17f0680f69
According to [dcl.fct] p23:
> An abbreviated function template can have a _template-head_. The
invented _template-parameters_ are appended to the
_template-parameter-list_ after the explicitly declared
_template-parameters_.
`template<>` is not a _template-head_ -- a _template-head_ must have at
least one _template-parameter_. This patch corrects our current behavior
of appending the invented template parameters to the innermost template
parameter list, regardless of whether it is empty. Example:
```
template<typename T>
struct A
{
void f(auto);
};
template<>
void A<int>::f(auto); // ok
template<>
template<> // warning: extraneous template parameter list in template specialization
void A<int>::f(auto);
```
25 lines
868 B
C++
25 lines
868 B
C++
// RUN: %clang_cc1 -verify -fopenmp -ast-print -std=c++20 %s -Wsign-conversion | FileCheck %s
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// RUN: %clang_cc1 -fopenmp -x c++ -std=c++20 -emit-pch -o %t %s
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// RUN: %clang_cc1 -fopenmp -std=c++20 -include-pch %t -fsyntax-only -verify %s -ast-print | FileCheck %s
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// RUN: %clang_cc1 -verify -fopenmp-simd -ast-print -std=c++20 %s -Wsign-conversion | FileCheck %s
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// RUN: %clang_cc1 -fopenmp-simd -x c++ -std=c++20 -emit-pch -o %t %s
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// RUN: %clang_cc1 -fopenmp-simd -std=c++20 -include-pch %t -fsyntax-only -verify %s -ast-print | FileCheck %s
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// expected-no-diagnostics
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#ifndef HEADER
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#define HEADER
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// CHECK: void do_loop(const auto &v) {
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// CHECK-NEXT: #pragma omp parallel for
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// CHECK-NEXT: for (const auto &i : v)
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// CHECK-NEXT: ;
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// CHECK-NEXT: }
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void do_loop(const auto &v) {
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#pragma omp parallel for
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for (const auto &i : v)
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;
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}
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#endif
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