llvm-project/clang/test/SemaTemplate/implicit-instantiation-1.cpp

26 lines
662 B
C++

// RUN: clang-cc -fsyntax-only -verify %s
template<typename T, typename U>
struct X {
T f(T x, U y) { return x + y; }
unsigned g(T x, U y) { return sizeof(f(x, y)); }
};
void test(X<int, int> *xii, X<int*, int> *xpi, X<int, int*> *xip) {
(void)xii->f(1, 2);
(void)xpi->f(0, 2);
(void)sizeof(xip->f(2, 0)); // okay: does not instantiate
(void)xip->g(2, 0); // okay: does not instantiate
}
template<typename T, typename U>
T add(T t, U u) {
return t + u; // expected-error{{invalid operands}}
}
void test_add(char *cp, int i, int *ip) {
char* cp2 = add(cp, i);
add(cp, cp); // expected-note{{instantiation of}}
(void)sizeof(add(ip, ip));
}