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3f38f9511b
Add it for completeness, though it is the same as plain `std::string`. Also extend the SunPro/EDG workaround to cover this type.
91 lines
1.7 KiB
C++
91 lines
1.7 KiB
C++
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file LICENSE.rst 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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#if defined(__SUNPRO_CC) || defined(__EDG__)
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# include <string>
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# include <vector>
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namespace ArgumentParser {
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template <typename T>
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struct Maybe;
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template <>
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struct Maybe<std::string> : public std::string
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{
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using std::string::basic_string;
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using std::string::operator=;
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};
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template <typename T>
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struct MaybeEmpty;
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# if defined(__LCC__) && (__EDG_VERSION__ >= 603)
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template <>
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struct MaybeEmpty<std::vector<std::string>> : public std::vector<std::string>
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{
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using std::vector<std::string>::vector;
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using std::vector<std::string>::operator=;
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};
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# endif
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template <typename T>
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struct MaybeEmpty<std::vector<T>> : public std::vector<T>
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{
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using std::vector<T>::vector;
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using std::vector<T>::operator=;
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};
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template <>
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struct MaybeEmpty<std::string> : public std::string
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{
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using std::string::basic_string;
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using std::string::operator=;
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};
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template <typename T>
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struct NonEmpty;
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template <typename T>
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struct NonEmpty<std::vector<T>> : public std::vector<T>
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{
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using std::vector<T>::vector;
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using std::vector<T>::operator=;
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};
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template <>
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struct NonEmpty<std::string> : public std::string
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{
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using std::string::basic_string;
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using std::string::operator=;
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};
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} // namespace ArgumentParser
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#else
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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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using T::T;
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using T::operator=;
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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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using T::T;
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using T::operator=;
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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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using T::T;
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using T::operator=;
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};
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} // namespace ArgumentParser
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#endif
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