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fix for gcc 4.7~4.8

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This commit is contained in:
bolero-MURAKAMI 2015-05-17 12:17:30 +09:00
parent fa619fc1bf
commit 4fecb5654c
5 changed files with 52 additions and 51 deletions
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21
sprout/stateful/counter.hpp
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@ -35,43 +35,42 @@ namespace sprout {
#endif
template<int N>
struct state {
struct state
: public sprout::integral_constant<int, N>
{
friend SPROUT_CONSTEXPR int adl_counter(sprout::counter_detail::tag<N>) {
return N;
}
SPROUT_STATIC_CONSTEXPR int value = N;
};
template<int N>
SPROUT_CONSTEXPR_OR_CONST int sprout::counter_detail::state<N>::value;
template<int N, int = adl_counter(sprout::counter_detail::tag<N>())>
SPROUT_CONSTEXPR bool check_impl(int, sprout::counter_detail::tag<N>) {
SPROUT_CONSTEXPR bool check(int, sprout::counter_detail::tag<N>) {
return true;
}
template<int N>
SPROUT_CONSTEXPR bool check_impl(long, sprout::counter_detail::tag<N>) {
SPROUT_CONSTEXPR bool check(long, sprout::counter_detail::tag<N>) {
return false;
}
template<int N>
SPROUT_CONSTEXPR bool check(bool R = sprout::counter_detail::check_impl(0, sprout::counter_detail::tag<N>())) {
SPROUT_CONSTEXPR bool check(bool R = sprout::counter_detail::check(0, sprout::counter_detail::tag<N>())) {
return R;
}
template<int N>
SPROUT_CONSTEXPR int counter_impl(sprout::false_type, sprout::counter_detail::tag<N>) {
SPROUT_CONSTEXPR int counter(sprout::false_type, sprout::counter_detail::tag<N>) {
return 0;
}
template<int N>
SPROUT_CONSTEXPR int counter_impl(
SPROUT_CONSTEXPR int counter(
sprout::true_type, sprout::counter_detail::tag<N>,
int R = !sprout::counter_detail::check<N>() ? N
: counter_impl(sprout::bool_constant<sprout::counter_detail::check<N>()>(), sprout::counter_detail::tag<N + 1>())
: counter(sprout::bool_constant<sprout::counter_detail::check<N>()>(), sprout::counter_detail::tag<N + 1>())
)
{
return R;
}
template<int N = 0>
SPROUT_CONSTEXPR int counter(int R = sprout::counter_detail::counter_impl(sprout::true_type(), sprout::counter_detail::tag<N>())) {
SPROUT_CONSTEXPR int counter(int R = sprout::counter_detail::counter(sprout::true_type(), sprout::counter_detail::tag<N>())) {
return R;
}
} // namespace counter_detail