llvm-project/clang/test/Parser/cxx0x-lambda-expressions.cpp

52 lines
2.0 KiB
C++

// RUN: %clang_cc1 -fsyntax-only -Wno-unused-value -verify -std=c++11 %s
enum E { e };
class C {
int f() {
int foo, bar;
[]; // expected-error {{expected body of lambda expression}}
[+] {}; // expected-error {{expected variable name or 'this' in lambda capture list}}
[foo+] {}; // expected-error {{expected ',' or ']' in lambda capture list}}
[foo,&this] {}; // expected-error {{'this' cannot be captured by reference}}
[&this] {}; // expected-error {{'this' cannot be captured by reference}}
[&,] {}; // expected-error {{expected variable name or 'this' in lambda capture list}}
[=,] {}; // expected-error {{expected variable name or 'this' in lambda capture list}}
[] {};
[=] (int i) {};
[&] (int) mutable -> void {};
[foo,bar] () { return 3; };
[=,&foo] () {};
[&,foo] () {};
[this] () {};
[] () -> class C { return C(); };
[] () -> enum E { return e; };
[] -> int { return 0; }; // expected-error{{lambda requires '()' before return type}}
[] mutable -> int { return 0; }; // expected-error{{lambda requires '()' before 'mutable'}}
[](int) -> {}; // PR13652 expected-error {{expected a type}}
return 1;
}
void designator_or_lambda() {
typedef int T;
const int b = 0;
const int c = 1;
int a1[1] = {[b] (T()) {}}; // expected-error{{no viable conversion from '<lambda}}
int a2[1] = {[b] = 1 };
int a3[1] = {[b,c] = 1 }; // expected-error{{expected body of lambda expression}}
int a4[1] = {[&b] = 1 }; // expected-error{{integral constant expression must have integral or unscoped enumeration type, not 'const int *'}}
int a5[3] = { []{return 0;}() };
int a6[1] = {[this] = 1 }; // expected-error{{integral constant expression must have integral or unscoped enumeration type, not 'C *'}}
}
void delete_lambda(int *p) {
delete [] p;
delete [] (int*) { new int }; // ok, compound-literal, not lambda
delete [] { return new int; } (); // expected-error{{expected expression}}
delete [&] { return new int; } (); // ok, lambda
}
};