Question

what is the difference between user defined and predefined in c++ ? reply soon my dear frnds

Answer 1

Predefined: the structure of the data type is already defined internally, for example if you consider ‘C’ Programming language, some of the predefined data types are int, char, float etc.

Example:

int  n; // n is a variable of type int (predefined)

User-defined: If you create the structure of the datatype by yourself then it is known as user-defined.

Example:

/*struct myDType{

 int a;

 float c;