mirror of
https://github.com/catchorg/Catch2.git
synced 2024-11-04 05:09:53 +01:00
85 lines
2.9 KiB
C
85 lines
2.9 KiB
C
|
/*
|
||
|
|
* Copyright 2016 Two Blue Cubes Ltd. All rights reserved.
|
||
|
|
*
|
||
|
|
* Distributed under the Boost Software License, Version 1.0. (See accompanying
|
||
|
|
* file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
||
|
|
*/
|
||
|
|
#ifndef CATCH_STRINGREF_H_INCLUDED
|
||
|
|
#define CATCH_STRINGREF_H_INCLUDED
|
||
|
|
|
||
|
|
namespace Catch {
|
||
|
|
|
||
|
|
class String;
|
||
|
|
class StringData;
|
||
|
|
|
||
|
|
/// A non-owning string class (similar to the forthcoming std::string_view)
|
||
|
|
/// Note that, because a StringRef may be a substring of another string,
|
||
|
|
/// it may not be null terminated. c_str() must return a null terminated
|
||
|
|
/// string, however, and so the StringRef will internally take ownership
|
||
|
|
/// (taking a copy), if necessary. In theory this ownership is not externally
|
||
|
|
/// visible - but it does mean (substring) StringRefs should not be shared between
|
||
|
|
/// threads.
|
||
|
|
class StringRef {
|
||
|
|
friend struct StringRefTestAccess;
|
||
|
|
friend class StringData;
|
||
|
|
friend class StringBuilder;
|
||
|
|
|
||
|
|
using size_type = unsigned long;
|
||
|
|
|
||
|
|
char const* m_start;
|
||
|
|
size_type m_size;
|
||
|
|
|
||
|
|
StringData const* m_data = nullptr;
|
||
|
|
|
||
|
|
static StringRef s_emptyStringRef;
|
||
|
|
|
||
|
|
void takeOwnership();
|
||
|
|
|
||
|
|
public: // construction/ assignment
|
||
|
|
StringRef();
|
||
|
|
StringRef( StringRef const& other );
|
||
|
|
StringRef( StringRef&& other ) noexcept;
|
||
|
|
StringRef( char const* rawChars );
|
||
|
|
StringRef( char const* rawChars, size_type size );
|
||
|
|
StringRef( String const& other );
|
||
|
|
StringRef( String&& other ) noexcept;
|
||
|
|
~StringRef() noexcept;
|
||
|
|
|
||
|
|
auto operator = ( StringRef other ) -> StringRef&;
|
||
|
|
|
||
|
|
void swap( StringRef& other ) noexcept;
|
||
|
|
|
||
|
|
public: // operators
|
||
|
|
auto operator == ( StringRef const& other ) const noexcept -> bool;
|
||
|
|
auto operator != ( StringRef const& other ) const noexcept -> bool;
|
||
|
|
|
||
|
|
auto operator[] ( size_type index ) const noexcept -> char {
|
||
|
|
return m_start[index];
|
||
|
|
}
|
||
|
|
|
||
|
|
public: // named queries
|
||
|
|
auto empty() const noexcept -> bool {
|
||
|
|
return m_size == 0;
|
||
|
|
}
|
||
|
|
auto size() const noexcept -> size_type {
|
||
|
|
return m_size;
|
||
|
|
}
|
||
|
|
auto c_str() const -> char const*;
|
||
|
|
|
||
|
|
public: // substrings and searches
|
||
|
|
auto substr( size_type start, size_type size ) const noexcept -> StringRef;
|
||
|
|
|
||
|
|
private: // ownership queries - may not be consistent between calls
|
||
|
|
auto isOwned() const noexcept -> bool;
|
||
|
|
auto isSubstring() const noexcept -> bool;
|
||
|
|
auto data() const noexcept -> char const*;
|
||
|
|
};
|
||
|
|
|
||
|
|
auto operator + ( StringRef const& lhs, StringRef const& rhs ) -> String;
|
||
|
|
auto operator + ( StringRef const& lhs, char const* rhs ) -> String;
|
||
|
|
auto operator + ( char const* lhs, StringRef const& rhs ) -> String;
|
||
|
|
|
||
|
|
} // namespace Catch
|
||
|
|
|
||
|
|
#endif // CATCH_STRINGREF_H_INCLUDED
|