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60 lines
2 KiB
C++
60 lines
2 KiB
C++
#ifndef _C4_STD_STRING_FWD_HPP_
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#define _C4_STD_STRING_FWD_HPP_
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/** @file string_fwd.hpp */
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#ifndef DOXYGEN
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#ifndef C4CORE_SINGLE_HEADER
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#include "c4/substr_fwd.hpp"
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#endif
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#include <cstddef>
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// forward declarations for std::string
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#if defined(__GLIBCXX__) || defined(__GLIBCPP__)
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#include <bits/stringfwd.h> // use the fwd header in glibcxx
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#elif defined(_LIBCPP_VERSION) || defined(__APPLE_CC__)
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#include <iosfwd> // use the fwd header in stdlibc++
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#elif defined(_MSC_VER)
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#include "c4/error.hpp"
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//! @todo is there a fwd header in msvc?
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namespace std {
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C4_SUPPRESS_WARNING_MSVC_WITH_PUSH(4643) // Forward declaring 'char_traits' in namespace std is not permitted by the C++ Standard.
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template<typename> struct char_traits;
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template<typename> class allocator;
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template<typename _CharT, typename _Traits, typename _Alloc> class basic_string;
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using string = basic_string<char, char_traits<char>, allocator<char>>;
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C4_SUPPRESS_WARNING_MSVC_POP
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} /* namespace std */
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#else
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#error "unknown standard library"
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#endif
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namespace c4 {
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C4_ALWAYS_INLINE c4::substr to_substr(std::string &s) noexcept;
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C4_ALWAYS_INLINE c4::csubstr to_csubstr(std::string const& s) noexcept;
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bool operator== (c4::csubstr ss, std::string const& s);
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bool operator!= (c4::csubstr ss, std::string const& s);
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bool operator>= (c4::csubstr ss, std::string const& s);
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bool operator> (c4::csubstr ss, std::string const& s);
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bool operator<= (c4::csubstr ss, std::string const& s);
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bool operator< (c4::csubstr ss, std::string const& s);
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bool operator== (std::string const& s, c4::csubstr ss);
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bool operator!= (std::string const& s, c4::csubstr ss);
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bool operator>= (std::string const& s, c4::csubstr ss);
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bool operator> (std::string const& s, c4::csubstr ss);
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bool operator<= (std::string const& s, c4::csubstr ss);
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bool operator< (std::string const& s, c4::csubstr ss);
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size_t to_chars(c4::substr buf, std::string const& s);
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bool from_chars(c4::csubstr buf, std::string * s);
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} // namespace c4
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#endif // DOXYGEN
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#endif // _C4_STD_STRING_FWD_HPP_
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