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

// RUN: %clang_cc1 -fsyntax-only -Wno-unused-value -verify -std=c++11 %s

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] () {}; 

    [] -> int { return 0; }; // expected-error{{lambda requires '()' before return type}}
    [] mutable -> int { return 0; }; // expected-error{{lambda requires '()' before 'mutable'}}
    return 1;
  }

};