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A object pointer value is only a constant expression if it points to an object with static storage duration.

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This commit is contained in:
Krystian Stasiowski
2019-12-16 19:22:41 -05:00
parent 68bb317c2a
commit 7c8ad32ff9
2 changed files with 21 additions and 8 deletions
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8
include/boost/static_string/detail/static_string.hpp
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@ -76,14 +76,14 @@ public:
CharT* CharT*
data_impl() noexcept data_impl() noexcept
{ {
return +data_; return data_;
} }
BOOST_STATIC_STRING_CPP14_CONSTEXPR BOOST_STATIC_STRING_CPP14_CONSTEXPR
CharT const* CharT const*
data_impl() const noexcept data_impl() const noexcept
{ {
return +data_; return data_;
} }
BOOST_STATIC_STRING_CPP11_CONSTEXPR BOOST_STATIC_STRING_CPP11_CONSTEXPR
@ -171,14 +171,14 @@ public:
CharT* CharT*
data_impl() noexcept data_impl() noexcept
{ {
return +data_; return data_;
} }
BOOST_STATIC_STRING_CPP14_CONSTEXPR BOOST_STATIC_STRING_CPP14_CONSTEXPR
CharT const* CharT const*
data_impl() const noexcept data_impl() const noexcept
{ {
return +data_; return data_;
} }
BOOST_STATIC_STRING_CPP11_CONSTEXPR BOOST_STATIC_STRING_CPP11_CONSTEXPR

21
test/static_string.cpp
View File

@ -6932,6 +6932,23 @@ constexpr bool testConstexpr()
#elif __cplusplus >= 201703L #elif __cplusplus >= 201703L
// c++17 constexpr tests // c++17 constexpr tests
using S = basic_static_string<16, char, cxper_char_traits>;
// ctor
{
constexpr S s1;
constexpr S s2(1, 'a');
constexpr S s3("");
constexpr S s4("", 1);
constexpr S s5 = s1;
constexpr auto b = s1.size();
constexpr auto c = s1.empty();
constexpr auto d = s1.max_size();
constexpr auto e = s1.capacity();
constexpr auto f = s1.length();
constexpr auto g = s2.front();
constexpr auto h = s2.back();
}
#elif __cplusplus >= 201402L #elif __cplusplus >= 201402L
// c++14 constexpr tests // c++14 constexpr tests
@ -6951,10 +6968,6 @@ constexpr bool testConstexpr()
constexpr auto f = s1.length(); constexpr auto f = s1.length();
constexpr auto g = s2.front(); constexpr auto g = s2.front();
constexpr auto h = s2.back(); constexpr auto h = s2.back();
constexpr auto k = s2.begin();
constexpr auto l = s2.end();
constexpr auto i = s2.data();
constexpr auto j = s2.c_str();
} }
//constexpr auto g = s1.assign(1, '1'); //constexpr auto g = s1.assign(1, '1');