llvm-project/clang/test/CXX/expr/expr.prim/expr.prim.lambda/p7.cpp

57 lines
1.3 KiB
C++

// RUN: %clang_cc1 -fsyntax-only -std=c++11 %s -verify
// Check that analysis-based warnings work in lambda bodies.
void analysis_based_warnings() {
(void)[]() -> int { }; // expected-warning{{control reaches end of non-void function}}
}
// Check that we get the right types of captured variables (the
// semantic-analysis part of p7).
int &check_const_int(int&);
float &check_const_int(const int&);
void test_capture_constness(int i, const int ic) {
(void)[i,ic] ()->void {
float &fr1 = check_const_int(i);
float &fr2 = check_const_int(ic);
};
(void)[=] ()->void {
float &fr1 = check_const_int(i);
float &fr2 = check_const_int(ic);
};
(void)[i,ic] () mutable ->void {
int &ir = check_const_int(i);
float &fr = check_const_int(ic);
};
(void)[=] () mutable ->void {
int &ir = check_const_int(i);
float &fr = check_const_int(ic);
};
(void)[&i,&ic] ()->void {
int &ir = check_const_int(i);
float &fr = check_const_int(ic);
};
(void)[&] ()->void {
int &ir = check_const_int(i);
float &fr = check_const_int(ic);
};
}
struct S1 {
int x, y;
S1 &operator=(int*);
int operator()(int);
void f() {
[&]()->int {
S1 &s1 = operator=(&this->x);
return operator()(this->x + y);
}();
}
};