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all: cosmetic cleanups

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This commit is contained in:
Markus F.X.J. Oberhumer
2023-09-18 15:19:37 +02:00
parent 57ad6bc37d
commit 06675acc67
21 changed files with 174 additions and 70 deletions
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src/check/dt_xspan.cpp
+83 -1
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@@ -806,7 +806,7 @@ TEST_CASE("PtrOrSpan int") {
namespace {
template <class T>
__acc_static_noinline int foo(T p) {
static noinline int foo(T p) {
unsigned r = 0;
r += *p++;
r += *++p;
@@ -849,4 +849,86 @@ TEST_CASE("Span codegen") {
#endif // WITH_XSPAN >= 2
/*************************************************************************
// misc
**************************************************************************/
namespace {
template <class T>
struct PointerTraits {
typedef typename std::add_lvalue_reference<T>::type reference;
typedef
typename std::add_lvalue_reference<typename std::add_const<T>::type>::type const_reference;
typedef typename std::add_pointer<T>::type pointer;
typedef typename std::add_pointer<typename std::add_const<T>::type>::type const_pointer;
};
} // namespace
#if __cplusplus >= 201103L
TEST_CASE("decltype integral constants") {
static_assert((std::is_same<decltype(0), int>::value), "");
static_assert((std::is_same<decltype(0u), unsigned>::value), "");
static_assert((std::is_same<decltype(0l), long>::value), "");
static_assert((std::is_same<decltype(0ul), unsigned long>::value), "");
static_assert((std::is_same<decltype(0ll), long long>::value), "");
static_assert((std::is_same<decltype(0ull), unsigned long long>::value), "");
static_assert((std::is_same<decltype((char) 0), char>::value), "");
static_assert((std::is_same<decltype((short) 0), short>::value), "");
static_assert((std::is_same<decltype((long) 0), long>::value), "");
static_assert((std::is_same<decltype((long long) 0), long long>::value), "");
static_assert((std::is_same<decltype(char(0)), char>::value), "");
static_assert((std::is_same<decltype(short(0)), short>::value), "");
static_assert((std::is_same<decltype(long(0)), long>::value), "");
}
TEST_CASE("decltype pointer") {
int dummy = 0;
int *p = &dummy;
const int *c = &dummy;
static_assert((std::is_same<decltype(p - p), std::ptrdiff_t>::value), "");
static_assert((std::is_same<decltype(c - c), std::ptrdiff_t>::value), "");
static_assert((std::is_same<decltype(p - c), std::ptrdiff_t>::value), "");
static_assert((std::is_same<decltype(c - p), std::ptrdiff_t>::value), "");
typedef PointerTraits<int> TInt;
typedef PointerTraits<const int> TConstInt;
static_assert((std::is_same<int *, TInt::pointer>::value), "");
static_assert((std::is_same<const int *, TInt::const_pointer>::value), "");
static_assert((std::is_same<const int *, TConstInt::pointer>::value), "");
static_assert((std::is_same<const int *, TConstInt::const_pointer>::value), "");
//
static_assert((std::is_same<decltype(p), TInt::pointer>::value), "");
static_assert((std::is_same<decltype(c), TInt::const_pointer>::value), "");
static_assert((std::is_same<decltype(c), TConstInt::pointer>::value), "");
static_assert((std::is_same<decltype(p + 1), TInt::pointer>::value), "");
static_assert((std::is_same<decltype(c + 1), TInt::const_pointer>::value), "");
static_assert((std::is_same<decltype(c + 1), TConstInt::pointer>::value), "");
static_assert((std::is_same<decltype(c + 1), TConstInt::const_pointer>::value), "");
static_assert((std::is_same<decltype(c + 1), const int *>::value), "");
// dereference
static_assert((std::is_same<decltype(*p), TInt::reference>::value), "");
static_assert((std::is_same<decltype(*c), TInt::const_reference>::value), "");
#if 0
// this works, but avoid clang warnings:
// "Expression with side effects has no effect in an unevaluated context"
static_assert((std::is_same<decltype(*p++), TInt::reference>::value), "");
static_assert((std::is_same<decltype(*++p), TInt::reference>::value), "");
static_assert((std::is_same<decltype(*c++), TInt::const_reference>::value), "");
static_assert((std::is_same<decltype(*c++), TConstInt::reference>::value), "");
static_assert((std::is_same<decltype(*c++), TConstInt::const_reference>::value), "");
static_assert((std::is_same<decltype(*++c), TInt::const_reference>::value), "");
static_assert((std::is_same<decltype(*++c), TConstInt::reference>::value), "");
static_assert((std::is_same<decltype(*++c), TConstInt::const_reference>::value), "");
#endif
// array access
static_assert((std::is_same<decltype(p[0]), TInt::reference>::value), "");
static_assert((std::is_same<decltype(c[0]), TInt::const_reference>::value), "");
static_assert((std::is_same<decltype(c[0]), TConstInt::reference>::value), "");
static_assert((std::is_same<decltype(c[0]), TConstInt::const_reference>::value), "");
UNUSED(p);
UNUSED(c);
}
#endif // __cplusplus >= 201103L
/* vim:set ts=4 sw=4 et: */