848 lines
20 KiB
C++
848 lines
20 KiB
C++
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// RUN: %clang_cc1 -std=c++1y -verify -fsyntax-only -fblocks -emit-llvm-only %s
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// RUN: %clang_cc1 -std=c++1y -verify -fsyntax-only -fblocks -fdelayed-template-parsing %s -DDELAYED_TEMPLATE_PARSING
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// RUN: %clang_cc1 -std=c++1y -verify -fsyntax-only -fblocks -fms-extensions %s -DMS_EXTENSIONS
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// RUN: %clang_cc1 -std=c++1y -verify -fsyntax-only -fblocks -fdelayed-template-parsing -fms-extensions %s -DMS_EXTENSIONS -DDELAYED_TEMPLATE_PARSING
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namespace explicit_call {
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int test() {
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auto L = [](auto a) { return a; };
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L.operator()(3);
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L.operator()<char>(3.14); //expected-warning{{implicit conversion}}
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return 0;
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}
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} //end ns
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namespace test_conversion_to_fptr_2 {
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template<class T> struct X {
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T (*fp)(T) = [](auto a) { return a; };
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};
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X<int> xi;
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template<class T>
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void fooT(T t, T (*fp)(T) = [](auto a) { return a; }) {
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fp(t);
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}
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int test() {
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{
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auto L = [](auto a) { return a; };
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int (*fp)(int) = L;
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fp(5);
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L(3);
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char (*fc)(char) = L;
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fc('b');
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L('c');
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double (*fd)(double) = L;
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fd(3.14);
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fd(6.26);
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L(4.25);
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}
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{
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auto L = [](auto a) ->int { return a; }; //expected-note 2{{candidate template ignored}}
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int (*fp)(int) = L;
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char (*fc)(char) = L; //expected-error{{no viable conversion}}
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double (*fd)(double) = L; //expected-error{{no viable conversion}}
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}
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{
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int x = 5;
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auto L = [=](auto b, char c = 'x') {
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int i = x;
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return [](auto a) ->decltype(a) { return a; };
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};
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int (*fp)(int) = L(8);
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fp(5);
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L(3);
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char (*fc)(char) = L('a');
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fc('b');
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L('c');
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double (*fd)(double) = L(3.14);
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fd(3.14);
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fd(6.26);
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}
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{
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auto L = [=](auto b) {
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return [](auto a) ->decltype(b)* { return (decltype(b)*)0; };
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};
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int* (*fp)(int) = L(8);
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fp(5);
