From: Jonathan Wakely Date: Fri, 12 Oct 2018 12:51:34 +0000 (+0100) Subject: Fix __gnu_cxx::_Pointer_adapter for long long arithmetic X-Git-Tag: releases/gcc-7.4.0~114 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e1bb6d27251ac4af92e0d98ca58341bd4f0cee30;p=thirdparty%2Fgcc.git Fix __gnu_cxx::_Pointer_adapter for long long arithmetic Backport from mainline 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. From-SVN: r265094 --- diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog index e4298de17bf6..baa299050691 100644 --- a/libstdc++-v3/ChangeLog +++ b/libstdc++-v3/ChangeLog @@ -1,3 +1,13 @@ +2018-10-12 Jonathan Wakely + + Backport from mainline + 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. + 2018-10-12 Jonathan Wakely Backport from mainline diff --git a/libstdc++-v3/include/ext/pointer.h b/libstdc++-v3/include/ext/pointer.h index 8432da0d2a46..3924cdd98b5f 100644 --- a/libstdc++-v3/include/ext/pointer.h +++ b/libstdc++-v3/include/ext/pointer.h @@ -437,6 +437,10 @@ _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 096a15fb6715..56560a001b30 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; }