37 lines · cpp
1// RUN: %clang_cc1 -fsyntax-only -verify -ftemplate-depth=128 -ftemplate-backtrace-limit=4 %s2 3template<int N> struct S {4 typedef typename S<N-1>::type type;5 static int f(int n = S<N-1>::f()); // \6// expected-error{{recursive template instantiation exceeded maximum depth of 128}} \7// expected-note 3 {{instantiation of default function argument}} \8// expected-note {{skipping 125 contexts in backtrace}} \9// expected-note {{use -ftemplate-depth=N to increase recursive template instantiation depth}}10 11};12template<> struct S<0> {13 typedef int type;14};15 16// Incrementally instantiate up to S<2048>.17template struct S<128>;18template struct S<256>;19template struct S<384>;20template struct S<512>;21template struct S<640>;22template struct S<768>;23template struct S<896>;24template struct S<1024>;25template struct S<1152>;26template struct S<1280>;27template struct S<1408>;28template struct S<1536>;29template struct S<1664>;30template struct S<1792>;31template struct S<1920>;32template struct S<2048>;33 34// Check that we actually bail out when we hit the instantiation depth limit for35// the default arguments.36void g() { S<2048>::f(); } // expected-note {{required here}}37