File: constexpr-late-instantiation.cpp

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,634,792 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (15 lines) | stat: -rw-r--r-- 461 bytes parent folder | download | duplicates (8)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
// RUN: %clang_cc1 %s -fsyntax-only -verify

template <typename T>
constexpr T foo(T a);   // expected-note {{declared here}}

int main() {
  int k = foo<int>(5);  // Ok
  constexpr int j =     // expected-error {{constexpr variable 'j' must be initialized by a constant expression}}
          foo<int>(5);  // expected-note {{undefined function 'foo<int>' cannot be used in a constant expression}}
}

template <typename T>
constexpr T foo(T a) {
  return a;
}