diff options
Diffstat (limited to 'gcc/testsuite/g++.dg/expr/lval2.C')
-rw-r--r-- | gcc/testsuite/g++.dg/expr/lval2.C | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/expr/lval2.C b/gcc/testsuite/g++.dg/expr/lval2.C new file mode 100644 index 000000000..5d062f1c6 --- /dev/null +++ b/gcc/testsuite/g++.dg/expr/lval2.C @@ -0,0 +1,27 @@ +// PR c++/19199 + +// { dg-do run } + +// We used to turn the COND_EXPR lvalue into a MIN_EXPR rvalue, and +// then return a reference to a temporary in qMin. + +#include <assert.h> + +enum Foo { A, B }; + +template<typename T> T &qMin(T &a, T &b) +{ + return a < b ? a : b; +} + +int main (int, char **) +{ + Foo f = A; + Foo g = B; + Foo &h = qMin(f, g); + assert (&h == &f || &h == &g); + const Foo &i = qMin((const Foo&)f, (const Foo&)g); + assert (&i == &f || &i == &g); + return 0; +} + |