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L(3);
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char* (*fc)(char) = L('a');
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fc('b');
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L('c');
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double* (*fd)(double) = L(3.14);
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fd(3.14);
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fd(6.26);
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}
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{
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auto L = [=](auto b) {
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return [](auto a) ->decltype(b)* { return (decltype(b)*)0; }; //expected-note{{candidate template ignored}}
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};
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char* (*fp)(int) = L('8');
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fp(5);
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char* (*fc)(char) = L('a');
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fc('b');
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double* (*fi)(int) = L(3.14);
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fi(5);
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int* (*fi2)(int) = L(3.14); //expected-error{{no viable conversion}}
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}
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{
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auto L = [=](auto b) {
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return [](auto a) {
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return [=](auto c) {
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return [](auto d) ->decltype(a + b + c + d) { return d; };
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};
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};
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};
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int (*fp)(int) = L('8')(3)(short{});
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double (*fs)(char) = L(3.14)(short{})('4');
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}
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fooT(3);
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fooT('a');
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fooT(3.14);
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fooT("abcdefg");
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return 0;
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}
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int run2 = test();
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}
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namespace test_conversion_to_fptr {
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void f1(int (*)(int)) { }
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void f2(char (*)(int)) { } // expected-note{{candidate}}
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void g(int (*)(int)) { } // #1 expected-note{{candidate}}
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void g(char (*)(char)) { } // #2 expected-note{{candidate}}
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void h(int (*)(int)) { } // #3
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void h(char (*)(int)) { } // #4
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int test() {
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{
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auto glambda = [](auto a) { return a; };
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glambda(1);
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f1(glambda); // OK
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f2(glambda); // expected-error{{no matching function}}
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g(glambda); // expected-error{{call to 'g' is ambiguous}}
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h(glambda); // OK: calls #3 since it is convertible from ID
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int& (*fpi)(int*) = [](auto* a) -> auto& { return *a; }; // OK
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}
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{
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auto L = [](auto a) { return a; };
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int (*fp)(int) = L;
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fp(5);
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L(3);
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char (*fc)(char) = L;
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fc('b');
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L('c');
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double (*fd)(double) = L;
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fd(3.14);
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fd(6.26);
