C + + 5 modifier types

7 Big Basic data types:BOOL Char int float Double voidwchar_t1 . Data type modifier: Change the meaning of the base type before the data type signed signed modifier, which modifies char ,int,wchar_tunsigned unsigned modifier, can modify char,int,wchar_t LongModifier, can be decoratedint、Double Shortmodifier, can be modified int,wchar_t 2. Type qualifier: Provides additional information for convenienceConstModified objects cannot be modified during program executionvolatileThe value of the decorated object may be changed in a way that is not explicitly specified by the program the restrict decorated pointer is the only way to change the object (after C99, ecplicit can block implicit conversions from the converted constructor that should not be allowed 

C + + 5 modifier types