diff options
Diffstat (limited to 'gcc/testsuite/g++.dg/lookup/pr79377.C')
-rw-r--r-- | gcc/testsuite/g++.dg/lookup/pr79377.C | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/lookup/pr79377.C b/gcc/testsuite/g++.dg/lookup/pr79377.C new file mode 100644 index 00000000000..baf9a256c7c --- /dev/null +++ b/gcc/testsuite/g++.dg/lookup/pr79377.C @@ -0,0 +1,36 @@ +// PR c++/79377 +// { dg-do run } +// { dg-options "-fpermissive" } + +struct A +{ + A () : a (0) {} + A& operator++ () { ++a; ++c; return *this; } + int a; + static int c; +}; + +int A::c = 0; + +template <typename> +void +foo (A& a) +{ + a++; // { dg-warning "trying prefix operator instead" } + if (A::c != 3 || a.a != 3) __builtin_abort (); + ++a; + if (A::c != 4 || a.a != 4) __builtin_abort (); +} + +int +main () +{ + A a; + if (A::c != 0 || a.a != 0) __builtin_abort (); + ++a; + if (A::c != 1 || a.a != 1) __builtin_abort (); + a++; // { dg-warning "trying prefix operator instead" } + if (A::c != 2 || a.a != 2) __builtin_abort (); + foo<int> (a); + if (A::c != 4 || a.a != 4) __builtin_abort (); +} |