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add overloaded helper util for std::visit

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Signed-off-by: Philipp Jungkamp <Philipp.Jungkamp@opal-rt.com>
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Philipp Jungkamp 2023-06-13 17:01:55 +02:00 • committed by Steffen Vogel
parent 97b2e916c1
commit 2103e4b05f
1 changed files with 8 additions and 0 deletions
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8
common/include/villas/utils.hpp
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@ -194,6 +194,14 @@ bool isContainer();
// Check if the process is running in a privileged environment (has SYS_ADMIN capability).
bool isPrivileged();
// helper type for std::visit
template<class... Ts>
struct overloaded : Ts... { using Ts::operator()...; };
// explicit deduction guide (not needed as of C++20)
template<class... Ts>
overloaded(Ts...) -> overloaded<Ts...>;
namespace base64 {
using byte = std::uint8_t;