... _Ints>
|
||||||
struct _Select_int_base<_Val, _IntType, _Ints...>
|
struct _Select_int_base<_Val, _IntType, _Ints...>
|
||||||
: integral_constant
|
: conditional_t<(_Val <= std::numeric_limits<_IntType>::max()),
|
||||||
<
|
integral_constant<_IntType, _Val>,
|
||||||
typename conditional
|
_Select_int_base<_Val, _Ints...>>
|
||||||
<
|
|
||||||
_Val <= static_cast<unsigned long long>
|
|
||||||
(std::numeric_limits<_IntType>::max()),
|
|
||||||
_IntType,
|
|
||||||
typename _Select_int_base<_Val, _Ints...>::value_type
|
|
||||||
>::type,
|
|
||||||
_Val
|
|
||||||
>
|
|
||||||
{ };
|
{ };
|
||||||
|
|
||||||
template<unsigned long long _Val>
|
template<unsigned long long _Val>
|
||||||
struct _Select_int_base<_Val> : integral_constant<unsigned long long, _Val>
|
struct _Select_int_base<_Val>
|
||||||
{ };
|
{ };
|
||||||
|
|
||||||
template<char... _Digs>
|
template<char... _Digs>
|
||||||
struct _Select_int
|
using _Select_int = typename _Select_int_base<
|
||||||
: _Select_int_base<
|
|
||||||
__parse_int::_Parse_int<_Digs...>::value,
|
__parse_int::_Parse_int<_Digs...>::value,
|
||||||
unsigned char,
|
unsigned char,
|
||||||
unsigned short,
|
unsigned short,
|
||||||
unsigned int,
|
unsigned int,
|
||||||
unsigned long,
|
unsigned long,
|
||||||
unsigned long long
|
unsigned long long
|
||||||
>
|
>::type;
|
||||||
{ };
|
|
||||||
|
|
||||||
} // namespace __select_int
|
} // namespace __select_int
|
||||||
|
|
||||||
|
|
@ -414,4 +284,4 @@ _GLIBCXX_END_NAMESPACE_VERSION
|
||||||
|
|
||||||
#endif // __cplusplus > 201103L
|
#endif // __cplusplus > 201103L
|
||||||
|
|
||||||
#endif // _PARSE_NUMBERS_H
|
#endif // _GLIBCXX_PARSE_NUMBERS_H
|
||||||
|
|
|
||||||
|
|
@ -0,0 +1,39 @@
|
||||||
|
// { dg-do run }
|
||||||
|
// { dg-options "-std=gnu++1y" }
|
||||||
|
|
||||||
|
// Copyright (C) 2014 Free Software Foundation, Inc.
|
||||||
|
//
|
||||||
|
// This file is part of the GNU ISO C++ Library. This library is free
|
||||||
|
// software; you can redistribute it and/or modify it under the
|
||||||
|
// terms of the GNU General Public License as published by the
|
||||||
|
// Free Software Foundation; either version 3, or (at your option)
|
||||||
|
// any later version.
|
||||||
|
|
||||||
|
// This library is distributed in the hope that it will be useful,
|
||||||
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
// GNU General Public License for more details.
|
||||||
|
|
||||||
|
// You should have received a copy of the GNU General Public License along
|
||||||
|
// with this library; see the file COPYING3. If not see
|
||||||
|
// <http://www.gnu.org/licenses/>.
|
||||||
|
|
||||||
|
// libstdc++/61166
|
||||||
|
|
||||||
|
#include <chrono>
|
||||||
|
#include <testsuite_hooks.h>
|
||||||
|
|
||||||
|
void
|
||||||
|
test01()
|
||||||
|
{
|
||||||
|
using namespace std::literals::chrono_literals;
|
||||||
|
|
||||||
|
// std::numeric_limits<unsigned>::max() == 4294967295
|
||||||
|
VERIFY( (429496729510h).count() == 429496729510 );
|
||||||
|
}
|
||||||
|
|
||||||
|
int
|
||||||
|
main()
|
||||||
|
{
|
||||||
|
test01();
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue