1 | //===----------------------------------------------------------------------===// |
2 | // |
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | // See https://llvm.org/LICENSE.txt for license information. |
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | // |
7 | //===----------------------------------------------------------------------===// |
8 | |
9 | // UNSUPPORTED: c++03, c++11, c++14, c++17 |
10 | // UNSUPPORTED: no-localization |
11 | |
12 | // TODO FMT This test should not require std::to_chars(floating-point) |
13 | // XFAIL: availability-fp_to_chars-missing |
14 | |
15 | // Basic test to validate ill-formed code is properly detected. |
16 | |
17 | // <format> |
18 | |
19 | // template<class... Args> |
20 | // string format(const locale& loc, format-string<Args...> fmt, const Args&... args); |
21 | // template<class... Args> |
22 | // wstring format(const locale& loc, wformat-string<Args...> fmt, const Args&... args); |
23 | |
24 | #include <format> |
25 | #include <locale> |
26 | |
27 | #include "test_macros.h" |
28 | |
29 | // clang-format off |
30 | |
31 | void f() { |
32 | TEST_IGNORE_NODISCARD std::format(std::locale(), "{" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
33 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
34 | |
35 | TEST_IGNORE_NODISCARD std::format(std::locale(), "}" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
36 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
37 | |
38 | TEST_IGNORE_NODISCARD std::format(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 | TEST_IGNORE_NODISCARD std::format(std::locale(), "{0}" ); // 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 | TEST_IGNORE_NODISCARD std::format(std::locale(), "{:-}" , "Forty-two" ); // 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 | TEST_IGNORE_NODISCARD std::format(std::locale(), "{:#}" , "Forty-two" ); // 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 | TEST_IGNORE_NODISCARD std::format(std::locale(), "{:L}" , "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 | TEST_IGNORE_NODISCARD std::format(std::locale(), "{0:{0}}" , "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 | TEST_IGNORE_NODISCARD std::format(std::locale(), "{:.42d}" , "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 | TEST_IGNORE_NODISCARD std::format(std::locale(), "{:d}" , "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 | #ifndef TEST_HAS_NO_WIDE_CHARACTERS |
63 | TEST_IGNORE_NODISCARD std::format(std::locale(), L"{" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
64 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
65 | |
66 | TEST_IGNORE_NODISCARD std::format(std::locale(), L"}" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
67 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
68 | |
69 | TEST_IGNORE_NODISCARD std::format(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 | TEST_IGNORE_NODISCARD std::format(std::locale(), L"{0}" ); // 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 | TEST_IGNORE_NODISCARD std::format(std::locale(), L"{:-}" , L"Forty-two" ); // 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 | TEST_IGNORE_NODISCARD std::format(std::locale(), L"{:#}" , L"Forty-two" ); // 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 | TEST_IGNORE_NODISCARD std::format(std::locale(), L"{: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 | TEST_IGNORE_NODISCARD std::format(std::locale(), L"{0:{0}}" , 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 | TEST_IGNORE_NODISCARD std::format(std::locale(), L"{:.42d}" , 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 | TEST_IGNORE_NODISCARD std::format(std::locale(), L"{:d}" , 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 | #endif |
93 | } |
94 | |