| 1 | //===----------------------------------------------------------------------===// |
|---|
| 2 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
|---|
| 3 | // See https://llvm.org/LICENSE.txt for license information. |
|---|
| 4 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
|---|
| 5 | // |
|---|
| 6 | //===----------------------------------------------------------------------===// |
|---|
| 7 | |
|---|
| 8 | // UNSUPPORTED: c++03, c++11, c++14, c++17 |
|---|
| 9 | // UNSUPPORTED: no-localization |
|---|
| 10 | |
|---|
| 11 | // TODO FMT This test should not require std::to_chars(floating-point) |
|---|
| 12 | // XFAIL: availability-fp_to_chars-missing |
|---|
| 13 | |
|---|
| 14 | // Basic test to validate ill-formed code is properly detected. |
|---|
| 15 | |
|---|
| 16 | // <format> |
|---|
| 17 | |
|---|
| 18 | // template<class Out, class... Args> |
|---|
| 19 | // Out format_to(Out out, const locale& loc, |
|---|
| 20 | // format-string<Args...> fmt, const Args&... args); |
|---|
| 21 | // template<class Out, class... Args> |
|---|
| 22 | // Out format_to(Out out, const locale& loc, |
|---|
| 23 | // wformat-string<Args...> fmt, const Args&... args); |
|---|
| 24 | |
|---|
| 25 | #include <format> |
|---|
| 26 | #include <locale> |
|---|
| 27 | |
|---|
| 28 | #include "test_macros.h" |
|---|
| 29 | |
|---|
| 30 | extern char* out; |
|---|
| 31 | #ifndef TEST_HAS_NO_WIDE_CHARACTERS |
|---|
| 32 | extern wchar_t* wout; |
|---|
| 33 | #endif |
|---|
| 34 | |
|---|
| 35 | // clang-format off |
|---|
| 36 | |
|---|
| 37 | void f() { |
|---|
| 38 | std::format_to(out, std::locale(), "{" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
|---|
| 39 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
|---|
| 40 | |
|---|
| 41 | std::format_to(out, std::locale(), "}" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
|---|
| 42 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
|---|
| 43 | |
|---|
| 44 | std::format_to(out, std::locale(), "{}" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
|---|
| 45 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
|---|
| 46 | |
|---|
| 47 | std::format_to(out, std::locale(), "{0}" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
|---|
| 48 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
|---|
| 49 | |
|---|
| 50 | std::format_to(out, std::locale(), "{:-}" , "Forty-two" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
|---|
| 51 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
|---|
| 52 | |
|---|
| 53 | std::format_to(out, std::locale(), "{:#}" , "Forty-two" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
|---|
| 54 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
|---|
| 55 | |
|---|
| 56 | std::format_to(out, std::locale(), "{:L}" , "Forty-two" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
|---|
| 57 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
|---|
| 58 | |
|---|
| 59 | std::format_to(out, std::locale(), "{0:{0}}" , "Forty-two" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
|---|
| 60 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
|---|
| 61 | |
|---|
| 62 | std::format_to(out, std::locale(), "{:.42d}" , "Forty-two" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
|---|
| 63 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
|---|
| 64 | |
|---|
| 65 | std::format_to(out, std::locale(), "{:d}" , "Forty-two" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
|---|
| 66 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
|---|
| 67 | |
|---|
| 68 | #ifndef TEST_HAS_NO_WIDE_CHARACTERS |
|---|
| 69 | std::format_to(wout, std::locale(), L"{" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
|---|
| 70 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
|---|
| 71 | |
|---|
| 72 | std::format_to(wout, std::locale(), L"}" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
|---|
| 73 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
|---|
| 74 | |
|---|
| 75 | std::format_to(wout, std::locale(), L"{}" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
|---|
| 76 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
|---|
| 77 | |
|---|
| 78 | std::format_to(wout, std::locale(), L"{0}" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
|---|
| 79 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
|---|
| 80 | |
|---|
| 81 | std::format_to(wout, std::locale(), L"{:-}" , L"Forty-two" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
|---|
| 82 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
|---|
| 83 | |
|---|
| 84 | std::format_to(wout, std::locale(), L"{:#}" , L"Forty-two" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
|---|
| 85 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
|---|
| 86 | |
|---|
| 87 | std::format_to(wout, std::locale(), L"{:L}" , L"Forty-two" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
|---|
| 88 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
|---|
| 89 | |
|---|
| 90 | std::format_to(wout, std::locale(), L"{0:{0}}" , L"Forty-two" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
|---|
| 91 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
|---|
| 92 | |
|---|
| 93 | std::format_to(wout, std::locale(), L"{:.42d}" , L"Forty-two" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
|---|
| 94 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
|---|
| 95 | |
|---|
| 96 | std::format_to(wout, std::locale(), L"{:d}" , L"Forty-two" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
|---|
| 97 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
|---|
| 98 | #endif |
|---|
| 99 | } |
|---|
| 100 | |
|---|
