C datatypes
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This document discusses different data types in programming. It describes built-in data types like int, char, float, and double that are predefined by languages. It also covers user-defined data types like arrays, pointers, structures, and unions. Finally, it provides details on number data types, listing the memory size, value ranges, and format specifiers for short int, unsigned short int, int, long int, and other numeric types.
C datatypes
- 1. Notes on Data Types Instructor: Arghodeep Paul Firmware Engineer at BitBible Technologies Pvt. Ltd. Content Author: Arghodeep Paul License: OpenSource Date: 14 July 2021
- 2. Data Types Data Types are the types of Data that is going to be used in our Program. Built-in Data Types These types are defined by the Language. Also known as predefined or primary Data Types. Int, char, float, double, void User defined Data Types These types are defined by the User. Also known as Secondary Data Types. Array, pointer, structure, union, enum Number Types Data Type Memory (bytes) Range Format Specifier short int 2 -32,768 to 32,767 %hd
- 3. Data Type Memory (bytes) Range Format Specifier unsigned short int 2 0 to 65,535 %hu unsigned int 4 0 to 4,294,967,295 %u int 4 -2,147,483,648 to 2,147,483,647 %d long int 4 -2,147,483,648 to 2,147,483,647 %ld unsigned long int 4 0 to 4,294,967,295 %lu long long int 8 -(2^63) to (2^63)-1 %lld unsigned long long int 8 0 to 18,446,744,073,709,551,615 %llu signed char 1 -128 to 127 %c
- 4. Data Type Memory (bytes) Range Format Specifier unsigned char 1 0 to 255 %c float 4 %f double 8 %lf long double 16 %Lf