diff options
Diffstat (limited to 'test/SemaCXX')
| -rw-r--r-- | test/SemaCXX/constexpr-string.cpp | 21 | ||||
| -rw-r--r-- | test/SemaCXX/cxx11-default-member-initializers.cpp | 14 |
2 files changed, 35 insertions, 0 deletions
diff --git a/test/SemaCXX/constexpr-string.cpp b/test/SemaCXX/constexpr-string.cpp index 944038bc163a..fba05e508ab7 100644 --- a/test/SemaCXX/constexpr-string.cpp +++ b/test/SemaCXX/constexpr-string.cpp @@ -166,6 +166,27 @@ namespace StrchrEtc { static_assert(__builtin_memchr(nullptr, 'x', 3) == nullptr); // expected-error {{not an integral constant}} expected-note {{dereferenced null}} static_assert(__builtin_memchr(nullptr, 'x', 0) == nullptr); // FIXME: Should we reject this? + static_assert(__builtin_char_memchr(kStr, 'a', 0) == nullptr); + static_assert(__builtin_char_memchr(kStr, 'a', 1) == kStr); + static_assert(__builtin_char_memchr(kStr, '\0', 5) == nullptr); + static_assert(__builtin_char_memchr(kStr, '\0', 6) == kStr + 5); + static_assert(__builtin_char_memchr(kStr, '\xff', 8) == kStr + 4); + static_assert(__builtin_char_memchr(kStr, '\xff' + 256, 8) == kStr + 4); + static_assert(__builtin_char_memchr(kStr, '\xff' - 256, 8) == kStr + 4); + static_assert(__builtin_char_memchr(kFoo, 'x', 3) == nullptr); + static_assert(__builtin_char_memchr(kFoo, 'x', 4) == nullptr); // expected-error {{not an integral constant}} expected-note {{dereferenced one-past-the-end}} + static_assert(__builtin_char_memchr(nullptr, 'x', 3) == nullptr); // expected-error {{not an integral constant}} expected-note {{dereferenced null}} + static_assert(__builtin_char_memchr(nullptr, 'x', 0) == nullptr); // FIXME: Should we reject this? + + static_assert(*__builtin_char_memchr(kStr, '\xff', 8) == '\xff'); + constexpr bool char_memchr_mutable() { + char buffer[] = "mutable"; + *__builtin_char_memchr(buffer, 't', 8) = 'r'; + *__builtin_char_memchr(buffer, 'm', 8) = 'd'; + return __builtin_strcmp(buffer, "durable") == 0; + } + static_assert(char_memchr_mutable()); + constexpr bool a = !strchr("hello", 'h'); // expected-error {{constant expression}} expected-note {{non-constexpr function 'strchr' cannot be used in a constant expression}} constexpr bool b = !memchr("hello", 'h', 3); // expected-error {{constant expression}} expected-note {{non-constexpr function 'memchr' cannot be used in a constant expression}} } diff --git a/test/SemaCXX/cxx11-default-member-initializers.cpp b/test/SemaCXX/cxx11-default-member-initializers.cpp new file mode 100644 index 000000000000..9353e633fafb --- /dev/null +++ b/test/SemaCXX/cxx11-default-member-initializers.cpp @@ -0,0 +1,14 @@ +// RUN: %clang_cc1 -std=c++11 -verify %s -pedantic + +namespace PR31692 { + struct A { + struct X { int n = 0; } x; + // Trigger construction of X() from a SFINAE context. This must not mark + // any part of X as invalid. + static_assert(!__is_constructible(X), ""); + // Check that X::n is not marked invalid. + double &r = x.n; // expected-error {{non-const lvalue reference to type 'double' cannot bind to a value of unrelated type 'int'}} + }; + // A::X can now be default-constructed. + static_assert(__is_constructible(A::X), ""); +} |