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L(4.25);
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}
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{
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auto L = [](auto a) ->int { return a; }; //expected-note 2{{candidate template ignored}}
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int (*fp)(int) = L;
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char (*fc)(char) = L; //expected-error{{no viable conversion}}
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double (*fd)(double) = L; //expected-error{{no viable conversion}}
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}
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{
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int* (*fp)(int*) = [](auto *a) -> auto* { return a; };
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fp(0);
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}
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}
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namespace more_converion_to_ptr_to_function_tests {
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int test() {
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{
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int& (*fpi)(int*) = [](auto* a) -> auto& { return *a; }; // OK
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int (*fp2)(int) = [](auto b) -> int { return b; };
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int (*fp3)(char) = [](auto c) -> int { return c; };
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char (*fp4)(int) = [](auto d) { return d; }; //expected-error{{no viable conversion}}\
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//expected-note{{candidate template ignored}}
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char (*fp5)(char) = [](auto e) -> int { return e; }; //expected-error{{no viable conversion}}\
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//expected-note{{candidate template ignored}}
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fp2(3);
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fp3('\n');
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fp3('a');
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return 0;
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}
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} // end test()
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template<class ... Ts> void vfun(Ts ... ) { }
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int variadic_test() {
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int (*fp)(int, char, double) = [](auto ... a) -> int { vfun(a...); return 4; };
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fp(3, '4', 3.14);
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int (*fp2)(int, char, double) = [](auto ... a) { vfun(a...); return 4; };
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fp(3, '4', 3.14);
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return 2;
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}
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} // end ns
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namespace conversion_operator {
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void test() {
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auto L = [](auto a) -> int { return a; };
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int (*fp)(int) = L;
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int (&fp2)(int) = [](auto a) { return a; }; // expected-error{{non-const lvalue}}
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int (&&fp3)(int) = [](auto a) { return a; }; // expected-error{{no viable conversion}}\
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//expected-note{{candidate}}
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}
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}
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}
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namespace return_type_deduction_ok {
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auto l = [](auto a) ->auto { return a; }(2);
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auto l2 = [](auto a) ->decltype(auto) { return a; }(2);
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auto l3 = [](auto a) { return a; }(2);
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}
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namespace generic_lambda_as_default_argument_ok {
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void test(int i = [](auto a)->int { return a; }(3)) {
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}
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}
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namespace nested_non_capturing_lambda_tests {
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template<class ... Ts> void print(Ts ...) { }
