| //===----------------------------------------------------------------------===// |
| // 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: no-localization |
| |
| // 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 Out, class... Args> |
| // Out format_to(Out out, const locale& loc, |
| // format-string<Args...> fmt, const Args&... args); |
| // template<class Out, class... Args> |
| // Out format_to(Out out, const locale& loc, |
| // wformat-string<Args...> fmt, const Args&... args); |
| |
| #include <format> |
| #include <locale> |
| |
| #include "test_macros.h" |
| |
| extern char* out; |
| #ifndef TEST_HAS_NO_WIDE_CHARACTERS |
| extern wchar_t* wout; |
| #endif |
| |
| // clang-format off |
| |
| void f() { |
| std::format_to(out, std::locale(), "{"); // 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_to(out, std::locale(), "}"); // 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_to(out, std::locale(), "{}"); // 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_to(out, std::locale(), "{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_to(out, std::locale(), "{:-}", "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_to(out, std::locale(), "{:#}", "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_to(out, std::locale(), "{: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_to(out, std::locale(), "{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_to(out, std::locale(), "{:.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_to(out, std::locale(), "{: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_to(wout, std::locale(), 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_to(wout, std::locale(), 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_to(wout, std::locale(), 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_to(wout, std::locale(), 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_to(wout, std::locale(), 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_to(wout, std::locale(), 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_to(wout, std::locale(), 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_to(wout, std::locale(), 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_to(wout, std::locale(), 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_to(wout, std::locale(), 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 |
| } |