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Make use of C++17 std::optional<> instead of boost::optional<>.

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This commit is contained in:
Christian Parpart
2019-10-28 11:39:30 +01:00
parent 302a51a58c
commit df729b3084
67 changed files with 173 additions and 168 deletions
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liblangutil/EVMVersion.h
+3 -3
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@@ -22,9 +22,9 @@
#include <libevmasm/Instruction.h>
#include <optional>
#include <string>
#include <boost/optional.hpp>
#include <boost/operators.hpp>
@@ -51,12 +51,12 @@ public:
static EVMVersion istanbul() { return {Version::Istanbul}; }
static EVMVersion berlin() { return {Version::Berlin}; }
static boost::optional<EVMVersion> fromString(std::string const& _version)
static std::optional<EVMVersion> fromString(std::string const& _version)
{
for (auto const& v: {homestead(), tangerineWhistle(), spuriousDragon(), byzantium(), constantinople(), petersburg(), istanbul(), berlin()})
if (_version == v.name())
return v;
return {};
return std::nullopt;
}
bool operator==(EVMVersion const& _other) const { return m_version == _other.m_version; }