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int test() {
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{
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auto L = [](auto a) {
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return [](auto b) {
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return b;
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};
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};
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auto M = L(3);
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M(4.15);
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}
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{
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int i = 10; //expected-note 3{{declared here}}
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auto L = [](auto a) {
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return [](auto b) { //expected-note 3{{begins here}}
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i = b; //expected-error 3{{cannot be implicitly captured}}
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return b;
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};
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};
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auto M = L(3); //expected-note{{instantiation}}
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M(4.15); //expected-note{{instantiation}}
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}
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{
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int i = 10;
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auto L = [](auto a) {
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return [](auto b) {
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b = sizeof(i); //ok
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return b;
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};
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};
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}
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{
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auto L = [](auto a) {
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print("a = ", a, "\n");
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return [](auto b) ->decltype(a) {
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print("b = ", b, "\n");
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return b;
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};
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};
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auto M = L(3);
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M(4.15);
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}
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{
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auto L = [](auto a) ->decltype(a) {
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print("a = ", a, "\n");
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return [](auto b) ->decltype(a) { //expected-error{{no viable conversion}}\
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//expected-note{{candidate template ignored}}
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print("b = ", b, "\n");
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return b;
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};
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};
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auto M = L(3); //expected-note{{in instantiation of}}
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}
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{
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auto L = [](auto a) {
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print("a = ", a, "\n");
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return [](auto ... b) ->decltype(a) {
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print("b = ", b ..., "\n");
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return 4;
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};
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};
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auto M = L(3);
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M(4.15, 3, "fv");
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}
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{
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auto L = [](auto a) {
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print("a = ", a, "\n");
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return [](auto ... b) ->decltype(a) {
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print("b = ", b ..., "\n");
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return 4;
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};
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};
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auto M = L(3);
