<QtPreprocessorSupport>

Preprocessor-specific macros. 更多...

头：	#include <QtPreprocessorSupport>

宏

	QT_STRINGIFY ( arg )
	Q_UNUSED ( name )

详细描述

宏文档编制

QT_STRINGIFY ( arg )

The macro can be used to turn the builtin line expander arg into a string literal.

Q_UNUSED ( name )

Indicates to the compiler that the parameter with the specified name is not used in the body of a function. This can be used to suppress compiler warnings while allowing functions to be defined with meaningful parameter names in their signatures.