![5. short and long
If you need to use a large number, you can use a type specifier long.
Here's how:
long a;
long long b;
long double c;
Here variables a and b can store integer values. And, c can store a floating-point number.
If you are sure, only a small integer ([−32,767, +32,767] range) will be used, you can use
short.
Here’s how:
short d;](https://image.slidesharecdn.com/structuredprogrammingwithc-datatypes-241221155522-fa1ed272/85/Structured-Programming-with-C-Data-Types-ppt-8-320.jpg)
Structured Programming with C - Data Types.ppt
- 1. Data Types in C In C programming, Data types are declarations for variables. Variables on the other hand are memory allocations in a programming language. Example : int age; Here, age is a variable of int (integer) type. The size of int is 4 bytes.
- 2. Basic Data types in C Type Size (bytes) Format Specifier int 2 %d , %i char 1 %c float 4 %f double 8 %lf short int 2 %hd unsigned int 2 %u long int 4 %ld , %li Long long int Atleast 8 %lld, %lli
- 3. Basic Data types in C Type Size (bytes) Format Specifier Unsigned long int Atleast 4 %lu Unsigned long long int Atleast 8 %llu Signed char 1 %c Unsigned char 1 %c Long double Atleast 10 %Lf
- 4. 1. int Integers are whole numbers that can have both zero, positive and negative values but no decimal values. For example, 0, -5, 10. The size of int is usually 4 bytes (32 bits). We can use int for declaring an integer variable. e.g. “ int id; ” Here, id is a variable of type integer. NB : You can declare multiple variables at once in C programming. For example; “ int id, age; ”
- 5. 2. float and double float and double are used to hold real numbers. For example ; float salary; double price; NB : In C, floating-point numbers can also be represented in exponential. For example, float normalizationFactor = 22.442e2; Question: What's the difference between float and double? The size of float (single precision float data type) is 4 bytes. And the size of double (double precision float data type) is 8 bytes.
- 6. 3. char Keyword char is used for declaring character type variables. For example, char test = 'h'; The size of the character variable is 1 byte.
- 7. 4. void void is an incomplete type. It means "nothing" or "no type". You can think of void as absent. For example, if a function is not returning anything, its return type should be void. Note that, you cannot create variables of void type.
- 8. 5. short and long If you need to use a large number, you can use a type specifier long. Here's how: long a; long long b; long double c; Here variables a and b can store integer values. And, c can store a floating-point number. If you are sure, only a small integer ([−32,767, +32,767] range) will be used, you can use short. Here’s how: short d;
- 9. HOW TO CHECK THE SIZE OF A VARIABLE You can always check the size of a variable using the sizeof() operator. #include <stdio.h> int main() { short a; long b; long long c; long double d; printf("size of short = %d bytesn", sizeof(a)); printf("size of long = %d bytesn", sizeof(b)); printf("size of long long = %d bytesn", sizeof(c)); printf("size of long double= %d bytesn", sizeof(d)); return 0; }
- 10. Resources for more Learning Data Types in C Programming DataTypes In C | What Are DataTypes In C and Their Types | C Programming for Be ginners