Files
RedBear-OS/local/recipes/dev/libclc/source/clang/test/Parser/cxx2b-subscript.cpp
T
vasilito cb424d7448 build: static patch-sanity linter (shift-left the malformed-patch class)
verify-patch-sanity.py validates every active recipe .patch has internally-
consistent hunk line counts — catching the 'malformed patch at line N' failure
at commit/CI/preflight time instead of hours into a cook. This cycle hit that
class three times (qtwaylandscanner, sddm, xwayland), each only discovered when
cookbook tried to apply the patch.

Running it across the repo found 29 latent malformed patches (validated against
GNU patch: e.g. relibc/P3-sysv-ipc reproduces 'malformed patch at line 22').
They were harmless only because they sit in vendored recipes (baked, not re-
applied) — but would fail on any version-bump re-derivation. --fix recounts the
hunk headers (body untouched) and repaired all 29.

Wired into build-preflight.sh (Phase 1.0D) and redbear-ci.yml, with a unit test
(test-patch-sanity.sh). Skips archived/legacy trees and unvalidatable formats
(empty placeholders, bare-@@ git hunks).
2026-08-01 05:13:02 +03:00

59 lines
2.3 KiB
C++

// RUN: %clang_cc1 -fsyntax-only -verify=expected,cxx23 -std=c++23 %s
// RUN: %clang_cc1 -fsyntax-only -verify=expected,cxx20 -std=c++20 %s
//cxx23-no-diagnostics
struct S {
constexpr int operator[](int i) {
return i;
}
constexpr int operator[](int a, int b) { // cxx20-error {{overloaded 'operator[]' cannot have more than one parameter before C++23}}
return a + b;
}
constexpr int operator[]() { // cxx20-error {{overloaded 'operator[]' cannot have no parameter before C++23}}
return 42;
}
};
struct Defaults {
constexpr int operator[](int i = 0) { // cxx20-error {{overloaded 'operator[]' cannot have a defaulted parameter before C++23}}
return 0;
}
constexpr int operator[](int a, int b, int c = 0) { // cxx20-error {{overloaded 'operator[]' cannot have a defaulted parameter before C++23}}\
// cxx20-error {{cannot have more than one parameter before C++23}}
return 0;
}
};
template <typename... T>
struct T1 {
constexpr auto operator[](T &&...arg); // cxx20-error {{overloaded 'operator[]' cannot have no parameter before C++23}} \
// cxx20-error {{overloaded 'operator[]' cannot have more than one parameter before C++23}}
};
T1<> t10; // cxx20-note {{requested here}}
T1<int, int> t12; // cxx20-note {{requested here}}
T1<int> t11;
struct Variadic {
constexpr int operator[](auto &&...arg) { return 0; }
};
void f() {
S s;
(void)s[0];
(void)s[1, 2]; // cxx20-warning {{left operand of comma operator has no effect}}\
// cxx20-warning {{top-level comma expression in array subscript is deprecated in C++20 and unsupported in C++23}}
(void)S{}[]; // cxx20-error {{expected expression}}
(void)Defaults{}[1];
(void)Defaults{}[]; // cxx20-error {{expected expression}}
(void)Defaults{}[1, 2]; // cxx20-warning {{left operand of comma operator has no effect}}\
// cxx20-warning {{top-level comma expression in array subscript is deprecated in C++20 and unsupported in C++23}}
Variadic{}[]; // cxx20-error {{expected expression}}
Variadic{}[1];
Variadic{}[1, 2]; // cxx20-warning {{left operand of comma operator has no effect}}\
// cxx20-warning {{top-level comma expression in array subscript is deprecated in C++20 and unsupported in C++23}}
}