datatypes in c++ and its sizes

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datatypes in c++ and its sizes
1 Answer(s) a year and 10 months ago
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What is mean by datatypes in C++ and what is the sizes of different datatypes?

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July 25, 2011 at 2:56 PM

Data Types are used to identify what kind of data a variable is holding...such as if a variable is integer or char type? For example ..

a = 1; or a = "orange";

how will you recognize what type of value the variable "a" have ..at runtime?

That is the only reason we use datatypes like int, char, double etc..

List of DataTypes

char - 1byte
short int (short) - 2bytes
int - 4bytes
long int (long) - 4bytes
bool - 1byte (true or false)
float - 4bytes
double - 8bytes
long double - 8bytes
wchar_t - 2 or 4 bytes

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