QRandomGenerator64 Class▲
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Header: QRandomGenerator64
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Since: Qt 5.10
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CMake:
find_package(Qt6 REQUIRED COMPONENTS Core)
target_link_libraries(mytarget PRIVATE Qt6::Core)
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qmake: QT += core
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Inherits: QRandomGenerator
Detailed Description▲
QRandomGenerator64 is a simple adaptor class around QRandomGenerator, making the QRandomGenerator::generate64() function the default for operator()(), instead of the function that returns 32-bit quantities. This class is intended to be used in conjunction with Standard Library algorithms that need 64-bit quantities instead of 32-bit ones.
In all other aspects, the class is the same. Please refer to QRandomGenerator's documentation for more information.
See Also▲
See also QRandomGenerator
Member Type Documentation▲
QRandomGenerator64::result_type▲
Member Function Documentation▲
quint64 QRandomGenerator64::generate()▲
Generates one 64-bit random value and returns it.
Note about casting to a signed integer: all bits returned by this function are random, so there's a 50% chance that the most significant bit will be set. If you wish to cast the returned value to qint64 and keep it positive, you should mask the sign bit off:
qint64 value = QRandomGenerator64::global()->generate() & std::numeric_limits<qint64>::max();See Also▲
See also QRandomGenerator, QRandomGenerator::generate64()
QRandomGenerator64::result_type QRandomGenerator64::operator()()▲
Generates a 64-bit random quantity and returns it.
See Also▲
See also QRandomGenerator::generate(), QRandomGenerator::generate64()