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// ensure that failing pre/post can fail at constexpr time
// { dg-do compile }
// { dg-options "-std=c++20 -fcontracts -fcontract-continuation-mode=on" }
constexpr int ffun(int a)
[[ pre: a > 0 ]]
[[ post r: r > 10 ]]
{
return a;
}
template<typename T>
constexpr int ftfun(T a)
[[ pre: a > 0 ]]
[[ post r: r > 10 ]]
{
return a;
}
constexpr int explicitfn(int a)
[[ pre ignore: a > 0 ]]
[[ pre check_maybe_continue: a > 0 ]]
[[ post ignore r: r > 10 ]]
[[ post check_maybe_continue r: r > 10 ]]
{
return a;
}
template<typename T>
constexpr int ftfun2(T a)
[[ pre: a > 0 ]]
[[ post r: r > 10 ]]
{
return a;
}
int main(int, char **) {
constexpr int a = ffun(-10);
// { dg-error "contract predicate" "" { target *-*-* } 6 }
constexpr int b = ftfun(-10);
// { dg-error "contract predicate" "" { target *-*-* } 14 }
constexpr int c = explicitfn(-10);
// { dg-error "contract predicate" "" { target *-*-* } 22 }
constexpr int d = ftfun2(-10.0);
// { dg-error "contract predicate" "" { target *-*-* } 31 }
constexpr int e = ffun(5);
// { dg-error "contract predicate" "" { target *-*-* } 7 }
constexpr int f = ftfun(5);
// { dg-error "contract predicate" "" { target *-*-* } 15 }
constexpr int g = explicitfn(5);
// { dg-error "contract predicate" "" { target *-*-* } 24 }
constexpr int h = ftfun2(5.5);
// { dg-error "contract predicate" "" { target *-*-* } 32 }
return 0;
}
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