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 | // <format> |
15 | |
16 | // Basic test to validate ill-formed code is properly detected. |
17 | |
18 | // template<class Out, class... Args> |
19 | // Out format_to(Out out, format-string<Args...> fmt, const Args&... args); |
20 | // template<class Out, class... Args> |
21 | // Out format_to(Out out, wformat-string<Args...> fmt, const Args&... args); |
22 | |
23 | #include <format> |
24 | |
25 | #include "test_macros.h" |
26 | |
27 | extern char* out; |
28 | #ifndef TEST_HAS_NO_WIDE_CHARACTERS |
29 | extern wchar_t* wout; |
30 | #endif |
31 | |
32 | // clang-format off |
33 | |
34 | void f() { |
35 | std::format_to(out, "{" ); // 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 | std::format_to(out, "}" ); // 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, "{}" ); // 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, "{0}" ); // 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, "{:-}" , "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 | std::format_to(out, "{:#}" , "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, "{:L}" , "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, "{0:{0}}" , "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, "{:.42d}" , "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, "{:d}" , "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 | #ifndef TEST_HAS_NO_WIDE_CHARACTERS |
66 | std::format_to(wout, 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 | std::format_to(wout, 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, 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, L"{0}" ); // 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, 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 | std::format_to(wout, 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, L"{: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, L"{0:{0}}" , 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, L"{:.42d}" , 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, L"{:d}" , 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 | #endif |
96 | } |
97 | |