Data Types in C++ - tccicomputercoaching.com In computer science and computer programming, a data type is a grouping of data through which the compiler or interpreter can know how the developer expects to utilize the data. Most programming languages support various types of data, for example: 12 , 67.90, 'c', "hello!! Tom"
As a human being we can differentiate all values are different, but machine can't differentiate. So, we have to inform compiler which type data is being used. There are main 3 categories in C++ Language: 1. Built in Types:
void - valueless special purpose type which we will examine closely in later sections. int - integer: a whole number. o i.e. 45,6789 float - floating point value: a number with a fractional part. o i.e. 56.89 char - a single character.
Four types data there are: a) small a to z b) capital A to Z c) 0 to 9 digit d) other symbols like tab, space,*,>,?,$ etc. i.e 'x', 'c', '1','*','#' etc.
2. User Defined Types:
Structure Union Enum Class
3. Derived Types:
Array Function Pointer
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