C Data Types

In c we declare a variable with a data type to store the type of data.
Here are some data types

s
1. Integer Types - int, short, long, unsigned int, unsigned short, unsigned long
2. Floating-Point Types - float, double, long double
3. Character Type - char

Integer Types

A varable which is declared by a integer data type then the value only holds integer values.
There are different types of integer to allocate fixed memory to the variable base on the size it provides to hold a value.

#include <stdio.h>

int main() {
    int integerVar = 42;
    short shortVar = 32767; 
    long longVar = 1234567890;
    unsigned int unsignedIntVar = 100; 
    unsigned short unsignedShortVar = 65535; 
    unsigned long unsignedLongVar = 4294967295; 

    printf("Integer: %d\n", integerVar);
    printf("Short: %d\n", shortVar);
    printf("Long: %ld\n", longVar);
    printf("Unsigned Integer: %u\n", unsignedIntVar);
    printf("Unsigned Short: %u\n", unsignedShortVar);
    printf("Unsigned Long: %u\n", unsignedLongVar);

    return 0;
}

Floating-point Types

A varable which is declared by a Float data type then the value only holds decimal values.
There are different types of float to allocate fixed memory to the variable base on the size it provides to hold a number of decimal values.

#include <stdio.h>

int main() {
    float price = 29.99;
    double pi = 3.141592653589793;
    long double largeNumber = 12345678901234567890.123456789;
    
    printf("Price: $%.2f\n", price);
    printf("Value of Pi: %.10f\n", pi);
    printf("Large Number: %.15Lf\n", largeNumber);

    return 0;
}

Character Type

char is the only Character type in c.
It has always a size of 1 byte.
Has a Range of -128 to 127 (signed) or 0 to 255 (unsigned)

#include <stdio.h>

int main() {
    char charVar = 'A';
    
    printf("Character: %c\n", charVar);

    return 0;
}

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