| //===----------------------------------------------------------------------===// |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // UNSUPPORTED: c++03, c++11, c++14, c++17 |
| // UNSUPPORTED: libcpp-has-no-incomplete-format |
| |
| // TODO FMT This test should not require std::to_chars(floating-point) |
| // XFAIL: availability-fp_to_chars-missing |
| |
| // Basic test to validate ill-formed code is properly detected. |
| |
| // <format> |
| |
| // template<class... Args> |
| // string format(format-string<Args...> fmt, const Args&... args); |
| // template<class... Args> |
| // wstring format(wformat-string<Args...> fmt, const Args&... args); |
| |
| #include <format> |
| |
| #include "test_macros.h" |
| |
| // clang-format off |
| |
| void f() { |
| std::format("{"); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
| // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
| |
| std::format("}"); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
| // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
| |
| std::format("{}"); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
| // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
| |
| std::format("{0}"); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
| // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
| |
| std::format("{:-}", "Forty-two"); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
| // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
| |
| std::format("{:#}", "Forty-two"); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
| // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
| |
| std::format("{:L}", "Forty-two"); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
| // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
| |
| std::format("{0:{0}}", "Forty-two"); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
| // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
| |
| std::format("{:.42d}", "Forty-two"); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
| // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
| |
| std::format("{:d}", "Forty-two"); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
| // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
| |
| #ifndef TEST_HAS_NO_WIDE_CHARACTERS |
| std::format(L"{"); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
| // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
| |
| std::format(L"}"); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
| // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
| |
| std::format(L"{}"); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
| // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
| |
| std::format(L"{0}"); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
| // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
| |
| std::format(L"{:-}", L"Forty-two"); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
| // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
| |
| std::format(L"{:#}", L"Forty-two"); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
| // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
| |
| std::format(L"{:L}", L"Forty-two"); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
| // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
| |
| std::format(L"{0:{0}}", L"Forty-two"); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
| // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
| |
| std::format(L"{:.42d}", L"Forty-two"); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
| // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
| |
| std::format(L"{:d}", L"Forty-two"); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
| // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
| #endif |
| } |
| |
| struct tiny { |
| int bit : 1; |
| }; |
| |
| void P2418() |
| { |
| auto t = tiny{}; |
| std::format("{}", t.bit); // expected-error{{non-const reference cannot bind to bit-field 'bit'}} |
| |
| #ifndef TEST_HAS_NO_WIDE_CHARACTERS |
| std::format(L"{}", t.bit); // expected-error{{non-const reference cannot bind to bit-field 'bit'}} |
| #endif |
| } |