FromBase64Result 类

class QByteArray ::FromBase64Result

The QByteArray::FromBase64Result 类保持调用结果为 QByteArray::fromBase64Encoding . 更多...

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公共函数

bool	operator bool () const
const QByteArray &	operator* () const

公共变量

QByteArray	decoded
QByteArray::Base64DecodingStatus	decodingStatus

相关非成员

size_t	qHash (const QByteArray::FromBase64Result & key , size_t seed = 0)
bool	operator!= (const QByteArray::FromBase64Result & lhs , const QByteArray::FromBase64Result & rhs )
bool	operator== (const QByteArray::FromBase64Result & lhs , const QByteArray::FromBase64Result & rhs )

详细描述

Objects of this class can be used to check whether the conversion was successful, and if so, retrieve the decoded QByteArray . The conversion operators defined for QByteArray::FromBase64Result make its usage straightforward:

void process(const QByteArray &);
if (auto result = QByteArray::fromBase64Encoding(encodedData))
    process(*result);
					

Alternatively, it is possible to access the conversion status and the decoded data directly:

auto result = QByteArray::fromBase64Encoding(encodedData);
if (result.decodingStatus == QByteArray::Base64DecodingStatus::Ok)
    process(result.decoded);
					

另请参阅 QByteArray::fromBase64 .

成员函数文档编制

[explicit noexcept] bool FromBase64Result:: operator bool () const

Returns whether the decoding was successful. This is equivalent to checking whether the decodingStatus member is equal to QByteArray::Base64DecodingStatus::Ok.

[noexcept] const QByteArray &FromBase64Result:: operator* () const

返回解码字节数组。

成员变量文档编制

QByteArray FromBase64Result:: decoded

包含解码字节数组。

QByteArray::Base64DecodingStatus FromBase64Result:: decodingStatus

Contains whether the decoding was successful, expressed as a value of type QByteArray::Base64DecodingStatus.

相关非成员

[noexcept] size_t qHash (const QByteArray::FromBase64Result & key , size_t seed = 0)

返回哈希值为 key ，使用 seed 做计算种子。

[noexcept] bool operator!= (const QByteArray::FromBase64Result & lhs , const QByteArray::FromBase64Result & rhs )

返回 true if lhs and rhs 不同，否则返回 false .

[noexcept] bool operator== (const QByteArray::FromBase64Result & lhs , const QByteArray::FromBase64Result & rhs )

返回 true if lhs and rhs 相等，否则返回 false .

lhs and rhs are equal if and only if they contain the same decoding status and, if the status is QByteArray::Base64DecodingStatus::Ok, if and only if they contain the same decoded data.

内容

• 公共函数

• 公共变量

• 相关非成员

• 详细描述