diff options
Diffstat (limited to 'gcc/testsuite/g++.dg/cpp0x/explicit3.C')
-rw-r--r-- | gcc/testsuite/g++.dg/cpp0x/explicit3.C | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/cpp0x/explicit3.C b/gcc/testsuite/g++.dg/cpp0x/explicit3.C new file mode 100644 index 000000000..be0a14e7a --- /dev/null +++ b/gcc/testsuite/g++.dg/cpp0x/explicit3.C @@ -0,0 +1,51 @@ +// Test for "contextually converted to bool" +// { dg-options "-std=c++0x" } + +struct A +{ + explicit operator bool(); +}; + +void f (bool); + +struct B +{ + bool b; +}; + +struct C +{ + operator int(); +}; + +struct D +{ + operator int(); +}; + +int main() +{ + A a; C c; D d; + // These contexts use an explicit bool conversion. + if (a) {} + for (; a; ) {} + do {} while (a); + while (a) {} + a ? 1 : 0; + a || true; + a && true; + !a; + + a ? c : 1; + a ? c : d; + + // These do not. + switch (a); // { dg-error "" } + bool b = a; // { dg-error "" } + // { dg-message "candidate" "candidate note" { target *-*-* } 44 } + f(a); // { dg-error "" } + B b2 = { a }; // { dg-error "" } + a + true; // { dg-message "" } + b ? a : true; // { dg-message "" } + a ? a : true; // { dg-message "" } +} |