File: fold_expr_expansion_limit.cpp

package info (click to toggle)
llvm-toolchain-13 1%3A13.0.1-11
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,418,840 kB
  • sloc: cpp: 5,290,826; ansic: 996,570; asm: 544,593; python: 188,212; objc: 72,027; lisp: 30,291; f90: 25,395; sh: 24,898; javascript: 9,780; pascal: 9,398; perl: 7,484; ml: 5,432; awk: 3,523; makefile: 2,913; xml: 953; cs: 573; fortran: 539
file content (9 lines) | stat: -rw-r--r-- 551 bytes parent folder | download | duplicates (18) 
1
2
3
4
5
6
7
8
9
 
// RUN: %clang_cc1 -fsyntax-only -fbracket-depth 2 -verify -std=c++17 %s

template <class T, T... V> struct seq {
  constexpr bool zero() { return (true && ... && (V == 0)); }; // expected-error {{instantiating fold expression with 3 arguments exceeded expression nesting limit of 2}} \
                                                                  expected-note {{use -fbracket-depth}}
};
constexpr unsigned N = 3;
auto x = __make_integer_seq<seq, int, N>{};
static_assert(!x.zero(), ""); // expected-note {{in instantiation of member function}}