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Added string classes

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Phil Nash 2017-06-29 11:18:14 +01:00
parent cb0a5194af
commit 78e7994435
13 changed files with 908 additions and 0 deletions
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52
include/internal/catch_stringdata.h Normal file
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/*
* 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_STRINGDATA_H_INCLUDED
#define CATCH_STRINGDATA_H_INCLUDED
#include <atomic>
namespace Catch {
class StringRef;
class StringData {
mutable std::atomic<unsigned int> m_refs;
public:
unsigned int size;
union {
char chars[1];
};
auto isUniquelyOwned() const noexcept -> bool {
return m_refs == 1;
}
static auto getEmpty() -> StringData*;
static auto create( StringRef const& stringRef ) -> StringData*;
static auto create( StringRef const& stringRef, unsigned long capacity ) -> StringData*;
void addRef() const noexcept {
if( m_refs > 0 )
m_refs++;
}
void release() const noexcept {
unsigned int refs = m_refs;
if( refs > 1 )
m_refs--;
else if( refs == 1 )
delete[] reinterpret_cast<char const*>( this );
}
private:
StringData( unsigned int initialRef = 1 );
StringData( StringRef const& stringRef, unsigned long capacity );
StringData( StringData const& ) = delete;
StringData& operator=( StringData const& ) = delete;
};
} // namespace Catch
#endif // CATCH_STRINGDATA_H_INCLUDED