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int (*fp)(double, int, const char*) = M;
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fp(4.15, 3, "fv");
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}
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{
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auto L = [](auto a) {
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print("a = ", a, "\n");
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return [](char b) {
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return [](auto ... c) ->decltype(b) {
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print("c = ", c ..., "\n");
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return 42;
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};
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};
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};
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L(4);
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auto M = L(3);
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M('a');
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auto N = M('x');
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N("\n3 = ", 3, "\n6.14 = ", 6.14, "\n4'123'456 = ", 4'123'456);
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char (*np)(const char*, int, const char*, double, const char*, int) = N;
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np("\n3 = ", 3, "\n6.14 = ", 6.14, "\n4'123'456 = ", 4'123'456);
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}
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||
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{
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auto L = [](auto a) {
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print("a = ", a, "\n");
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return [](decltype(a) b) {
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return [](auto ... c) ->decltype(b) {
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print("c = ", c ..., "\n");
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return 42;
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};
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};
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};
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L('4');
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auto M = L('3');
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M('a');
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auto N = M('x');
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N("\n3 = ", 3, "\n6.14 = ", 6.14, "\n4'123'456 = ", 4'123'456);
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char (*np)(const char*, int, const char*, double, const char*, int) = N;
|
||
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np("\n3 = ", 3, "\n6.14 = ", 6.14, "\n4'123'456 = ", 4'123'456);
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||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
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{
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||
|
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struct X {
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||
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static void foo(double d) { }
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||
|
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void test() {
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||
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auto L = [](auto a) {
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print("a = ", a, "\n");
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foo(a);
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return [](decltype(a) b) {
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foo(b);
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foo(sizeof(a) + sizeof(b));
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return [](auto ... c) ->decltype(b) {
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||
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print("c = ", c ..., "\n");
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||
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foo(decltype(b){});
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||
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foo(sizeof(decltype(a)*) + sizeof(decltype(b)*));
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||
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return 42;
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||
|
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};
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||
|
|
};
|
||
|
|
};
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||
|
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L('4');
|
||
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auto M = L('3');
