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Adjusted the check for C++20 on gcc 10.

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The compiler defines __cplusplus to a non-standard value less than 202002
in C++20 mode.
This commit is contained in:
Andrey Semashev 2020-05-24 00:29:51 +03:00
parent d7ad43a925
commit 72f0ebe8d0
1 changed files with 3 additions and 1 deletions
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4
test/iterator_traits_test.cpp
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@ -23,6 +23,7 @@
#include <boost/type_traits/is_same.hpp>
#include <boost/operators.hpp>
#include <boost/static_assert.hpp>
#include <boost/config.hpp>
#include <iterator>
#include <vector>
#include <list>
@ -153,7 +154,8 @@ input_iterator_test<std::istream_iterator<int>, int, std::ptrdiff_t, int*, int&,
istream_iterator_test;
// C++20 changed ostream_iterator::difference_type to ptrdiff_t.
#if __cplusplus >= 202002L && (\
// Note: gcc 10.1 defines __cplusplus to a value less than 202002L, but greater than 201703L in C++20 mode.
#if __cplusplus > 201703L && (\
(defined(BOOST_LIBSTDCXX_VERSION) && BOOST_LIBSTDCXX_VERSION >= 100100) \
)
#define BOOST_ITERATOR_CXX20_OSTREAM_ITERATOR