diff options
Diffstat (limited to 'src/include/util')
| -rw-r--r-- | src/include/util/impl/enable_if.H | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/src/include/util/impl/enable_if.H b/src/include/util/impl/enable_if.H new file mode 100644 index 000000000..240a22d38 --- /dev/null +++ b/src/include/util/impl/enable_if.H @@ -0,0 +1,42 @@ +/* IBM_PROLOG_BEGIN_TAG */ +/* This is an automatically generated prolog. */ +/* */ +/* $Source: src/include/util/impl/enable_if.H $ */ +/* */ +/* OpenPOWER HostBoot Project */ +/* */ +/* Contributors Listed Below - COPYRIGHT 2016 */ +/* [+] International Business Machines Corp. */ +/* */ +/* */ +/* Licensed under the Apache License, Version 2.0 (the "License"); */ +/* you may not use this file except in compliance with the License. */ +/* You may obtain a copy of the License at */ +/* */ +/* http://www.apache.org/licenses/LICENSE-2.0 */ +/* */ +/* Unless required by applicable law or agreed to in writing, software */ +/* distributed under the License is distributed on an "AS IS" BASIS, */ +/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */ +/* implied. See the License for the specific language governing */ +/* permissions and limitations under the License. */ +/* */ +/* IBM_PROLOG_END_TAG */ +#ifndef __UTIL_IMPL_ENABLE_IF_H +#define __UTIL_IMPL_ENABLE_IF_H +namespace std +{ + // If Cond is true, std::enable_if has a public member typedef type, + // equal to T; otherwise, there is no member typedef + template <bool Cond, class T = void> + struct enable_if {}; + + template <class T> + struct enable_if<true, T> { typedef T type; }; + + // Helper type + template< bool Cond, class T = void > + using enable_if_t = typename enable_if<Cond,T>::type; +} + +#endif |
