From 4a559e91b130450fa1fe3148468bfc8ef3cdf71e Mon Sep 17 00:00:00 2001 From: Jonathan Wakely Date: Thu, 30 Aug 2018 13:24:06 +0100 Subject: [PATCH] Fix __gnu_cxx::_Pointer_adapter for long long arithmetic * include/ext/pointer.h (_Pointer_adapter): Define operators for pointer arithmetic using long long offsets. * testsuite/ext/ext_pointer/1.cc: Test pointer arithmetic using long long values. From-SVN: r263976 --- libstdc++-v3/ChangeLog | 7 +++++++ libstdc++-v3/include/ext/pointer.h | 4 ++++ libstdc++-v3/testsuite/ext/ext_pointer/1.cc | 14 ++++++++++++++ 3 files changed, 25 insertions(+) diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog index 477784624b6..ccb2896701c 100644 --- a/libstdc++-v3/ChangeLog +++ b/libstdc++-v3/ChangeLog @@ -1,3 +1,10 @@ +2018-08-30 Jonathan Wakely + + * include/ext/pointer.h (_Pointer_adapter): Define operators for + pointer arithmetic using long long offsets. + * testsuite/ext/ext_pointer/1.cc: Test pointer arithmetic using + long long values. + 2018-08-29 Jonathan Wakely PR libstdc++/31413 diff --git a/libstdc++-v3/include/ext/pointer.h b/libstdc++-v3/include/ext/pointer.h index ee5c30dfa64..1e89c3779af 100644 --- a/libstdc++-v3/include/ext/pointer.h +++ b/libstdc++-v3/include/ext/pointer.h @@ -441,6 +441,10 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION _CXX_POINTER_ARITH_OPERATOR_SET(unsigned int); _CXX_POINTER_ARITH_OPERATOR_SET(long); _CXX_POINTER_ARITH_OPERATOR_SET(unsigned long); +#ifdef _GLIBCXX_USE_LONG_LONG + _CXX_POINTER_ARITH_OPERATOR_SET(long long); + _CXX_POINTER_ARITH_OPERATOR_SET(unsigned long long); +#endif // Mathematical Manipulators inline _Pointer_adapter& diff --git a/libstdc++-v3/testsuite/ext/ext_pointer/1.cc b/libstdc++-v3/testsuite/ext/ext_pointer/1.cc index 351a9775ec8..bbedc43b12e 100644 --- a/libstdc++-v3/testsuite/ext/ext_pointer/1.cc +++ b/libstdc++-v3/testsuite/ext/ext_pointer/1.cc @@ -180,11 +180,25 @@ void test04() { VERIFY(bPtr3 == aPtr); } +// Check that long long values can be used for pointer arithmetic. +void test05() +{ + A a[2] = { 1, 2 }; + A_pointer p = a; + A_pointer q = p + 0ull; + VERIFY( p == q ); + q += 0ll; + VERIFY( p == q ); + q += 1ll; + VERIFY( q->i == p[1ll].i ); +} + int main() { test01(); test02(); test03(); test04(); + test05(); return 0; }