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 | |
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... Args> |
19 | // size_t formatted_size(format-string<Args...> fmt, const Args&... args); |
20 | // template<class... Args> |
21 | // size_t formatted_size(wformat-string<Args...> fmt, const Args&... args); |
22 | |
23 | #include <format> |
24 | |
25 | #include "test_macros.h" |
26 | |
27 | // clang-format off |
28 | |
29 | void f() { |
30 | TEST_IGNORE_NODISCARD std::formatted_size("{" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
31 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
32 | |
33 | TEST_IGNORE_NODISCARD std::formatted_size("}" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
34 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
35 | |
36 | TEST_IGNORE_NODISCARD std::formatted_size("{}" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
37 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
38 | |
39 | TEST_IGNORE_NODISCARD std::formatted_size("{0}" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
40 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
41 | |
42 | TEST_IGNORE_NODISCARD std::formatted_size("{:-}" , "Forty-two" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
43 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
44 | |
45 | TEST_IGNORE_NODISCARD std::formatted_size("{:#}" , "Forty-two" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
46 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
47 | |
48 | TEST_IGNORE_NODISCARD std::formatted_size("{:L}" , "Forty-two" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
49 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
50 | |
51 | TEST_IGNORE_NODISCARD std::formatted_size("{0:{0}}" , "Forty-two" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
52 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
53 | |
54 | TEST_IGNORE_NODISCARD std::formatted_size("{:.42d}" , "Forty-two" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
55 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
56 | |
57 | TEST_IGNORE_NODISCARD std::formatted_size("{:d}" , "Forty-two" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
58 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
59 | |
60 | #ifndef TEST_HAS_NO_WIDE_CHARACTERS |
61 | TEST_IGNORE_NODISCARD std::formatted_size(L"{" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
62 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
63 | |
64 | TEST_IGNORE_NODISCARD std::formatted_size(L"}" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
65 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
66 | |
67 | TEST_IGNORE_NODISCARD std::formatted_size(L"{}" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
68 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
69 | |
70 | TEST_IGNORE_NODISCARD std::formatted_size(L"{0}" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
71 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
72 | |
73 | TEST_IGNORE_NODISCARD std::formatted_size(L"{:-}" , L"Forty-two" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
74 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
75 | |
76 | TEST_IGNORE_NODISCARD std::formatted_size(L"{:#}" , L"Forty-two" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
77 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
78 | |
79 | TEST_IGNORE_NODISCARD std::formatted_size(L"{:L}" , L"Forty-two" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
80 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
81 | |
82 | TEST_IGNORE_NODISCARD std::formatted_size(L"{0:{0}}" , L"Forty-two" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
83 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
84 | |
85 | TEST_IGNORE_NODISCARD std::formatted_size(L"{:.42d}" , L"Forty-two" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
86 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
87 | |
88 | TEST_IGNORE_NODISCARD std::formatted_size(L"{:d}" , L"Forty-two" ); // expected-error-re{{call to consteval function '{{.*}}' is not a constant expression}} |
89 | // expected-note@*:* {{non-constexpr function '__throw_format_error' cannot be used in a constant expression}} |
90 | #endif |
91 | } |
92 | |