|
||
|
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M('a');
|
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auto N = M('x');
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||
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N("\n3 = ", 3, "\n6.14 = ", 6.14, "\n4'123'456 = ", 4'123'456);
|
||
|
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char (*np)(const char*, int, const char*, double, const char*, int) = N;
|
||
|
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np("\n3 = ", 3, "\n6.14 = ", 6.14, "\n4'123'456 = ", 4'123'456);
|
||
|
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}
|
||
|
|
};
|
||
|
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X x;
|
||
|
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x.test();
|
||
|
|
}
|
||
|
|
// Make sure we can escape the function
|
||
|
|
{
|
||
|
|
struct X {
|
||
|
|
static void foo(double d) { }
|
||
|
|
auto test() {
|
||
|
|
auto L = [](auto a) {
|
||
|
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print("a = ", a, "\n");
|
||
|
|
foo(a);
|
||
|
|
return [](decltype(a) b) {
|
||
|
|
foo(b);
|
||
|
|
foo(sizeof(a) + sizeof(b));
|
||
|
|
return [](auto ... c) ->decltype(b) {
|
||
|
|
print("c = ", c ..., "\n");
|
||
|
|
foo(decltype(b){});
|
||
|
|
foo(sizeof(decltype(a)*) + sizeof(decltype(b)*));
|
||
|
|
return 42;
|
||
|
|
};
|
||
|
|
};
|
||
|
|
};
|
||
|
|
return L;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
X x;
|
||
|
|
auto L = x.test();
|
||
|
|
L('4');
|
||
|
|
auto M = L('3');
|
||
|
|
M('a');
|
||
|
|
auto N = M('x');
|
||
|
|
N("\n3 = ", 3, "\n6.14 = ", 6.14, "\n4'123'456 = ", 4'123'456);
|
||
|
|
char (*np)(const char*, int, const char*, double, const char*, int) = N;
|
||
|
|
np("\n3 = ", 3, "\n6.14 = ", 6.14, "\n4'123'456 = ", 4'123'456);
|
||
|
|
}
|
||
|
|
|
||
|
|
{
|
||
|
|
struct X {
|
||
|
|
static void foo(double d) { }
|
||
|
|
auto test() {
|
||
|
|
auto L = [](auto a) {
|
||
|
|
print("a = ", a, "\n");
|
||
|
|
foo(a);
|
||
|
|
return [](decltype(a) b) {
|
||
|
|
foo(b);
|
||
|
|
foo(sizeof(a) + sizeof(b));
|
||
|
|
return [](auto ... c) {
|
||
|
|
print("c = ", c ..., "\n");
|
||
|
|
foo(decltype(b){});
|
||
|
|
foo(sizeof(decltype(a)*) + sizeof(decltype(b)*));
|
||
|
|
return [](decltype(c) ... d) ->decltype(a) { //expected-note{{candidate}}
|
||
|
|
print("d = ", d ..., "\n");
|
||
|
|
foo(decltype(b){});
|
||
|
|
foo(sizeof(decltype(a)*) + sizeof(decltype(b)*));
|
||
|
|
return decltype(a){};
|
||
|
|
};
|
||
|
|
};
|
||
|
|
};
|
||
|
|
};
|
||
|
|
return L;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
X x;
|
||
|
|
auto L = x.test();
|
||
|
|
L('4');
|
||
|
|
auto M = L('3');
|
||
|
|
M('a');
|
||
|
|
auto N = M('x');
|
||
|
|
auto O = N("\n3 = ", 3, "\n6.14 = ", 6.14, "\n4'123'456 = ", 4'123'456);
|
||
|
|
char (*np)(const char*, int, const char*, double, const char*, int) = O;
|
||
|
|
np("\n3 = ", 3, "\n6.14 = ", 6.14, "\n4'123'456 = ", 4'123'456);
|
||
|
|
int (*np2)(const char*, int, const char*, double, const char*, int) = O; // expected-error{{no viable conversion}}
|
||
|
|
|
||
|
|
}
|
||
|
|
} // end test()
|
||
|
|
|
||
|
|
namespace wrapped_within_templates {
|
||
|
|
|
||
|
|
namespace explicit_return {
|
||
|
|
template<class T> int fooT(T t) {
|
||
|
|
auto L = [](auto a) -> void {
|
||
|
|
auto M = [](char b) -> void {
|
||
|
|
auto N = [](auto c) -> void {
|
||
|
|
int x = 0;
|
||
|
|
x = sizeof(a);
|
||
|
|
x = sizeof(b);
|
||
|
|
x = sizeof(c);
|
||
|
|
};
|
||
|
|
N('a');
|
||
|
|
N(decltype(a){});
|
||
|
|
};
|
||
|
|
};
|
||
|
|
L(t);
|
||
|
|
L(3.14);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int run = fooT('a') + fooT(3.14);
|
||
|
|
|
||
|
|
} // end explicit_return
|
||
|
|
|
||
|
|
namespace implicit_return_deduction {
|
||
|
|
template<class T> auto fooT(T t) {
|
||
|
|
auto L = [](auto a) {
|
||
|
|
auto M = [](char b) {
|
||
|
|
auto N = [](auto c) {
|
||
|
|
int x = 0;
|
||
|
|
x = sizeof(a);
|
||
|
|
x = sizeof(b);
|
||
|
|
x = sizeof(c);
|
||
|
|
};
|
||
|
|
N('a');
|
||
|
|
N(decltype(a){});
|
||
|
|
};
|
||
|
|
};
|
||
|
|
L(t);
|
||
|
|
L(3.14);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int run = fooT('a') + fooT(3.14);
|
||
|
|
|
||
|
|
template<class ... Ts> void print(Ts ... ts) { }
|
||
|
|
|
||
|
|
template<class F, class ... Rest> using first = F;
|
||
|
|
|
||
|
|
template<class ... Ts> auto fooV(Ts ... ts) {
|
||
|
|
auto L = [](auto ... a) {
|
||
|
|
auto M = [](decltype(a) ... b) {
|
||
|
|
auto N = [](auto c) {
|
||
|
|
int x = 0;
|
||
|
|
x = sizeof...(a);
|
||
|
|
x = sizeof...(b);
|
||
|
|
x = sizeof(c);
|
||
|
|
};
|
||
|
|
N('a');
|
||
|
|
N(N);
|
||
|
|
N(first<Ts...>{});
|
||
|
|
};
|
||
|
|
M(a...);
|
||
|
|
print("a = ", a..., "\n");
|
||
|
|
};
|
||
|
|
L(L, ts...);
|
||
|
|
print("ts = ", ts..., "\n");
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int run2 = fooV(3.14, " ", '4', 5) + fooV("BC", 3, 2.77, 'A', float{}, short{}, unsigned{});
|
||
|
|
|
||
|
|
