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command line: allow has_arg to handle arg_descriptor<bool,false,true> #3318
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@ -214,8 +214,8 @@ namespace command_line
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}
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}
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template<typename T, bool required>
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bool has_arg(const boost::program_options::variables_map& vm, const arg_descriptor<T, required>& arg)
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template<typename T, bool required, bool dependent>
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typename std::enable_if<!std::is_same<T, bool>::value, bool>::type has_arg(const boost::program_options::variables_map& vm, const arg_descriptor<T, required, dependent>& arg)
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{
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auto value = vm[arg.name];
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return !value.empty();
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@ -239,8 +239,8 @@ namespace command_line
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return vm[arg.name].template as<T>();
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}
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template<>
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inline bool has_arg<bool, false>(const boost::program_options::variables_map& vm, const arg_descriptor<bool, false>& arg)
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template<bool dependent>
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inline bool has_arg(const boost::program_options::variables_map& vm, const arg_descriptor<bool, false, dependent>& arg)
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{
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return get_arg<bool, false>(vm, arg);
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}
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