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TheRock/compiler/amd-llvm/clang/test/Parser/cxx2c-template-template-param.cpp
derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

80 lines
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// RUN: %clang_cc1 -std=c++2c -verify %s
template<template<typename> auto Var>
struct A{};
template<template<auto> auto Var>
struct B{};
template<template<typename> auto Var>
struct C{};
template<template<typename> concept C>
struct D{};
template<template<auto> concept C>
struct E{};
template<template<typename> auto Var>
int V1;
template<template<auto> auto Var>
int V2;
template<template<typename> auto Var>
int V3;
template<template<typename> concept C>
int V4;
template<template<auto> concept C>
int V5;
namespace packs {
template<template<typename> auto... Var>
struct A{};
template<template<auto> auto... Var>
struct B{};
template<template<typename> auto... Var>
struct C{};
template<template<typename> concept... C>
struct D{};
template<template<auto> concept... C>
struct E{};
template<template<typename> auto... Var>
int V1;
template<template<auto> auto... Var>
int V2;
template<template<typename> auto... Var>
int V3;
template<template<typename> concept... C>
int V4;
template<template<auto> concept... C>
int V5;
}
namespace concepts {
template<template<auto> concept...>
struct A{};
template<template<auto> concept... C>
struct B{};
template<template<auto> concept& C> // expected-error{{expected identifier}} \
// expected-error {{in declaration of struct 'C'}}
struct C{};
}
namespace vars {
template<template<auto> auto...>
struct A{};
template<template<auto> auto & C> // expected-error {{expected identifier}} \
// expected-error {{extraneous 'template<>'}}
struct B{};
template<template<auto> const auto> // expected-error {{expected identifier}} \
// expected-error {{extraneous 'template<>'}}
struct C{};
}
namespace errors {
template<concept> // expected-error {{expected template parameter}} \
// expected-error {{extraneous 'template<>' in declaration of struct 'A'}}
struct A{};
template<template<concept> auto> // expected-error {{expected template parameter}} \
// expected-error {{template template parameter must have its own template parameters}}
struct B{};
}