} //implicit_return_deduction
|
||
|
|
|
||
|
|
|
||
|
|
} //wrapped_within_templates
|
||
|
|
|
||
|
|
namespace at_ns_scope {
|
||
|
|
void foo(double d) { }
|
||
|
|
auto test() {
|
||
|
|
auto L = [](auto a) {
|
||
|
|
print("a = ", a, "\n");
|
||
|
|
foo(a);
|
||
|
|
return [](decltype(a) b) {
|
||
|
|
foo(b);
|
||
|
|
foo(sizeof(a) + sizeof(b));
|
||
|
|
return [](auto ... c) {
|
||
|
|
print("c = ", c ..., "\n");
|
||
|
|
foo(decltype(b){});
|
||
|
|
foo(sizeof(decltype(a)*) + sizeof(decltype(b)*));
|
||
|
|
return [](decltype(c) ... d) ->decltype(a) { //expected-note{{candidate}}
|
||
|
|
print("d = ", d ..., "\n");
|
||
|
|
foo(decltype(b){});
|
||
|
|
foo(sizeof(decltype(a)*) + sizeof(decltype(b)*));
|
||
|
|
return decltype(a){};
|
||
|
|
};
|
||
|
|
};
|
||
|
|
};
|
||
|
|
};
|
||
|
|
return L;
|
||
|
|
}
|
||
|
|
auto L = test();
|
||
|
|
auto L_test = L('4');
|
||
|
|
auto M = L('3');
|
||
|
|
auto M_test = M('a');
|
||
|
|
auto N = M('x');
|
||
|
|
auto O = N("\n3 = ", 3, "\n6.14 = ", 6.14, "\n4'123'456 = ", 4'123'456);
|
||
|
|
char (*np)(const char*, int, const char*, double, const char*, int) = O;
|
||
|
|
auto NP_result = np("\n3 = ", 3, "\n6.14 = ", 6.14, "\n4'123'456 = ", 4'123'456);
|
||
|
|
int (*np2)(const char*, int, const char*, double, const char*, int) = O; // expected-error{{no viable conversion}}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace variadic_tests_1 {
|
||
|
|
template<class ... Ts> void print(Ts ... ts) { }
|
||
|
|
|
||
|
|
template<class F, class ... Rest> using FirstType = F;
|
||
|
|
template<class F, class ... Rest> F& FirstArg(F& f, Rest...) { return f; }
|
||
|
|
|
||
|
|
template<class ... Ts> int fooV(Ts ... ts) {
|
||
|
|
auto L = [](auto ... a) -> void {
|
||
|
|
auto M = [](decltype(a) ... b) -> void {
|
||
|
|
auto N = [](auto c) -> void {
|
||
|
|
int x = 0;
|
||
|
|
x = sizeof...(a);
|
||
|
|
x = sizeof...(b);
|
||
|
|
x = sizeof(c);
|
||
|
|
};
|
||
|
|
N('a');
|
||
|
|
N(N);
|
||
|
|
N(FirstType<Ts...>{});
|
||
|
|
};
|
||
|
|
M(a...);
|
||
|
|
print("a = ", a..., "\n");
|
||
|
|
};
|
||
|
|
L(L, ts...);
|
||
|
|
print("ts = ", ts..., "\n");
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int run2 = fooV(3.14, " ", '4', 5) + fooV("BC", 3, 2.77, 'A', float{}, short{}, unsigned{});
|
||
|
|
|
||
|
|
namespace more_variadic_1 {
|
||
|
|
|
||
|
|
template<class ... Ts> int fooV(Ts ... ts) {
|
||
|
|
auto L = [](auto ... a) {
|
||
|
|
auto M = [](decltype(a) ... b) -> void {
|
||
|
|
auto N = [](auto c) -> void {
|
||
|
|
int x = 0;
|
||
|
|
x = sizeof...(a);
|
||
|
|
x = sizeof...(b);
|
||
|
|
x = sizeof(c);
|
||
|
|
};
|
||
|
|
N('a');
|
||
|
|
N(N);
|
||
|
|
N(FirstType<Ts...>{});
|
||
|
|
};
|
||
|
|
M(a...);
|
||
|
|
return M;
|
||
|
|
};
|
||
|
|
auto M = L(L, ts...);
|
||
|
|
decltype(L(L, ts...)) (*fp)(decltype(L), decltype(ts) ...) = L;
|
||
|
|
void (*fp2)(decltype(L), decltype(ts) ...) = L(L, ts...);
|
||
|
|
|
||
|
|
{
|
||
|
|
auto L = [](auto ... a) {
|
||
|
|
auto M = [](decltype(a) ... b) {
|
||
|
|
auto N = [](auto c) -> void {
|
||
|
|
int x = 0;
|
||
|
|
x = sizeof...(a);
|
||
|
|
x = sizeof...(b);
|
||
|
|
x = sizeof(c);
|
||
|
|
};
|
||
|
|
N('a');
|
||
|
|
N(N);
|
||
|
|
N(FirstType<Ts...>{});
|
||
|
|
return N;
|
||
|
|
};
|
||
|
|
M(a...);
|
||
|
|
return M;
|
||
|
|
};
|
||
|
|
auto M = L(L, ts...);
|
||
|
|
decltype(L(L, ts...)) (*fp)(decltype(L), decltype(ts) ...) = L;
|
||
|
|
fp(L, ts...);
|
||
|
|
decltype(L(L, ts...)(L, ts...)) (*fp2)(decltype(L), decltype(ts) ...) = L(L, ts...);
|
||
|
|
fp2 = fp(L, ts...);
|
||
|
|
void (*fp3)(char) = fp2(L, ts...);
|
||
|
|
fp3('a');
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int run2 = fooV(3.14, " ", '4', 5) + fooV("BC", 3, 2.77, 'A', float{}, short{}, unsigned{});
|
||
|
|
|
||
|
|
|
||
|
|
} //end ns more_variadic_1
|
||
|
|
|
||
|
|
} // end ns variadic_tests_1
|
||
|
|
|
||
|
|
namespace at_ns_scope_within_class_member {
|
||
|
|
struct X {
|
||
|
|
static void foo(double d) { }
|
||
|
|
auto test() {
|
||
|
|
auto L = [](auto a) {
|
||
|
|
print("a = ", a, "\n");
|
||
|
|
foo(a);
|
||
|
|
return [](decltype(a) b) {
|
||
|
|
foo(b);
|
||
|
|
foo(sizeof(a) + sizeof(b));
|
||
|
|
return [](auto ... c) {
|
||
|
|
print("c = ", c ..., "\n");
|
||
|
|
foo(decltype(b){});
|
||
|
|
foo(sizeof(decltype(a)*) + sizeof(decltype(b)*));
|
||
|
|
return [](decltype(c) ... d) ->decltype(a) { //expected-note{{candidate}}
|
||
|
|
print("d = ", d ..., "\n");
|
||
|
|
foo(decltype(b){});
|
||
|
|
foo(sizeof(decltype(a)*) + sizeof(decltype(b)*));
|
||
|
|
return decltype(a){};
|
||
|
|
};
|
||
|
|
};
|
||
|
|
};
|
||
|
|
};
|
||
|
|
return L;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
X x;
|
||
|
|
auto L = x.test();
|
||
|
|
auto L_test = L('4');
|
||
|
|
auto M = L('3');
|
||
|
|
auto M_test = M('a');
|
||
|
|
auto N = M('x');
|
||
|
|
auto O = N("\n3 = ", 3, "\n6.14 = ", 6.14, "\n4'123'456 = ", 4'123'456);
|
||
|
|
char (*np)(const char*, int, const char*, double, const char*, int) = O;
