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f46b2e9142
Bindings to `std::string` require one value. Some clients have been filtering `keywordsMissingValue` to support keywords that tolerate a missing value. Offer them a type-safe way to achieve this instead.
25 lines
431 B
C++
25 lines
431 B
C++
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file Copyright.txt or https://cmake.org/licensing for details. */
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#pragma once
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#include "cmConfigure.h" // IWYU pragma: keep
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namespace ArgumentParser {
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template <typename T>
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struct Maybe : public T
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{
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};
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template <typename T>
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struct MaybeEmpty : public T
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{
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};
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template <typename T>
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struct NonEmpty : public T
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{
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};
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} // namespace ArgumentParser
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