Шаблон:CreateFileAsBinaryDataStorage example - История изменений

Андрей Чусов в 02:32, 14 августа 2019

2019-08-14T02:32:34Z

← Предыдущая		Версия 12:32, 14 августа 2019
Строка 1:		Строка 1:
	<source lang='cpp'>		<source lang='cpp'>
	char l_filename[] = "./somefile";		char l_filename[] = "./somefile";
	std::size_t cb_filename = sizeof(l_filename) - 1 /term. 0/;		std::size_t cb_filename = sizeof(l_filename) - 1 /term. 0/;

	~~IIOBinaryData~~* pIO; ~~//uninitialized pointer~~		IContiguousDataStorage* pIO = nullptr;
	{		IDataStorage* pStorage = nullptr;
	~~IBinaryDataBase~~* pStorage; ~~//uninitialized pointer~~		return_code_t err = CreateFileAsBinaryDataStorage(l_filename, cb_filename, FileRead \| FileWrite, FileCreateAlways, &pStorage);
	~~int32_t~~ err = CreateFileAsBinaryDataStorage(l_filename, cb_filename, FileRead \| FileWrite, FileCreateAlways, ~~std::addressof(~~pStorage));		if (err < 0)
			goto cleanup; //failure of CreateFileAsBinaryDataStorage
	if (err < 0)		err = pStorage->IsInterfaceAvailable(ContiguousDataStorageType);
	~~return -1~~; //failure		if (err < 0)
	err = pStorage->IsInterfaceAvailable(~~IOBinaryDataType~~);		goto cleanup; //failure of IsInterfaceAvailable
	if (err < 0)		err = pStorage->RepresentAs(ContiguousDataStorageType, (void**) &pIO);
	{		if (err < 0)
	~~pStorage->Release();~~		goto cleanup; //failure of RepresentAs
	~~return -1~~; //failure of IsInterfaceAvailable
	}		//access the file via pIO...
	~~if (err == 1)~~
	{		cleanup:
	~~pStorage->Release();~~		if (pStorage)
	~~return 0; //Interface is not available~~		pStrorage->Release();
	}		if (pIO)
	err = pStorage->RepresentAs(~~IOBinaryDataType~~, (void**) ~~std::addressof(~~pIO));		pIO->Release();
	if (err < 0)
	{
	~~pStorage->Release();~~
	~~return -1~~; //failure of RepresentAs
	}
	~~pStorage->Release();~~
	}
	//access file via pIO...

	pIO->Release();
	</source>		</source>

Андрей Чусов в 06:27, 16 марта 2017

2017-03-16T06:27:55Z

← Предыдущая		Версия 16:27, 16 марта 2017
Строка 18:		Строка 18:
	if (err == 1)		if (err == 1)
	{		{
	~~pSotrage~~->Release();		pStorage->Release();
	return 0; //Interface is not available		return 0; //Interface is not available
	}		}

Андрей Чусов в 06:27, 16 марта 2017

2017-03-16T06:27:11Z

← Предыдущая		Версия 16:27, 16 марта 2017
Строка 12:		Строка 12:
	err = pStorage->IsInterfaceAvailable(IOBinaryDataType);		err = pStorage->IsInterfaceAvailable(IOBinaryDataType);
	if (err < 0)		if (err < 0)
			{
			pStorage->Release();
	return -1; //failure of IsInterfaceAvailable		return -1; //failure of IsInterfaceAvailable
			}
	if (err == 1)		if (err == 1)
			{
			pSotrage->Release();
	return 0; //Interface is not available		return 0; //Interface is not available
			}
	err = pStorage->RepresentAs(IOBinaryDataType, (void**) std::addressof(pIO));		err = pStorage->RepresentAs(IOBinaryDataType, (void**) std::addressof(pIO));
	if (err < 0)		if (err < 0)
			{
			pStorage->Release();
	return -1; //failure of RepresentAs		return -1; //failure of RepresentAs
			}
			pStorage->Release();
	}		}
	//access file via pIO...		//access file via pIO...

			pIO->Release();
	</source>		</source>

Андрей Чусов: Новая страница: « char l_filename[] = "./somefile"; std::size_t cb_filename = sizeof(l_filename) - 1 /term. 0/; IIOBinaryData* pIO; //uninitialized pointer {…»

2017-03-16T06:22:59Z

Новая страница: «<source lang='cpp'> char l_filename[] = "./somefile"; std::size_t cb_filename = sizeof(l_filename) - 1 term. 0: ; IIOBinaryData* pIO; //uninitialized pointer {…»

Новая страница

<source lang='cpp'>
char l_filename[] = "./somefile";
std::size_t cb_filename = sizeof(l_filename) - 1 /*term. 0*/;

IIOBinaryData* pIO; //uninitialized pointer
{
IBinaryDataBase* pStorage; //uninitialized pointer
int32_t err = CreateFileAsBinaryDataStorage(l_filename, cb_filename, FileRead | FileWrite, FileCreateAlways, std::addressof(pStorage));

if (err < 0)
return -1; //failure
err = pStorage->IsInterfaceAvailable(IOBinaryDataType);
if (err < 0)
return -1; //failure of IsInterfaceAvailable
if (err == 1)
return 0; //Interface is not available
err = pStorage->RepresentAs(IOBinaryDataType, (void**) std::addressof(pIO));
if (err < 0)
return -1; //failure of RepresentAs
}
//access file via pIO...
</source>

Шаблон:CreateFileAsBinaryDataStorage example - История изменений

Андрей Чусов в 02:32, 14 августа 2019

Андрей Чусов в 06:27, 16 марта 2017

Андрей Чусов в 06:27, 16 марта 2017

Андрей Чусов: Новая страница: « char l_filename[] = "./somefile"; std::size_t cb_filename = sizeof(l_filename) - 1 /*term. 0*/; IIOBinaryData* pIO; //uninitialized pointer {…»

Андрей Чусов: Новая страница: « char l_filename[] = "./somefile"; std::size_t cb_filename = sizeof(l_filename) - 1 /term. 0/; IIOBinaryData* pIO; //uninitialized pointer {…»