llvm-for-llvmta/tools/clang/test/CXX/expr/expr.prim/expr.prim.lambda/p12.cpp

78 lines
1.9 KiB
C++
Raw Normal View History

2022-04-25 13:02:35 +02:00
// RUN: %clang_cc1 -std=c++11 %s -Wunused -Wno-unused-lambda-capture -verify
void odr_used() {
int i = 17;
[i]{}();
}
struct ReachingThis {
static void static_foo() {
(void)[this](){}; // expected-error{{'this' cannot be captured in this context}}
struct Local {
int i;
void bar() {
(void)[this](){};
(void)[&](){i = 7; };
}
};
}
void foo() {
(void)[this](){};
struct Local {
int i;
static void static_bar() {
(void)[this](){}; // expected-error{{'this' cannot be captured in this context}}
(void)[&](){i = 7; }; // expected-error{{invalid use of member 'i' in static member function}}
}
};
}
};
void immediately_enclosing(int i) { // expected-note{{'i' declared here}}
[i]() {
[i] {}();
}();
[=]() {
[i] {}();
}();
[]() { // expected-note{{lambda expression begins here}}
[i] {}(); // expected-error{{variable 'i' cannot be implicitly captured in a lambda with no capture-default specified}}
}();
}
void f1(int i) { // expected-note{{declared here}}
int const N = 20;
auto m1 = [=]{
int const M = 30;
auto m2 = [i]{
int x[N][M];
x[0][0] = i;
};
(void)N;
(void)M;
(void)m2;
};
struct s1 {
int f;
void work(int n) { // expected-note{{declared here}}
int m = n*n;
int j = 40; // expected-note{{declared here}}
auto m3 = [this,m] { // expected-note 3{{lambda expression begins here}}
auto m4 = [&,j] { // expected-error{{variable 'j' cannot be implicitly captured in a lambda with no capture-default specified}}
int x = n; // expected-error{{variable 'n' cannot be implicitly captured in a lambda with no capture-default specified}}
x += m;
x += i; // expected-error{{variable 'i' cannot be implicitly captured in a lambda with no capture-default specified}}
x += f;
};
};
}
};
}