|
||
|
|
auto NP_result = np("\n3 = ", 3, "\n6.14 = ", 6.14, "\n4'123'456 = ", 4'123'456);
|
||
|
|
int (*np2)(const char*, int, const char*, double, const char*, int) = O; // expected-error{{no viable conversion}}
|
||
|
|
|
||
|
|
} //end at_ns_scope_within_class_member
|
||
|
|
|
||
|
|
|
||
|
|
namespace at_ns_scope_within_class_template_member {
|
||
|
|
struct X {
|
||
|
|
static void foo(double d) { }
|
||
|
|
template<class T = int>
|
||
|
|
auto test(T = T{}) {
|
||
|
|
auto L = [](auto a) {
|
||
|
|
print("a = ", a, "\n");
|
||
|
|
foo(a);
|
||
|
|
return [](decltype(a) b) {
|
||
|
|
foo(b);
|
||
|
|
foo(sizeof(a) + sizeof(b));
|
||
|
|
return [](auto ... c) {
|
||
|
|
print("c = ", c ..., "\n");
|
||
|
|
foo(decltype(b){});
|
||
|
|
foo(sizeof(decltype(a)*) + sizeof(decltype(b)*));
|
||
|
|
return [](decltype(c) ... d) ->decltype(a) { //expected-note{{candidate}}
|
||
|
|
print("d = ", d ..., "\n");
|
||
|
|
foo(decltype(b){});
|
||
|
|
foo(sizeof(decltype(a)*) + sizeof(decltype(b)*));
|
||
|
|
return decltype(a){};
|
||
|
|
};
|
||
|
|
};
|
||
|
|
};
|
||
|
|
};
|
||
|
|
return L;
|
||
|
|
}
|
||
|
|
|
||
|
|
};
|
||
|
|
X x;
|
||
|
|
auto L = x.test();
|
||
|
|
auto L_test = L('4');
|
||
|
|
auto M = L('3');
|
||
|
|
auto M_test = M('a');
|
||
|
|
auto N = M('x');
|
||
|
|
auto O = N("\n3 = ", 3, "\n6.14 = ", 6.14, "\n4'123'456 = ", 4'123'456);
|
||
|
|
char (*np)(const char*, int, const char*, double, const char*, int) = O;
|
||
|
|
auto NP_result = np("\n3 = ", 3, "\n6.14 = ", 6.14, "\n4'123'456 = ", 4'123'456);
|
||
|
|
int (*np2)(const char*, int, const char*, double, const char*, int) = O; // expected-error{{no viable conversion}}
|
||
|
|
|
||
|
|
} //end at_ns_scope_within_class_member
|
||
|
|
|
||
|
|
|
||
|
|
namespace nested_generic_lambdas_123 {
|
||
|
|
void test() {
|
||
|
|
auto L = [](auto a) -> int {
|
||
|
|
auto M = [](auto b, decltype(a) b2) -> int {
|
||
|
|
return 1;
|
||
|
|
};
|
||
|
|
M(a, a);
|
||
|
|
};
|
||
|
|
L(3);
|
||
|
|
}
|
||
|
|
template<class T> void foo(T) {
|
||
|
|
auto L = [](auto a) { return a; };
|
||
|
|
}
|
||
|
|
template void foo(int);
|
||
|
|
} // end ns nested_generic_lambdas_123
|
||
|
|
|
||
|
|
namespace nested_fptr_235 {
|
||
|
|
int test()
|
||
|
|
{
|
||
|
|
auto L = [](auto b) {
|
||
|
|
return [](auto a) ->decltype(a) { return a; };
|
||
|
|
};
|
||
|
|
int (*fp)(int) = L(8);
|
||
|
|
fp(5);
|
||
|
|
L(3);
|
||
|
|
char (*fc)(char) = L('a');
|
||
|
|
fc('b');
|
||
|
|
L('c');
|
||
|
|
double (*fd)(double) = L(3.14);
|
||
|
|
fd(3.14);
|
||
|
|
fd(6.26);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
int run = test();
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
namespace fptr_with_decltype_return_type {
|
||
|
|
template<class F, class ... Ts> using FirstType = F;
|
||
|
|
template<class F, class ... Rest> F& FirstArg(F& f, Rest& ... r) { return f; };
|
||
|
|
template<class ... Ts> auto vfun(Ts&& ... ts) {
|
||
|
|
print(ts...);
|
||
|
|
return FirstArg(ts...);
|
||
|
|
}
|
||
|
|
int test()
|
||
|
|
{
|
||
|
|
{
|
||
|
|
auto L = [](auto ... As) {
|
||
|
|
return [](auto b) ->decltype(b) {
|
||
|
|
vfun([](decltype(As) a) -> decltype(a) { return a; } ...)(FirstType<decltype(As)...>{});
|
||
|
|
return decltype(b){};
|
||
|
|
};
|
||
|
|
};
|
||
|
|
auto LL = L(1, 'a', 3.14, "abc");
|
||
|
|
LL("dim");
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
int run = test();
|
||
|
|
}
|
||
|
|
|
||
|
|
} // end ns nested_non_capturing_lambda_tests
|
||
|
|
|
||
|
|
namespace PR17476 {
|
||
|
|
struct string {
|
||
|
|
string(const char *__s) { }
|
||
|
|
string &operator+=(const string &__str) { return *this; }
|
||
|
|
};
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
void finalizeDefaultAtomValues() {
|
||
|
|
auto startEnd = [](const char * sym) -> void {
|
||
|
|
string start("__");
|
||
|
|
start += sym;
|
||
|
|
};
|
||
|
|
startEnd("preinit_array");
|
||
|
|
}
|
||
|
|
|
||
|
|
void f() { finalizeDefaultAtomValues<char>(); }
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace PR17476_variant {
|
||
|
|
struct string {
|
||
|
|
string(const char *__s) { }
|
||
|
|
string &operator+=(const string &__str) { return *this; }
|
||
|
|
};
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
void finalizeDefaultAtomValues() {
|
||
|
|
auto startEnd = [](const T *sym) -> void {
|
||
|
|
string start("__");
|
||
|
|
start += sym;
|
||
|
|
};
|
||
|
|
startEnd("preinit_array");
|
||
|
|
}
|
||
|
|
|
||
|
|
void f() { finalizeDefaultAtomValues<char>(); }
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace PR17877_lambda_declcontext_and_get_cur_lambda_disconnect {
|
||
|
|
|
||
|
|
|
||
|
|
template<class T> struct U {
|
||
|
|
int t = 0;
|
||
|
|
};
|
||
|
|
|
||
|
|
template<class T>
|
||
|
|
struct V {
|
||
|
|
U<T> size() const { return U<T>{}; }
|
||
|
|
};
|
||
|
|
|
||
|
|
template<typename T>
|
||
|
|
void Do() {
|
||
|
|
V<int> v{};
|
||
|
|
[=] { v.size(); };
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
}
|